Release 1.53.0

[SVN r82734]

doc/html/reference.html

@@ -1094,7 +1094,7 @@ already <tt class="docutils literal"><span class="pre">#defined</span></tt>.</p>
 <col class="field-name" />
 <col class="field-body" />
 <tbody valign="top">
-<tr class="field"><th class="field-name">Default Value:</th><td class="field-body"><tt class="docutils literal"><span class="pre">5</span></tt></td>
+<tr class="field"><th class="field-name">Default Value:</th><td class="field-body"><tt class="docutils literal"><span class="pre">8</span></tt></td>
 </tr>
 </tbody>
 </table>

doc/reference.rst

@@ -970,7 +970,7 @@ already ``#defined``.
 
 __ ../../../../boost/parameter/config.hpp
 
-:Default Value: ``5``
+:Default Value: ``8``
 
 Tutorial
 ========

include/boost/parameter/aux_/cast.hpp

@@ -40,11 +40,11 @@ struct use_default_tag {};
 //   X(something, *(predicate))
 //   X(something, (int))
 
-template <class T>
+template <class T, class Args>
 struct cast;
 
-template <>
-struct cast<void*>
+template <class Args>
+struct cast<void*, Args>
 {
     static use_default_tag execute(use_default_tag)
     {
@@ -73,27 +73,39 @@ struct cast<void*>
 
 typedef void* voidstar;
 
-template <class T>
-struct cast<voidstar(T)>
-  : cast<void*>
+template <class T, class Args>
+struct cast<voidstar(T), Args>
+  : cast<void*, Args>
 {
 };
 
 #else
 
-template <class T>
-struct cast<void*(T)>
-  : cast<void*>
+template <class T, class Args>
+struct cast<void*(T), Args>
+  : cast<void*, Args>
 {
 };
 
 #endif
 
-template <class T>
-struct cast<void(T)>
+// This is a hack used in cast<> to turn the user supplied type,
+// which may or may not be a placeholder expression into one, so
+// that it will be properly evaluated by mpl::apply.
+template <class T, class Dