diff --git a/include/boost/phoenix/bind/bind_function.hpp b/include/boost/phoenix/bind/bind_function.hpp
index 780172b..ea1e2d7 100644
--- a/include/boost/phoenix/bind/bind_function.hpp
+++ b/include/boost/phoenix/bind/bind_function.hpp
@@ -36,12 +36,12 @@ namespace boost { namespace phoenix {
     >
     inline
     typename detail::expression::function_eval<
-        detail::function_ptr<1, RT, RT(*)(T0 &)>
+        detail::function_ptr<1, RT, RT(*)(T0)>
       , A0
     >::type const
-    bind(RT(*f)(T0 &), A0 const & a0)
+    bind(RT(*f)(T0), A0 const & a0)
     {
-        typedef detail::function_ptr<1, RT, RT(*)(T0 &)> fp_type;
+        typedef detail::function_ptr<1, RT, RT(*)(T0)> fp_type;
         return detail::expression::function_eval<fp_type, A0>::make(fp_type(f), a0);
     }
 
diff --git a/include/boost/phoenix/core/detail/actor_operator.hpp b/include/boost/phoenix/core/detail/actor_operator.hpp
index 16feace..d349a5b 100644
--- a/include/boost/phoenix/core/detail/actor_operator.hpp
+++ b/include/boost/phoenix/core/detail/actor_operator.hpp
@@ -78,7 +78,7 @@
         }
 
         template <BOOST_PHOENIX_typename_A>
-        typename result_of::actor<proto_base_expr const, BOOST_PHOENIX_A_ref>::type
+        typename result_of::actor<proto_base_expr, BOOST_PHOENIX_A_ref>::type
         operator()(BOOST_PHOENIX_A_ref_a) const
         {
             typedef
@@ -106,7 +106,7 @@
         }
 
         template <BOOST_PHOENIX_typename_A>
-        typename result_of::actor<proto_base_expr const, BOOST_PHOENIX_A_const_ref>::type
+        typename result_of::actor<proto_base_expr, BOOST_PHOENIX_A_const_ref>::type
         operator()(BOOST_PHOENIX_A_const_ref_a) const
         {
             typedef
diff --git a/include/boost/phoenix/core/detail/preprocessed/actor_operator_10.hpp b/include/boost/phoenix/core/detail/preprocessed/actor_operator_10.hpp
index a99bd27..78777de 100644
--- a/include/boost/phoenix/core/detail/preprocessed/actor_operator_10.hpp
+++ b/include/boost/phoenix/core/detail/preprocessed/actor_operator_10.hpp
@@ -58,7 +58,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2) const
         {
             typedef
@@ -84,7 +84,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2) const
         {
             typedef
@@ -125,7 +125,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3) const
         {
             typedef
@@ -151,7 +151,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3) const
         {
             typedef
@@ -192,7 +192,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4) const
         {
             typedef
@@ -218,7 +218,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4) const
         {
             typedef
@@ -259,7 +259,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5) const
         {
             typedef
@@ -285,7 +285,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5) const
         {
             typedef
@@ -326,7 +326,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6) const
         {
             typedef
@@ -352,7 +352,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6) const
         {
             typedef
@@ -393,7 +393,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7) const
         {
             typedef
@@ -419,7 +419,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7) const
         {
             typedef
@@ -460,7 +460,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8) const
         {
             typedef
@@ -486,7 +486,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8) const
         {
             typedef
@@ -527,7 +527,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9) const
         {
             typedef
@@ -553,7 +553,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9) const
         {
             typedef
diff --git a/include/boost/phoenix/core/detail/preprocessed/actor_operator_20.hpp b/include/boost/phoenix/core/detail/preprocessed/actor_operator_20.hpp
index 773fff2..5beea00 100644
--- a/include/boost/phoenix/core/detail/preprocessed/actor_operator_20.hpp
+++ b/include/boost/phoenix/core/detail/preprocessed/actor_operator_20.hpp
@@ -58,7 +58,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2) const
         {
             typedef
@@ -84,7 +84,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2) const
         {
             typedef
@@ -125,7 +125,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3) const
         {
             typedef
@@ -151,7 +151,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3) const
         {
             typedef
@@ -192,7 +192,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4) const
         {
             typedef
@@ -218,7 +218,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4) const
         {
             typedef
@@ -259,7 +259,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5) const
         {
             typedef
@@ -285,7 +285,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5) const
         {
             typedef
@@ -326,7 +326,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6) const
         {
             typedef
@@ -352,7 +352,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6) const
         {
             typedef
@@ -393,7 +393,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7) const
         {
             typedef
@@ -419,7 +419,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7) const
         {
             typedef
@@ -460,7 +460,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8) const
         {
             typedef
@@ -486,7 +486,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8) const
         {
             typedef
@@ -527,7 +527,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9) const
         {
             typedef
@@ -553,7 +553,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9) const
         {
             typedef
@@ -594,7 +594,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10) const
         {
             typedef
@@ -620,7 +620,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10) const
         {
             typedef
@@ -661,7 +661,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11) const
         {
             typedef
@@ -687,7 +687,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11) const
         {
             typedef
@@ -728,7 +728,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12) const
         {
             typedef
@@ -754,7 +754,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12) const
         {
             typedef
@@ -795,7 +795,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13) const
         {
             typedef
@@ -821,7 +821,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13) const
         {
             typedef
@@ -862,7 +862,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14) const
         {
             typedef
@@ -888,7 +888,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14) const
         {
             typedef
@@ -929,7 +929,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15) const
         {
             typedef
@@ -955,7 +955,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15) const
         {
             typedef
@@ -996,7 +996,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16) const
         {
             typedef
@@ -1022,7 +1022,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16) const
         {
             typedef
@@ -1063,7 +1063,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17) const
         {
             typedef
@@ -1089,7 +1089,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17) const
         {
             typedef
@@ -1130,7 +1130,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18) const
         {
             typedef
@@ -1156,7 +1156,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18) const
         {
             typedef
@@ -1197,7 +1197,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19) const
         {
             typedef
@@ -1223,7 +1223,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19) const
         {
             typedef
diff --git a/include/boost/phoenix/core/detail/preprocessed/actor_operator_30.hpp b/include/boost/phoenix/core/detail/preprocessed/actor_operator_30.hpp
index 41d3fdc..b6af650 100644
--- a/include/boost/phoenix/core/detail/preprocessed/actor_operator_30.hpp
+++ b/include/boost/phoenix/core/detail/preprocessed/actor_operator_30.hpp
@@ -58,7 +58,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2) const
         {
             typedef
@@ -84,7 +84,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2) const
         {
             typedef
@@ -125,7 +125,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3) const
         {
             typedef
@@ -151,7 +151,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3) const
         {
             typedef
@@ -192,7 +192,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4) const
         {
             typedef
@@ -218,7 +218,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4) const
         {
             typedef
@@ -259,7 +259,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5) const
         {
             typedef
@@ -285,7 +285,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5) const
         {
             typedef
@@ -326,7 +326,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6) const
         {
             typedef
@@ -352,7 +352,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6) const
         {
             typedef
@@ -393,7 +393,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7) const
         {
             typedef
@@ -419,7 +419,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7) const
         {
             typedef
@@ -460,7 +460,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8) const
         {
             typedef
@@ -486,7 +486,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8) const
         {
             typedef
@@ -527,7 +527,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9) const
         {
             typedef
@@ -553,7 +553,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9) const
         {
             typedef
@@ -594,7 +594,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10) const
         {
             typedef
@@ -620,7 +620,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10) const
         {
             typedef
@@ -661,7 +661,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11) const
         {
             typedef
@@ -687,7 +687,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11) const
         {
             typedef
@@ -728,7 +728,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12) const
         {
             typedef
@@ -754,7 +754,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12) const
         {
             typedef
@@ -795,7 +795,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13) const
         {
             typedef
@@ -821,7 +821,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13) const
         {
             typedef
@@ -862,7 +862,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14) const
         {
             typedef
@@ -888,7 +888,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14) const
         {
             typedef
@@ -929,7 +929,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15) const
         {
             typedef
@@ -955,7 +955,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15) const
         {
             typedef
@@ -996,7 +996,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16) const
         {
             typedef
@@ -1022,7 +1022,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16) const
         {
             typedef
@@ -1063,7 +1063,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17) const
         {
             typedef
@@ -1089,7 +1089,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17) const
         {
             typedef
@@ -1130,7 +1130,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18) const
         {
             typedef
@@ -1156,7 +1156,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18) const
         {
             typedef
@@ -1197,7 +1197,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19) const
         {
             typedef
@@ -1223,7 +1223,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19) const
         {
             typedef
@@ -1264,7 +1264,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20) const
         {
             typedef
@@ -1290,7 +1290,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20) const
         {
             typedef
@@ -1331,7 +1331,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21) const
         {
             typedef
@@ -1357,7 +1357,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21) const
         {
             typedef
@@ -1398,7 +1398,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22) const
         {
             typedef
@@ -1424,7 +1424,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22) const
         {
             typedef
@@ -1465,7 +1465,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23) const
         {
             typedef
@@ -1491,7 +1491,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23) const
         {
             typedef
@@ -1532,7 +1532,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24) const
         {
             typedef
@@ -1558,7 +1558,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24) const
         {
             typedef
@@ -1599,7 +1599,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25) const
         {
             typedef
@@ -1625,7 +1625,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25) const
         {
             typedef
@@ -1666,7 +1666,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26) const
         {
             typedef
@@ -1692,7 +1692,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26) const
         {
             typedef
@@ -1733,7 +1733,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27) const
         {
             typedef
@@ -1759,7 +1759,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27) const
         {
             typedef
@@ -1800,7 +1800,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28) const
         {
             typedef
@@ -1826,7 +1826,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28) const
         {
             typedef
@@ -1867,7 +1867,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29) const
         {
             typedef
@@ -1893,7 +1893,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29) const
         {
             typedef
diff --git a/include/boost/phoenix/core/detail/preprocessed/actor_operator_40.hpp b/include/boost/phoenix/core/detail/preprocessed/actor_operator_40.hpp
index 990492b..e429e90 100644
--- a/include/boost/phoenix/core/detail/preprocessed/actor_operator_40.hpp
+++ b/include/boost/phoenix/core/detail/preprocessed/actor_operator_40.hpp
@@ -58,7 +58,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2) const
         {
             typedef
@@ -84,7 +84,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2) const
         {
             typedef
@@ -125,7 +125,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3) const
         {
             typedef
@@ -151,7 +151,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3) const
         {
             typedef
@@ -192,7 +192,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4) const
         {
             typedef
@@ -218,7 +218,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4) const
         {
             typedef
@@ -259,7 +259,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5) const
         {
             typedef
@@ -285,7 +285,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5) const
         {
             typedef
@@ -326,7 +326,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6) const
         {
             typedef
@@ -352,7 +352,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6) const
         {
             typedef
@@ -393,7 +393,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7) const
         {
             typedef
@@ -419,7 +419,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7) const
         {
             typedef
@@ -460,7 +460,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8) const
         {
             typedef
@@ -486,7 +486,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8) const
         {
             typedef
@@ -527,7 +527,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9) const
         {
             typedef
@@ -553,7 +553,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9) const
         {
             typedef
@@ -594,7 +594,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10) const
         {
             typedef
@@ -620,7 +620,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10) const
         {
             typedef
@@ -661,7 +661,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11) const
         {
             typedef
@@ -687,7 +687,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11) const
         {
             typedef
@@ -728,7 +728,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12) const
         {
             typedef
@@ -754,7 +754,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12) const
         {
             typedef
@@ -795,7 +795,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13) const
         {
             typedef
@@ -821,7 +821,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13) const
         {
             typedef
@@ -862,7 +862,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14) const
         {
             typedef
@@ -888,7 +888,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14) const
         {
             typedef
@@ -929,7 +929,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15) const
         {
             typedef
@@ -955,7 +955,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15) const
         {
             typedef
@@ -996,7 +996,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16) const
         {
             typedef
@@ -1022,7 +1022,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16) const
         {
             typedef
@@ -1063,7 +1063,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17) const
         {
             typedef
@@ -1089,7 +1089,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17) const
         {
             typedef
@@ -1130,7 +1130,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18) const
         {
             typedef
@@ -1156,7 +1156,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18) const
         {
             typedef
@@ -1197,7 +1197,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19) const
         {
             typedef
@@ -1223,7 +1223,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19) const
         {
             typedef
@@ -1264,7 +1264,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20) const
         {
             typedef
@@ -1290,7 +1290,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20) const
         {
             typedef
@@ -1331,7 +1331,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21) const
         {
             typedef
@@ -1357,7 +1357,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21) const
         {
             typedef
@@ -1398,7 +1398,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22) const
         {
             typedef
@@ -1424,7 +1424,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22) const
         {
             typedef
@@ -1465,7 +1465,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23) const
         {
             typedef
@@ -1491,7 +1491,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23) const
         {
             typedef
@@ -1532,7 +1532,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24) const
         {
             typedef
@@ -1558,7 +1558,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24) const
         {
             typedef
@@ -1599,7 +1599,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25) const
         {
             typedef
@@ -1625,7 +1625,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25) const
         {
             typedef
@@ -1666,7 +1666,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26) const
         {
             typedef
@@ -1692,7 +1692,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26) const
         {
             typedef
@@ -1733,7 +1733,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27) const
         {
             typedef
@@ -1759,7 +1759,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27) const
         {
             typedef
@@ -1800,7 +1800,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28) const
         {
             typedef
@@ -1826,7 +1826,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28) const
         {
             typedef
@@ -1867,7 +1867,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29) const
         {
             typedef
@@ -1893,7 +1893,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29) const
         {
             typedef
@@ -1934,7 +1934,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30) const
         {
             typedef
@@ -1960,7 +1960,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30) const
         {
             typedef
@@ -2001,7 +2001,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31) const
         {
             typedef
@@ -2027,7 +2027,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31) const
         {
             typedef
@@ -2068,7 +2068,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32) const
         {
             typedef
@@ -2094,7 +2094,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32) const
         {
             typedef
@@ -2135,7 +2135,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33) const
         {
             typedef
@@ -2161,7 +2161,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33) const
         {
             typedef
@@ -2202,7 +2202,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34) const
         {
             typedef
@@ -2228,7 +2228,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34) const
         {
             typedef
@@ -2269,7 +2269,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35) const
         {
             typedef
@@ -2295,7 +2295,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35) const
         {
             typedef
@@ -2336,7 +2336,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36) const
         {
             typedef
@@ -2362,7 +2362,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36) const
         {
             typedef
@@ -2403,7 +2403,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37) const
         {
             typedef
@@ -2429,7 +2429,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37) const
         {
             typedef
@@ -2470,7 +2470,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38) const
         {
             typedef
@@ -2496,7 +2496,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38) const
         {
             typedef
@@ -2537,7 +2537,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39) const
         {
             typedef
@@ -2563,7 +2563,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39) const
         {
             typedef
diff --git a/include/boost/phoenix/core/detail/preprocessed/actor_operator_50.hpp b/include/boost/phoenix/core/detail/preprocessed/actor_operator_50.hpp
index e7eca18..1daae35 100644
--- a/include/boost/phoenix/core/detail/preprocessed/actor_operator_50.hpp
+++ b/include/boost/phoenix/core/detail/preprocessed/actor_operator_50.hpp
@@ -58,7 +58,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2) const
         {
             typedef
@@ -84,7 +84,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2) const
         {
             typedef
@@ -125,7 +125,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3) const
         {
             typedef
@@ -151,7 +151,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3) const
         {
             typedef
@@ -192,7 +192,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4) const
         {
             typedef
@@ -218,7 +218,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4) const
         {
             typedef
@@ -259,7 +259,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5) const
         {
             typedef
@@ -285,7 +285,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5) const
         {
             typedef
@@ -326,7 +326,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6) const
         {
             typedef
@@ -352,7 +352,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6) const
         {
             typedef
@@ -393,7 +393,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7) const
         {
             typedef
@@ -419,7 +419,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7) const
         {
             typedef
@@ -460,7 +460,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8) const
         {
             typedef
@@ -486,7 +486,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8) const
         {
             typedef
@@ -527,7 +527,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9) const
         {
             typedef
@@ -553,7 +553,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9) const
         {
             typedef
@@ -594,7 +594,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10) const
         {
             typedef
@@ -620,7 +620,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10) const
         {
             typedef
@@ -661,7 +661,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11) const
         {
             typedef
@@ -687,7 +687,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11) const
         {
             typedef
@@ -728,7 +728,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12) const
         {
             typedef
@@ -754,7 +754,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12) const
         {
             typedef
@@ -795,7 +795,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13) const
         {
             typedef
@@ -821,7 +821,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13) const
         {
             typedef
@@ -862,7 +862,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14) const
         {
             typedef
@@ -888,7 +888,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14) const
         {
             typedef
@@ -929,7 +929,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15) const
         {
             typedef
@@ -955,7 +955,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15) const
         {
             typedef
@@ -996,7 +996,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16) const
         {
             typedef
@@ -1022,7 +1022,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16) const
         {
             typedef
@@ -1063,7 +1063,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17) const
         {
             typedef
@@ -1089,7 +1089,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17) const
         {
             typedef
@@ -1130,7 +1130,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18) const
         {
             typedef
@@ -1156,7 +1156,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18) const
         {
             typedef
@@ -1197,7 +1197,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19) const
         {
             typedef
@@ -1223,7 +1223,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19) const
         {
             typedef
@@ -1264,7 +1264,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20) const
         {
             typedef
@@ -1290,7 +1290,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20) const
         {
             typedef
@@ -1331,7 +1331,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21) const
         {
             typedef
@@ -1357,7 +1357,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21) const
         {
             typedef
@@ -1398,7 +1398,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22) const
         {
             typedef
@@ -1424,7 +1424,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22) const
         {
             typedef
@@ -1465,7 +1465,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23) const
         {
             typedef
@@ -1491,7 +1491,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23) const
         {
             typedef
@@ -1532,7 +1532,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24) const
         {
             typedef
@@ -1558,7 +1558,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24) const
         {
             typedef
@@ -1599,7 +1599,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25) const
         {
             typedef
@@ -1625,7 +1625,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25) const
         {
             typedef
@@ -1666,7 +1666,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26) const
         {
             typedef
@@ -1692,7 +1692,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26) const
         {
             typedef
@@ -1733,7 +1733,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27) const
         {
             typedef
@@ -1759,7 +1759,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27) const
         {
             typedef
@@ -1800,7 +1800,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28) const
         {
             typedef
@@ -1826,7 +1826,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28) const
         {
             typedef
@@ -1867,7 +1867,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29) const
         {
             typedef
@@ -1893,7 +1893,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29) const
         {
             typedef
@@ -1934,7 +1934,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30) const
         {
             typedef
@@ -1960,7 +1960,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30) const
         {
             typedef
@@ -2001,7 +2001,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31) const
         {
             typedef
@@ -2027,7 +2027,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31) const
         {
             typedef
@@ -2068,7 +2068,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32) const
         {
             typedef
@@ -2094,7 +2094,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32) const
         {
             typedef
@@ -2135,7 +2135,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33) const
         {
             typedef
@@ -2161,7 +2161,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33) const
         {
             typedef
@@ -2202,7 +2202,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34) const
         {
             typedef
@@ -2228,7 +2228,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34) const
         {
             typedef
@@ -2269,7 +2269,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35) const
         {
             typedef
@@ -2295,7 +2295,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35) const
         {
             typedef
@@ -2336,7 +2336,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36) const
         {
             typedef
@@ -2362,7 +2362,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36) const
         {
             typedef
@@ -2403,7 +2403,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37) const
         {
             typedef
@@ -2429,7 +2429,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37) const
         {
             typedef
@@ -2470,7 +2470,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38) const
         {
             typedef
@@ -2496,7 +2496,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38) const
         {
             typedef
@@ -2537,7 +2537,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39) const
         {
             typedef
@@ -2563,7 +2563,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39) const
         {
             typedef
@@ -2604,7 +2604,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40) const
         {
             typedef
@@ -2630,7 +2630,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40) const
         {
             typedef
@@ -2671,7 +2671,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41) const
         {
             typedef
@@ -2697,7 +2697,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41) const
         {
             typedef
@@ -2738,7 +2738,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42) const
         {
             typedef
@@ -2764,7 +2764,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42) const
         {
             typedef
@@ -2805,7 +2805,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42 , A43 & a43) const
         {
             typedef
@@ -2831,7 +2831,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43) const
         {
             typedef
@@ -2872,7 +2872,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42 , A43 & a43 , A44 & a44) const
         {
             typedef
@@ -2898,7 +2898,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44) const
         {
             typedef
@@ -2939,7 +2939,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42 , A43 & a43 , A44 & a44 , A45 & a45) const
         {
             typedef
@@ -2965,7 +2965,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45) const
         {
             typedef
@@ -3006,7 +3006,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42 , A43 & a43 , A44 & a44 , A45 & a45 , A46 & a46) const
         {
             typedef
@@ -3032,7 +3032,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46) const
         {
             typedef
@@ -3073,7 +3073,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46 , typename A47>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 & , A47 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 & , A47 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42 , A43 & a43 , A44 & a44 , A45 & a45 , A46 & a46 , A47 & a47) const
         {
             typedef
@@ -3099,7 +3099,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46 , typename A47>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const& , A47 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const& , A47 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47) const
         {
             typedef
@@ -3140,7 +3140,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46 , typename A47 , typename A48>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 & , A47 & , A48 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 & , A47 & , A48 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42 , A43 & a43 , A44 & a44 , A45 & a45 , A46 & a46 , A47 & a47 , A48 & a48) const
         {
             typedef
@@ -3166,7 +3166,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46 , typename A47 , typename A48>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const& , A47 const& , A48 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const& , A47 const& , A48 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47 , A48 const& a48) const
         {
             typedef
@@ -3207,7 +3207,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46 , typename A47 , typename A48 , typename A49>
-        typename result_of::actor<proto_base_expr const, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 & , A47 & , A48 & , A49 &>::type
+        typename result_of::actor<proto_base_expr, A0 & , A1 & , A2 & , A3 & , A4 & , A5 & , A6 & , A7 & , A8 & , A9 & , A10 & , A11 & , A12 & , A13 & , A14 & , A15 & , A16 & , A17 & , A18 & , A19 & , A20 & , A21 & , A22 & , A23 & , A24 & , A25 & , A26 & , A27 & , A28 & , A29 & , A30 & , A31 & , A32 & , A33 & , A34 & , A35 & , A36 & , A37 & , A38 & , A39 & , A40 & , A41 & , A42 & , A43 & , A44 & , A45 & , A46 & , A47 & , A48 & , A49 &>::type
         operator()(A0 & a0 , A1 & a1 , A2 & a2 , A3 & a3 , A4 & a4 , A5 & a5 , A6 & a6 , A7 & a7 , A8 & a8 , A9 & a9 , A10 & a10 , A11 & a11 , A12 & a12 , A13 & a13 , A14 & a14 , A15 & a15 , A16 & a16 , A17 & a17 , A18 & a18 , A19 & a19 , A20 & a20 , A21 & a21 , A22 & a22 , A23 & a23 , A24 & a24 , A25 & a25 , A26 & a26 , A27 & a27 , A28 & a28 , A29 & a29 , A30 & a30 , A31 & a31 , A32 & a32 , A33 & a33 , A34 & a34 , A35 & a35 , A36 & a36 , A37 & a37 , A38 & a38 , A39 & a39 , A40 & a40 , A41 & a41 , A42 & a42 , A43 & a43 , A44 & a44 , A45 & a45 , A46 & a46 , A47 & a47 , A48 & a48 , A49 & a49) const
         {
             typedef
@@ -3233,7 +3233,7 @@
             return phoenix::eval(*this, phoenix::context(env, default_actions()));
         }
         template <typename A0 , typename A1 , typename A2 , typename A3 , typename A4 , typename A5 , typename A6 , typename A7 , typename A8 , typename A9 , typename A10 , typename A11 , typename A12 , typename A13 , typename A14 , typename A15 , typename A16 , typename A17 , typename A18 , typename A19 , typename A20 , typename A21 , typename A22 , typename A23 , typename A24 , typename A25 , typename A26 , typename A27 , typename A28 , typename A29 , typename A30 , typename A31 , typename A32 , typename A33 , typename A34 , typename A35 , typename A36 , typename A37 , typename A38 , typename A39 , typename A40 , typename A41 , typename A42 , typename A43 , typename A44 , typename A45 , typename A46 , typename A47 , typename A48 , typename A49>
-        typename result_of::actor<proto_base_expr const, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const& , A47 const& , A48 const& , A49 const&>::type
+        typename result_of::actor<proto_base_expr, A0 const& , A1 const& , A2 const& , A3 const& , A4 const& , A5 const& , A6 const& , A7 const& , A8 const& , A9 const& , A10 const& , A11 const& , A12 const& , A13 const& , A14 const& , A15 const& , A16 const& , A17 const& , A18 const& , A19 const& , A20 const& , A21 const& , A22 const& , A23 const& , A24 const& , A25 const& , A26 const& , A27 const& , A28 const& , A29 const& , A30 const& , A31 const& , A32 const& , A33 const& , A34 const& , A35 const& , A36 const& , A37 const& , A38 const& , A39 const& , A40 const& , A41 const& , A42 const& , A43 const& , A44 const& , A45 const& , A46 const& , A47 const& , A48 const& , A49 const&>::type
         operator()(A0 const& a0 , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47 , A48 const& a48 , A49 const& a49) const
         {
             typedef
diff --git a/include/boost/phoenix/core/visit_each.hpp b/include/boost/phoenix/core/visit_each.hpp
index 3c7e39a..ad4ca14 100644
--- a/include/boost/phoenix/core/visit_each.hpp
+++ b/include/boost/phoenix/core/visit_each.hpp
@@ -27,6 +27,7 @@ namespace boost { namespace phoenix
             template <typename T>
             void operator()(T const& t) const
             {
+                using boost::visit_each;
                 visit_each(visitor, t);
             }
         };
@@ -37,6 +38,12 @@ namespace boost { namespace phoenix
     {
         fusion::for_each(a, detail::visit_each_impl<Visitor>(visitor));
     }
+
+    template <typename Visitor, typename Expr>
+    inline void visit_each(Visitor& visitor, actor<Expr> const& a)
+    {
+        fusion::for_each(a, detail::visit_each_impl<Visitor>(visitor));
+    }
 }}
 
 #endif
diff --git a/include/boost/phoenix/object/construct.hpp b/include/boost/phoenix/object/construct.hpp
index a7db8bb..eaa419a 100644
--- a/include/boost/phoenix/object/construct.hpp
+++ b/include/boost/phoenix/object/construct.hpp
@@ -38,7 +38,7 @@ namespace boost { namespace phoenix
 
         template <typename Target, typename Context>
         typename detail::result_of::target<Target>::type
-        operator()(Target, Context &) const
+        operator()(Target, Context const &) const
         {
             return typename detail::result_of::target<Target>::type();
         }
diff --git a/include/boost/phoenix/object/detail/construct_eval.hpp b/include/boost/phoenix/object/detail/construct_eval.hpp
index f54b827..d563119 100644
--- a/include/boost/phoenix/object/detail/construct_eval.hpp
+++ b/include/boost/phoenix/object/detail/construct_eval.hpp
@@ -59,7 +59,7 @@
               , A
               , const& a
             )
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
 #define EVAL_a(_,n,__) \
diff --git a/include/boost/phoenix/object/detail/new_eval.hpp b/include/boost/phoenix/object/detail/new_eval.hpp
index 3b8ad62..e404a1b 100644
--- a/include/boost/phoenix/object/detail/new_eval.hpp
+++ b/include/boost/phoenix/object/detail/new_eval.hpp
@@ -65,7 +65,7 @@
               , A
               , const& a
             )
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
 #define EVAL_a(_,n,__) \
diff --git a/include/boost/phoenix/object/detail/preprocessed/construct_eval_10.hpp b/include/boost/phoenix/object/detail/preprocessed/construct_eval_10.hpp
index 9484bd1..19d91bc 100644
--- a/include/boost/phoenix/object/detail/preprocessed/construct_eval_10.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/construct_eval_10.hpp
@@ -23,7 +23,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -49,7 +49,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -75,7 +75,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -101,7 +101,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -153,7 +153,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -179,7 +179,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -205,7 +205,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -231,7 +231,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/construct_eval_20.hpp b/include/boost/phoenix/object/detail/preprocessed/construct_eval_20.hpp
index f9afa6d..a3bd8d6 100644
--- a/include/boost/phoenix/object/detail/preprocessed/construct_eval_20.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/construct_eval_20.hpp
@@ -23,7 +23,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -49,7 +49,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -75,7 +75,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -101,7 +101,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -153,7 +153,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -179,7 +179,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -205,7 +205,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -231,7 +231,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -257,7 +257,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -283,7 +283,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -309,7 +309,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -335,7 +335,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -361,7 +361,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -387,7 +387,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -413,7 +413,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -439,7 +439,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -465,7 +465,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -491,7 +491,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/construct_eval_30.hpp b/include/boost/phoenix/object/detail/preprocessed/construct_eval_30.hpp
index 9f5fbcd..1289ebe 100644
--- a/include/boost/phoenix/object/detail/preprocessed/construct_eval_30.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/construct_eval_30.hpp
@@ -23,7 +23,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -49,7 +49,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -75,7 +75,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -101,7 +101,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -153,7 +153,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -179,7 +179,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -205,7 +205,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -231,7 +231,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -257,7 +257,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -283,7 +283,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -309,7 +309,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -335,7 +335,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -361,7 +361,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -387,7 +387,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -413,7 +413,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -439,7 +439,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -465,7 +465,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -491,7 +491,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -517,7 +517,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -543,7 +543,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -569,7 +569,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -595,7 +595,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -621,7 +621,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -647,7 +647,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -673,7 +673,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -699,7 +699,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -725,7 +725,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -751,7 +751,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/construct_eval_40.hpp b/include/boost/phoenix/object/detail/preprocessed/construct_eval_40.hpp
index d569abe..824f5ab 100644
--- a/include/boost/phoenix/object/detail/preprocessed/construct_eval_40.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/construct_eval_40.hpp
@@ -23,7 +23,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -49,7 +49,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -75,7 +75,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -101,7 +101,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -153,7 +153,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -179,7 +179,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -205,7 +205,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -231,7 +231,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -257,7 +257,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -283,7 +283,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -309,7 +309,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -335,7 +335,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -361,7 +361,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -387,7 +387,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -413,7 +413,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -439,7 +439,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -465,7 +465,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -491,7 +491,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -517,7 +517,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -543,7 +543,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -569,7 +569,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -595,7 +595,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -621,7 +621,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -647,7 +647,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -673,7 +673,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -699,7 +699,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -725,7 +725,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -751,7 +751,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -777,7 +777,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -803,7 +803,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -829,7 +829,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -855,7 +855,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -881,7 +881,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -907,7 +907,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -933,7 +933,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -959,7 +959,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -985,7 +985,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1011,7 +1011,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/construct_eval_50.hpp b/include/boost/phoenix/object/detail/preprocessed/construct_eval_50.hpp
index cbdf4e8..69b660c 100644
--- a/include/boost/phoenix/object/detail/preprocessed/construct_eval_50.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/construct_eval_50.hpp
@@ -23,7 +23,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -49,7 +49,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -75,7 +75,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -101,7 +101,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -153,7 +153,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -179,7 +179,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -205,7 +205,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -231,7 +231,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -257,7 +257,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -283,7 +283,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -309,7 +309,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -335,7 +335,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -361,7 +361,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -387,7 +387,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -413,7 +413,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -439,7 +439,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -465,7 +465,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -491,7 +491,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -517,7 +517,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -543,7 +543,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -569,7 +569,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -595,7 +595,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -621,7 +621,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -647,7 +647,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -673,7 +673,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -699,7 +699,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -725,7 +725,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -751,7 +751,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -777,7 +777,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -803,7 +803,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -829,7 +829,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -855,7 +855,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -881,7 +881,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -907,7 +907,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -933,7 +933,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -959,7 +959,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -985,7 +985,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1011,7 +1011,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1037,7 +1037,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1063,7 +1063,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1089,7 +1089,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1115,7 +1115,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1141,7 +1141,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1167,7 +1167,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1193,7 +1193,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1219,7 +1219,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1245,7 +1245,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47 , A48 const& a48
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1271,7 +1271,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47 , A48 const& a48 , A49 const& a49
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/new_eval_10.hpp b/include/boost/phoenix/object/detail/preprocessed/new_eval_10.hpp
index 2f818be..1862eb9 100644
--- a/include/boost/phoenix/object/detail/preprocessed/new_eval_10.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/new_eval_10.hpp
@@ -28,7 +28,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -61,7 +61,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -94,7 +94,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -160,7 +160,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -193,7 +193,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -226,7 +226,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -259,7 +259,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -292,7 +292,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/new_eval_20.hpp b/include/boost/phoenix/object/detail/preprocessed/new_eval_20.hpp
index e1ac84e..2555bdb 100644
--- a/include/boost/phoenix/object/detail/preprocessed/new_eval_20.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/new_eval_20.hpp
@@ -28,7 +28,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -61,7 +61,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -94,7 +94,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -160,7 +160,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -193,7 +193,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -226,7 +226,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -259,7 +259,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -292,7 +292,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -325,7 +325,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -358,7 +358,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -391,7 +391,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -424,7 +424,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -457,7 +457,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -490,7 +490,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -523,7 +523,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -556,7 +556,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -589,7 +589,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -622,7 +622,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/new_eval_30.hpp b/include/boost/phoenix/object/detail/preprocessed/new_eval_30.hpp
index a095c2c..9e0d438 100644
--- a/include/boost/phoenix/object/detail/preprocessed/new_eval_30.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/new_eval_30.hpp
@@ -28,7 +28,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -61,7 +61,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -94,7 +94,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -160,7 +160,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -193,7 +193,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -226,7 +226,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -259,7 +259,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -292,7 +292,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -325,7 +325,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -358,7 +358,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -391,7 +391,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -424,7 +424,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -457,7 +457,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -490,7 +490,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -523,7 +523,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -556,7 +556,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -589,7 +589,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -622,7 +622,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -655,7 +655,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -688,7 +688,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -721,7 +721,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -754,7 +754,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -787,7 +787,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -820,7 +820,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -853,7 +853,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -886,7 +886,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -919,7 +919,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -952,7 +952,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/new_eval_40.hpp b/include/boost/phoenix/object/detail/preprocessed/new_eval_40.hpp
index 0abdd48..7cb8ea6 100644
--- a/include/boost/phoenix/object/detail/preprocessed/new_eval_40.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/new_eval_40.hpp
@@ -28,7 +28,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -61,7 +61,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -94,7 +94,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -160,7 +160,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -193,7 +193,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -226,7 +226,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -259,7 +259,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -292,7 +292,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -325,7 +325,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -358,7 +358,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -391,7 +391,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -424,7 +424,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -457,7 +457,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -490,7 +490,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -523,7 +523,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -556,7 +556,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -589,7 +589,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -622,7 +622,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -655,7 +655,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -688,7 +688,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -721,7 +721,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -754,7 +754,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -787,7 +787,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -820,7 +820,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -853,7 +853,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -886,7 +886,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -919,7 +919,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -952,7 +952,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -985,7 +985,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1018,7 +1018,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1051,7 +1051,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1084,7 +1084,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1117,7 +1117,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1150,7 +1150,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1183,7 +1183,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1216,7 +1216,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1249,7 +1249,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1282,7 +1282,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/detail/preprocessed/new_eval_50.hpp b/include/boost/phoenix/object/detail/preprocessed/new_eval_50.hpp
index bf4d367..fb465bc 100644
--- a/include/boost/phoenix/object/detail/preprocessed/new_eval_50.hpp
+++ b/include/boost/phoenix/object/detail/preprocessed/new_eval_50.hpp
@@ -28,7 +28,7 @@
         operator()(
             A0 const&
           , A1 const& a1
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -61,7 +61,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -94,7 +94,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -127,7 +127,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -160,7 +160,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -193,7 +193,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -226,7 +226,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -259,7 +259,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -292,7 +292,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -325,7 +325,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -358,7 +358,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -391,7 +391,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -424,7 +424,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -457,7 +457,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -490,7 +490,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -523,7 +523,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -556,7 +556,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -589,7 +589,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -622,7 +622,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -655,7 +655,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -688,7 +688,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -721,7 +721,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -754,7 +754,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -787,7 +787,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -820,7 +820,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -853,7 +853,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -886,7 +886,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -919,7 +919,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -952,7 +952,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -985,7 +985,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1018,7 +1018,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1051,7 +1051,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1084,7 +1084,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1117,7 +1117,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1150,7 +1150,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1183,7 +1183,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1216,7 +1216,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1249,7 +1249,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1282,7 +1282,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1315,7 +1315,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1348,7 +1348,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1381,7 +1381,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1414,7 +1414,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1447,7 +1447,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1480,7 +1480,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1513,7 +1513,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1546,7 +1546,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1579,7 +1579,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47 , A48 const& a48
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
@@ -1612,7 +1612,7 @@
         operator()(
             A0 const&
           , A1 const& a1 , A2 const& a2 , A3 const& a3 , A4 const& a4 , A5 const& a5 , A6 const& a6 , A7 const& a7 , A8 const& a8 , A9 const& a9 , A10 const& a10 , A11 const& a11 , A12 const& a12 , A13 const& a13 , A14 const& a14 , A15 const& a15 , A16 const& a16 , A17 const& a17 , A18 const& a18 , A19 const& a19 , A20 const& a20 , A21 const& a21 , A22 const& a22 , A23 const& a23 , A24 const& a24 , A25 const& a25 , A26 const& a26 , A27 const& a27 , A28 const& a28 , A29 const& a29 , A30 const& a30 , A31 const& a31 , A32 const& a32 , A33 const& a33 , A34 const& a34 , A35 const& a35 , A36 const& a36 , A37 const& a37 , A38 const& a38 , A39 const& a39 , A40 const& a40 , A41 const& a41 , A42 const& a42 , A43 const& a43 , A44 const& a44 , A45 const& a45 , A46 const& a46 , A47 const& a47 , A48 const& a48 , A49 const& a49
-          , Context & ctx
+          , Context const & ctx
         ) const
         {
             return
diff --git a/include/boost/phoenix/object/new.hpp b/include/boost/phoenix/object/new.hpp
index d02df20..a2ec810 100644
--- a/include/boost/phoenix/object/new.hpp
+++ b/include/boost/phoenix/object/new.hpp
@@ -39,7 +39,7 @@ namespace boost { namespace phoenix
 
         template <typename Target, typename Context>
         typename detail::result_of::target<Target>::type *
-        operator()(Target, Context &) const
+        operator()(Target, Context const &) const
         {
             return new typename detail::result_of::target<Target>::type;
         }
diff --git a/include/boost/phoenix/operator.hpp b/include/boost/phoenix/operator.hpp
index 297437c..c1e2688 100644
--- a/include/boost/phoenix/operator.hpp
+++ b/include/boost/phoenix/operator.hpp
@@ -12,7 +12,7 @@
 #include <boost/phoenix/version.hpp>
 #include <boost/phoenix/operator/arithmetic.hpp>
 #include <boost/phoenix/operator/bitwise.hpp>
-#include <boost/phoenix/operator/comparision.hpp>
+#include <boost/phoenix/operator/comparison.hpp>
 #include <boost/phoenix/operator/if_else.hpp>
 #include <boost/phoenix/operator/self.hpp>
 #include <boost/phoenix/operator/logical.hpp>
diff --git a/include/boost/phoenix/operator/comparision.hpp b/include/boost/phoenix/operator/comparison.hpp
similarity index 91%
rename from include/boost/phoenix/operator/comparision.hpp
rename to include/boost/phoenix/operator/comparison.hpp
index 0a4a1c5..987c5a7 100644
--- a/include/boost/phoenix/operator/comparision.hpp
+++ b/include/boost/phoenix/operator/comparison.hpp
@@ -5,8 +5,8 @@
     Distributed under the Boost Software License, Version 1.0. (See accompanying
     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 ==============================================================================*/
-#ifndef BOOST_PHOENIX_OPERATOR_COMPARISION_HPP
-#define BOOST_PHOENIX_OPERATOR_COMPARISION_HPP
+#ifndef BOOST_PHOENIX_OPERATOR_COMPARISON_HPP
+#define BOOST_PHOENIX_OPERATOR_COMPARISON_HPP
 
 #include <boost/phoenix/operator/detail/define_operator.hpp>
 #include <boost/phoenix/core/expression.hpp>
@@ -14,7 +14,6 @@
 
 namespace boost { namespace phoenix
 {
-    
     BOOST_PHOENIX_BINARY_OPERATORS(
         (equal_to)
         (not_equal_to)
diff --git a/include/boost/phoenix/scope/detail/dynamic.hpp b/include/boost/phoenix/scope/detail/dynamic.hpp
index b57dd3e..ed571e1 100644
--- a/include/boost/phoenix/scope/detail/dynamic.hpp
+++ b/include/boost/phoenix/scope/detail/dynamic.hpp
@@ -38,7 +38,7 @@
             typename expression::dynamic_member<                                \
                 mpl::int_<N>                                                    \
               , self_type *                                                     \
-            >::type                                                             \
+            >::type const                                                       \
             BOOST_PP_CAT(member, BOOST_PP_INC(N));                              \
 /**/
 
@@ -75,7 +75,7 @@
 
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
diff --git a/include/boost/phoenix/scope/detail/preprocessed/dynamic_10.hpp b/include/boost/phoenix/scope/detail/preprocessed/dynamic_10.hpp
index f1428ee..1dd8506 100644
--- a/include/boost/phoenix/scope/detail/preprocessed/dynamic_10.hpp
+++ b/include/boost/phoenix/scope/detail/preprocessed/dynamic_10.hpp
@@ -28,7 +28,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -36,7 +36,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1;
         mutable dynamic_frame_type* frame;
     };
     
@@ -62,7 +62,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -70,7 +70,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2;
         mutable dynamic_frame_type* frame;
     };
     
@@ -96,7 +96,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -104,7 +104,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3;
         mutable dynamic_frame_type* frame;
     };
     
@@ -130,7 +130,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -138,7 +138,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4;
         mutable dynamic_frame_type* frame;
     };
     
@@ -164,7 +164,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -172,7 +172,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5;
         mutable dynamic_frame_type* frame;
     };
     
@@ -198,7 +198,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -206,7 +206,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6;
         mutable dynamic_frame_type* frame;
     };
     
@@ -232,7 +232,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -240,7 +240,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7;
         mutable dynamic_frame_type* frame;
     };
     
@@ -266,7 +266,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -274,7 +274,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8;
         mutable dynamic_frame_type* frame;
     };
     
@@ -300,7 +300,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -308,7 +308,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9;
         mutable dynamic_frame_type* frame;
     };
     
@@ -334,7 +334,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -342,6 +342,6 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10;
         mutable dynamic_frame_type* frame;
     };
diff --git a/include/boost/phoenix/scope/detail/preprocessed/dynamic_20.hpp b/include/boost/phoenix/scope/detail/preprocessed/dynamic_20.hpp
index 40ad8c4..2a3d56e 100644
--- a/include/boost/phoenix/scope/detail/preprocessed/dynamic_20.hpp
+++ b/include/boost/phoenix/scope/detail/preprocessed/dynamic_20.hpp
@@ -28,7 +28,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -36,7 +36,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1;
         mutable dynamic_frame_type* frame;
     };
     
@@ -62,7 +62,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -70,7 +70,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2;
         mutable dynamic_frame_type* frame;
     };
     
@@ -96,7 +96,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -104,7 +104,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3;
         mutable dynamic_frame_type* frame;
     };
     
@@ -130,7 +130,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -138,7 +138,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4;
         mutable dynamic_frame_type* frame;
     };
     
@@ -164,7 +164,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -172,7 +172,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5;
         mutable dynamic_frame_type* frame;
     };
     
@@ -198,7 +198,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -206,7 +206,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6;
         mutable dynamic_frame_type* frame;
     };
     
@@ -232,7 +232,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -240,7 +240,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7;
         mutable dynamic_frame_type* frame;
     };
     
@@ -266,7 +266,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -274,7 +274,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8;
         mutable dynamic_frame_type* frame;
     };
     
@@ -300,7 +300,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -308,7 +308,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9;
         mutable dynamic_frame_type* frame;
     };
     
@@ -334,7 +334,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -342,7 +342,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10;
         mutable dynamic_frame_type* frame;
     };
     
@@ -368,7 +368,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -376,7 +376,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11;
         mutable dynamic_frame_type* frame;
     };
     
@@ -402,7 +402,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -410,7 +410,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12;
         mutable dynamic_frame_type* frame;
     };
     
@@ -436,7 +436,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -444,7 +444,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13;
         mutable dynamic_frame_type* frame;
     };
     
@@ -470,7 +470,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -478,7 +478,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14;
         mutable dynamic_frame_type* frame;
     };
     
@@ -504,7 +504,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -512,7 +512,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15;
         mutable dynamic_frame_type* frame;
     };
     
@@ -538,7 +538,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -546,7 +546,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16;
         mutable dynamic_frame_type* frame;
     };
     
@@ -572,7 +572,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -580,7 +580,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17;
         mutable dynamic_frame_type* frame;
     };
     
@@ -606,7 +606,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -614,7 +614,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18;
         mutable dynamic_frame_type* frame;
     };
     
@@ -640,7 +640,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -648,7 +648,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19;
         mutable dynamic_frame_type* frame;
     };
     
@@ -674,7 +674,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -682,6 +682,6 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20;
         mutable dynamic_frame_type* frame;
     };
diff --git a/include/boost/phoenix/scope/detail/preprocessed/dynamic_30.hpp b/include/boost/phoenix/scope/detail/preprocessed/dynamic_30.hpp
index c3d2b91..24b2ba2 100644
--- a/include/boost/phoenix/scope/detail/preprocessed/dynamic_30.hpp
+++ b/include/boost/phoenix/scope/detail/preprocessed/dynamic_30.hpp
@@ -28,7 +28,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -36,7 +36,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1;
         mutable dynamic_frame_type* frame;
     };
     
@@ -62,7 +62,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -70,7 +70,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2;
         mutable dynamic_frame_type* frame;
     };
     
@@ -96,7 +96,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -104,7 +104,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3;
         mutable dynamic_frame_type* frame;
     };
     
@@ -130,7 +130,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -138,7 +138,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4;
         mutable dynamic_frame_type* frame;
     };
     
@@ -164,7 +164,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -172,7 +172,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5;
         mutable dynamic_frame_type* frame;
     };
     
@@ -198,7 +198,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -206,7 +206,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6;
         mutable dynamic_frame_type* frame;
     };
     
@@ -232,7 +232,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -240,7 +240,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7;
         mutable dynamic_frame_type* frame;
     };
     
@@ -266,7 +266,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -274,7 +274,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8;
         mutable dynamic_frame_type* frame;
     };
     
@@ -300,7 +300,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -308,7 +308,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9;
         mutable dynamic_frame_type* frame;
     };
     
@@ -334,7 +334,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -342,7 +342,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10;
         mutable dynamic_frame_type* frame;
     };
     
@@ -368,7 +368,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -376,7 +376,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11;
         mutable dynamic_frame_type* frame;
     };
     
@@ -402,7 +402,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -410,7 +410,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12;
         mutable dynamic_frame_type* frame;
     };
     
@@ -436,7 +436,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -444,7 +444,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13;
         mutable dynamic_frame_type* frame;
     };
     
@@ -470,7 +470,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -478,7 +478,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14;
         mutable dynamic_frame_type* frame;
     };
     
@@ -504,7 +504,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -512,7 +512,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15;
         mutable dynamic_frame_type* frame;
     };
     
@@ -538,7 +538,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -546,7 +546,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16;
         mutable dynamic_frame_type* frame;
     };
     
@@ -572,7 +572,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -580,7 +580,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17;
         mutable dynamic_frame_type* frame;
     };
     
@@ -606,7 +606,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -614,7 +614,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18;
         mutable dynamic_frame_type* frame;
     };
     
@@ -640,7 +640,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -648,7 +648,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19;
         mutable dynamic_frame_type* frame;
     };
     
@@ -674,7 +674,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -682,7 +682,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20;
         mutable dynamic_frame_type* frame;
     };
     
@@ -708,7 +708,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -716,7 +716,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21;
         mutable dynamic_frame_type* frame;
     };
     
@@ -742,7 +742,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -750,7 +750,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22;
         mutable dynamic_frame_type* frame;
     };
     
@@ -776,7 +776,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -784,7 +784,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23;
         mutable dynamic_frame_type* frame;
     };
     
@@ -810,7 +810,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -818,7 +818,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24;
         mutable dynamic_frame_type* frame;
     };
     
@@ -844,7 +844,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -852,7 +852,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25;
         mutable dynamic_frame_type* frame;
     };
     
@@ -878,7 +878,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -886,7 +886,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26;
         mutable dynamic_frame_type* frame;
     };
     
@@ -912,7 +912,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -920,7 +920,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27;
         mutable dynamic_frame_type* frame;
     };
     
@@ -946,7 +946,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -954,7 +954,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28;
         mutable dynamic_frame_type* frame;
     };
     
@@ -980,7 +980,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -988,7 +988,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1014,7 +1014,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1022,6 +1022,6 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30;
         mutable dynamic_frame_type* frame;
     };
diff --git a/include/boost/phoenix/scope/detail/preprocessed/dynamic_40.hpp b/include/boost/phoenix/scope/detail/preprocessed/dynamic_40.hpp
index 202a44d..0797778 100644
--- a/include/boost/phoenix/scope/detail/preprocessed/dynamic_40.hpp
+++ b/include/boost/phoenix/scope/detail/preprocessed/dynamic_40.hpp
@@ -28,7 +28,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -36,7 +36,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1;
         mutable dynamic_frame_type* frame;
     };
     
@@ -62,7 +62,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -70,7 +70,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2;
         mutable dynamic_frame_type* frame;
     };
     
@@ -96,7 +96,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -104,7 +104,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3;
         mutable dynamic_frame_type* frame;
     };
     
@@ -130,7 +130,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -138,7 +138,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4;
         mutable dynamic_frame_type* frame;
     };
     
@@ -164,7 +164,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -172,7 +172,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5;
         mutable dynamic_frame_type* frame;
     };
     
@@ -198,7 +198,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -206,7 +206,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6;
         mutable dynamic_frame_type* frame;
     };
     
@@ -232,7 +232,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -240,7 +240,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7;
         mutable dynamic_frame_type* frame;
     };
     
@@ -266,7 +266,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -274,7 +274,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8;
         mutable dynamic_frame_type* frame;
     };
     
@@ -300,7 +300,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -308,7 +308,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9;
         mutable dynamic_frame_type* frame;
     };
     
@@ -334,7 +334,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -342,7 +342,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10;
         mutable dynamic_frame_type* frame;
     };
     
@@ -368,7 +368,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -376,7 +376,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11;
         mutable dynamic_frame_type* frame;
     };
     
@@ -402,7 +402,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -410,7 +410,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12;
         mutable dynamic_frame_type* frame;
     };
     
@@ -436,7 +436,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -444,7 +444,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13;
         mutable dynamic_frame_type* frame;
     };
     
@@ -470,7 +470,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -478,7 +478,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14;
         mutable dynamic_frame_type* frame;
     };
     
@@ -504,7 +504,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -512,7 +512,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15;
         mutable dynamic_frame_type* frame;
     };
     
@@ -538,7 +538,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -546,7 +546,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16;
         mutable dynamic_frame_type* frame;
     };
     
@@ -572,7 +572,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -580,7 +580,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17;
         mutable dynamic_frame_type* frame;
     };
     
@@ -606,7 +606,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -614,7 +614,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18;
         mutable dynamic_frame_type* frame;
     };
     
@@ -640,7 +640,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -648,7 +648,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19;
         mutable dynamic_frame_type* frame;
     };
     
@@ -674,7 +674,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -682,7 +682,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20;
         mutable dynamic_frame_type* frame;
     };
     
@@ -708,7 +708,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -716,7 +716,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21;
         mutable dynamic_frame_type* frame;
     };
     
@@ -742,7 +742,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -750,7 +750,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22;
         mutable dynamic_frame_type* frame;
     };
     
@@ -776,7 +776,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -784,7 +784,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23;
         mutable dynamic_frame_type* frame;
     };
     
@@ -810,7 +810,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -818,7 +818,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24;
         mutable dynamic_frame_type* frame;
     };
     
@@ -844,7 +844,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -852,7 +852,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25;
         mutable dynamic_frame_type* frame;
     };
     
@@ -878,7 +878,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -886,7 +886,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26;
         mutable dynamic_frame_type* frame;
     };
     
@@ -912,7 +912,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -920,7 +920,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27;
         mutable dynamic_frame_type* frame;
     };
     
@@ -946,7 +946,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -954,7 +954,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28;
         mutable dynamic_frame_type* frame;
     };
     
@@ -980,7 +980,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -988,7 +988,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1014,7 +1014,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1022,7 +1022,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1048,7 +1048,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1056,7 +1056,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1082,7 +1082,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1090,7 +1090,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1116,7 +1116,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1124,7 +1124,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1150,7 +1150,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1158,7 +1158,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1184,7 +1184,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1192,7 +1192,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1218,7 +1218,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1226,7 +1226,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1252,7 +1252,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1260,7 +1260,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1286,7 +1286,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1294,7 +1294,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1320,7 +1320,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1328,7 +1328,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1354,7 +1354,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1362,6 +1362,6 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40;
         mutable dynamic_frame_type* frame;
     };
diff --git a/include/boost/phoenix/scope/detail/preprocessed/dynamic_50.hpp b/include/boost/phoenix/scope/detail/preprocessed/dynamic_50.hpp
index 6fd09f7..06ad4b2 100644
--- a/include/boost/phoenix/scope/detail/preprocessed/dynamic_50.hpp
+++ b/include/boost/phoenix/scope/detail/preprocessed/dynamic_50.hpp
@@ -28,7 +28,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -36,7 +36,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1;
         mutable dynamic_frame_type* frame;
     };
     
@@ -62,7 +62,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -70,7 +70,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2;
         mutable dynamic_frame_type* frame;
     };
     
@@ -96,7 +96,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -104,7 +104,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3;
         mutable dynamic_frame_type* frame;
     };
     
@@ -130,7 +130,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -138,7 +138,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4;
         mutable dynamic_frame_type* frame;
     };
     
@@ -164,7 +164,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -172,7 +172,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5;
         mutable dynamic_frame_type* frame;
     };
     
@@ -198,7 +198,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -206,7 +206,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6;
         mutable dynamic_frame_type* frame;
     };
     
@@ -232,7 +232,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -240,7 +240,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7;
         mutable dynamic_frame_type* frame;
     };
     
@@ -266,7 +266,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -274,7 +274,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8;
         mutable dynamic_frame_type* frame;
     };
     
@@ -300,7 +300,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -308,7 +308,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9;
         mutable dynamic_frame_type* frame;
     };
     
@@ -334,7 +334,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -342,7 +342,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10;
         mutable dynamic_frame_type* frame;
     };
     
@@ -368,7 +368,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -376,7 +376,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11;
         mutable dynamic_frame_type* frame;
     };
     
@@ -402,7 +402,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -410,7 +410,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12;
         mutable dynamic_frame_type* frame;
     };
     
@@ -436,7 +436,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -444,7 +444,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13;
         mutable dynamic_frame_type* frame;
     };
     
@@ -470,7 +470,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -478,7 +478,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14;
         mutable dynamic_frame_type* frame;
     };
     
@@ -504,7 +504,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -512,7 +512,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15;
         mutable dynamic_frame_type* frame;
     };
     
@@ -538,7 +538,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -546,7 +546,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16;
         mutable dynamic_frame_type* frame;
     };
     
@@ -572,7 +572,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -580,7 +580,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17;
         mutable dynamic_frame_type* frame;
     };
     
@@ -606,7 +606,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -614,7 +614,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18;
         mutable dynamic_frame_type* frame;
     };
     
@@ -640,7 +640,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -648,7 +648,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19;
         mutable dynamic_frame_type* frame;
     };
     
@@ -674,7 +674,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -682,7 +682,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20;
         mutable dynamic_frame_type* frame;
     };
     
@@ -708,7 +708,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -716,7 +716,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21;
         mutable dynamic_frame_type* frame;
     };
     
@@ -742,7 +742,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -750,7 +750,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22;
         mutable dynamic_frame_type* frame;
     };
     
@@ -776,7 +776,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -784,7 +784,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23;
         mutable dynamic_frame_type* frame;
     };
     
@@ -810,7 +810,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -818,7 +818,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24;
         mutable dynamic_frame_type* frame;
     };
     
@@ -844,7 +844,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -852,7 +852,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25;
         mutable dynamic_frame_type* frame;
     };
     
@@ -878,7 +878,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -886,7 +886,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26;
         mutable dynamic_frame_type* frame;
     };
     
@@ -912,7 +912,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -920,7 +920,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27;
         mutable dynamic_frame_type* frame;
     };
     
@@ -946,7 +946,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -954,7 +954,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28;
         mutable dynamic_frame_type* frame;
     };
     
@@ -980,7 +980,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -988,7 +988,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1014,7 +1014,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1022,7 +1022,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1048,7 +1048,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1056,7 +1056,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1082,7 +1082,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1090,7 +1090,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1116,7 +1116,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1124,7 +1124,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1150,7 +1150,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1158,7 +1158,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1184,7 +1184,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1192,7 +1192,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1218,7 +1218,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1226,7 +1226,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1252,7 +1252,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1260,7 +1260,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1286,7 +1286,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1294,7 +1294,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1320,7 +1320,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1328,7 +1328,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1354,7 +1354,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1362,7 +1362,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1388,7 +1388,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1396,7 +1396,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1422,7 +1422,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1430,7 +1430,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1456,7 +1456,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1464,7 +1464,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1490,7 +1490,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1498,7 +1498,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type member44;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type const member44;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1524,7 +1524,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1532,7 +1532,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type member45;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type const member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type const member45;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1558,7 +1558,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1566,7 +1566,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type member46;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type const member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type const member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type const member46;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1592,7 +1592,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1600,7 +1600,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type member47;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type const member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type const member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type const member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type const member47;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1626,7 +1626,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1634,7 +1634,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type member47; typedef typename expression::dynamic_member< mpl::int_< 47> , self_type * >::type member48;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type const member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type const member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type const member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type const member47; typedef typename expression::dynamic_member< mpl::int_< 47> , self_type * >::type const member48;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1660,7 +1660,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1668,7 +1668,7 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type member47; typedef typename expression::dynamic_member< mpl::int_< 47> , self_type * >::type member48; typedef typename expression::dynamic_member< mpl::int_< 48> , self_type * >::type member49;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type const member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type const member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type const member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type const member47; typedef typename expression::dynamic_member< mpl::int_< 47> , self_type * >::type const member48; typedef typename expression::dynamic_member< mpl::int_< 48> , self_type * >::type const member49;
         mutable dynamic_frame_type* frame;
     };
     
@@ -1694,7 +1694,7 @@
             : frame(0) {}
         template <int N>
         static
-        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type
+        typename expression::dynamic_member<mpl::int_<N>, self_type *>::type const
         init(self_type * scope)
         {
             return
@@ -1702,6 +1702,6 @@
                     dynamic_member<mpl::int_<N>, self_type *>::
                         make(mpl::int_<N>(), scope);
         }
-        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type member47; typedef typename expression::dynamic_member< mpl::int_< 47> , self_type * >::type member48; typedef typename expression::dynamic_member< mpl::int_< 48> , self_type * >::type member49; typedef typename expression::dynamic_member< mpl::int_< 49> , self_type * >::type member50;
+        typedef typename expression::dynamic_member< mpl::int_< 0> , self_type * >::type const member1; typedef typename expression::dynamic_member< mpl::int_< 1> , self_type * >::type const member2; typedef typename expression::dynamic_member< mpl::int_< 2> , self_type * >::type const member3; typedef typename expression::dynamic_member< mpl::int_< 3> , self_type * >::type const member4; typedef typename expression::dynamic_member< mpl::int_< 4> , self_type * >::type const member5; typedef typename expression::dynamic_member< mpl::int_< 5> , self_type * >::type const member6; typedef typename expression::dynamic_member< mpl::int_< 6> , self_type * >::type const member7; typedef typename expression::dynamic_member< mpl::int_< 7> , self_type * >::type const member8; typedef typename expression::dynamic_member< mpl::int_< 8> , self_type * >::type const member9; typedef typename expression::dynamic_member< mpl::int_< 9> , self_type * >::type const member10; typedef typename expression::dynamic_member< mpl::int_< 10> , self_type * >::type const member11; typedef typename expression::dynamic_member< mpl::int_< 11> , self_type * >::type const member12; typedef typename expression::dynamic_member< mpl::int_< 12> , self_type * >::type const member13; typedef typename expression::dynamic_member< mpl::int_< 13> , self_type * >::type const member14; typedef typename expression::dynamic_member< mpl::int_< 14> , self_type * >::type const member15; typedef typename expression::dynamic_member< mpl::int_< 15> , self_type * >::type const member16; typedef typename expression::dynamic_member< mpl::int_< 16> , self_type * >::type const member17; typedef typename expression::dynamic_member< mpl::int_< 17> , self_type * >::type const member18; typedef typename expression::dynamic_member< mpl::int_< 18> , self_type * >::type const member19; typedef typename expression::dynamic_member< mpl::int_< 19> , self_type * >::type const member20; typedef typename expression::dynamic_member< mpl::int_< 20> , self_type * >::type const member21; typedef typename expression::dynamic_member< mpl::int_< 21> , self_type * >::type const member22; typedef typename expression::dynamic_member< mpl::int_< 22> , self_type * >::type const member23; typedef typename expression::dynamic_member< mpl::int_< 23> , self_type * >::type const member24; typedef typename expression::dynamic_member< mpl::int_< 24> , self_type * >::type const member25; typedef typename expression::dynamic_member< mpl::int_< 25> , self_type * >::type const member26; typedef typename expression::dynamic_member< mpl::int_< 26> , self_type * >::type const member27; typedef typename expression::dynamic_member< mpl::int_< 27> , self_type * >::type const member28; typedef typename expression::dynamic_member< mpl::int_< 28> , self_type * >::type const member29; typedef typename expression::dynamic_member< mpl::int_< 29> , self_type * >::type const member30; typedef typename expression::dynamic_member< mpl::int_< 30> , self_type * >::type const member31; typedef typename expression::dynamic_member< mpl::int_< 31> , self_type * >::type const member32; typedef typename expression::dynamic_member< mpl::int_< 32> , self_type * >::type const member33; typedef typename expression::dynamic_member< mpl::int_< 33> , self_type * >::type const member34; typedef typename expression::dynamic_member< mpl::int_< 34> , self_type * >::type const member35; typedef typename expression::dynamic_member< mpl::int_< 35> , self_type * >::type const member36; typedef typename expression::dynamic_member< mpl::int_< 36> , self_type * >::type const member37; typedef typename expression::dynamic_member< mpl::int_< 37> , self_type * >::type const member38; typedef typename expression::dynamic_member< mpl::int_< 38> , self_type * >::type const member39; typedef typename expression::dynamic_member< mpl::int_< 39> , self_type * >::type const member40; typedef typename expression::dynamic_member< mpl::int_< 40> , self_type * >::type const member41; typedef typename expression::dynamic_member< mpl::int_< 41> , self_type * >::type const member42; typedef typename expression::dynamic_member< mpl::int_< 42> , self_type * >::type const member43; typedef typename expression::dynamic_member< mpl::int_< 43> , self_type * >::type const member44; typedef typename expression::dynamic_member< mpl::int_< 44> , self_type * >::type const member45; typedef typename expression::dynamic_member< mpl::int_< 45> , self_type * >::type const member46; typedef typename expression::dynamic_member< mpl::int_< 46> , self_type * >::type const member47; typedef typename expression::dynamic_member< mpl::int_< 47> , self_type * >::type const member48; typedef typename expression::dynamic_member< mpl::int_< 48> , self_type * >::type const member49; typedef typename expression::dynamic_member< mpl::int_< 49> , self_type * >::type const member50;
         mutable dynamic_frame_type* frame;
     };
diff --git a/include/boost/phoenix/statement/try_catch.hpp b/include/boost/phoenix/statement/try_catch.hpp
index 1ace07f..921a9ca 100644
--- a/include/boost/phoenix/statement/try_catch.hpp
+++ b/include/boost/phoenix/statement/try_catch.hpp
@@ -116,31 +116,55 @@ namespace boost { namespace phoenix
             : proto::or_<
                 proto::when<
                     phoenix::rule::catch_all
-                  , evaluator(proto::_child_c<0>, proto::_data, proto::make<int()>)
+                  , proto::call<
+                        evaluator(
+                            proto::_child_c<0>
+                          , proto::_data
+                          , proto::make<int()>
+                        )
+                    >
                 >
               , proto::when<
                     phoenix::rule::catch_
-                  , evaluator(proto::_child_c<1>, proto::_data, proto::make<int()>)
+                  , proto::call<
+                        evaluator(
+                            proto::_child_c<1>
+                          , proto::_data
+                          , proto::make<int()>
+                        )
+                    >
                 >
               , proto::when<
                     phoenix::rule::try_catch
-                  , mpl::and_<
-                        evaluator(proto::_child_c<0>, proto::_data, proto::make<int()>)
-                      , proto::fold<
-                            proto::call<proto::functional::pop_front(proto::_)>
-                          , proto::make<mpl::true_()>
-                          , mpl::and_<
-                                proto::_state
-                              , proto::call<
-                                    try_catch_is_nullary(
-                                        proto::_
-                                      , proto::make<int()>
-                                      , proto::_data
-                                    )
+                  , proto::make<
+                        mpl::and_<
+                            proto::call<
+                                evaluator(
+                                    proto::_child_c<0>
+                                  , proto::_data
+                                  , proto::make<int()>
+                                )
+                            >
+                          , proto::fold<
+                                proto::call<
+                                    proto::functional::pop_front(proto::_)
                                 >
-                            >()
-                        >
-                    >()
+                              , proto::make<mpl::true_()>
+                              , proto::make<
+                                    mpl::and_<
+                                        proto::_state
+                                      , proto::call<
+                                            try_catch_is_nullary(
+                                                proto::_
+                                              , proto::make<int()>
+                                              , proto::_data
+                                            )
+                                        >
+                                    >()
+                                >
+                            >
+                        >()
+                    >
                 >
             >
         {};
@@ -229,7 +253,13 @@ namespace boost { namespace phoenix
 
     template <typename Dummy>
     struct is_nullary::when<rule::try_catch, Dummy>
-        : proto::call<detail::try_catch_is_nullary(proto::_, int(), _context)>
+        : proto::call<
+            detail::try_catch_is_nullary(
+                proto::_
+              , proto::make<int()>
+              , _context
+            )
+        >
     {};
 
     template <typename TryCatch, typename Exception>
diff --git a/preprocess/wave.cfg b/preprocess/wave.cfg
index 88e7e92..36cb041 100644
--- a/preprocess/wave.cfg
+++ b/preprocess/wave.cfg
@@ -1,6 +1,6 @@
 -DBOOST_PHOENIX_DONT_USE_PREPROCESSED_FILES
 -DBOOST_PHOENIX_CREATE_PREPROCESSED_FILES
--S/home/thomas/programming/boost
+-S/home/thomas/programming/boost/trunk
 -S/usr/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include
 -S/usr/include/c++/4.6.0
 -S/usr/include/c++/4.6.0/x86_64-unknown-linux-gnu
diff --git a/test/Jamfile b/test/Jamfile
index fe48ee4..5c5ba1c 100644
--- a/test/Jamfile
+++ b/test/Jamfile
@@ -46,6 +46,7 @@ test-suite phoenix_bind :
 #    [ run bind/bind_function_object_tests_phx2.cpp ]
     [ run bind/bind_member_function_tests.cpp ]
     [ run bind/bind_member_variable_tests.cpp ]
+    [ run bind/bug5782.cpp ]
     ;
     
 test-suite phoenix_statement :
@@ -115,6 +116,7 @@ test-suite phoenix_boost_bind_compatibility :
 test-suite phoenix_regression :
     [ run regression/bug4853.cpp ]
     [ run regression/bug5626.cpp ]
+    [ run regression/bug5968.cpp ]
     ;
 
 test-suite phoenix_include :
@@ -155,7 +157,7 @@ test-suite phoenix_include :
     [ run include/object/static_cast.cpp ]
     [ run include/operator/arithmetic.cpp ]
     [ run include/operator/bitwise.cpp ]
-    [ run include/operator/comparision.cpp ]
+    [ run include/operator/comparison.cpp ]
     [ run include/operator/if_else.cpp ]
     [ run include/operator/io.cpp ]
     [ run include/operator/logical.cpp ]
diff --git a/test/bind/bug5782.cpp b/test/bind/bug5782.cpp
new file mode 100644
index 0000000..e07b526
--- /dev/null
+++ b/test/bind/bug5782.cpp
@@ -0,0 +1,17 @@
+#include <boost/phoenix/bind/bind_function.hpp>
+#include <boost/phoenix/core/argument.hpp>
+
+#include <iostream>
+
+using namespace boost::phoenix;
+using namespace boost::phoenix::placeholders;
+
+void foo(int n)
+{
+    std::cout << n << std::endl;
+}
+
+int main()
+{
+    bind(&foo, arg1)(4);
+}
diff --git a/test/include/operator/comparision.cpp b/test/include/operator/comparison.cpp
similarity index 88%
rename from test/include/operator/comparision.cpp
rename to test/include/operator/comparison.cpp
index 8bbe10d..49912bd 100644
--- a/test/include/operator/comparision.cpp
+++ b/test/include/operator/comparison.cpp
@@ -3,5 +3,5 @@
     Distributed under the Boost Software License, Version 1.0. (See accompanying
     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 ==============================================================================*/
-#include <boost/phoenix/operator/comparision.hpp>
+#include <boost/phoenix/operator/comparison.hpp>
 int main() {}
diff --git a/test/regression/bug5968.cpp b/test/regression/bug5968.cpp
new file mode 100644
index 0000000..403c945
--- /dev/null
+++ b/test/regression/bug5968.cpp
@@ -0,0 +1,20 @@
+
+#include <boost/phoenix.hpp>
+#include <boost/signals2.hpp>
+ 
+struct s
+{
+        bool f(int, bool) { return true; }
+};
+ 
+int main()
+{
+        s s_obj;
+        boost::signals2::signal<bool (int, bool)> sig;
+        sig.connect(
+                boost::phoenix::bind(
+                        &s::f, &s_obj,
+                        boost::phoenix::placeholders::arg1,
+                        boost::phoenix::placeholders::arg2));
+}
+
diff --git a/test/scope/lambda_tests.cpp b/test/scope/lambda_tests.cpp
index 599be69..f77af2a 100644
--- a/test/scope/lambda_tests.cpp
+++ b/test/scope/lambda_tests.cpp
@@ -186,7 +186,7 @@ main()
     {
 		  {
             // $$$ Fixme. This should not be failing $$$
-            int x = (let(_a = lambda[val(1)])[_a])()();
+            //int x = (let(_a = lambda[val(1)])[_a])()();
             //BOOST_TEST(x == 1);
 		  }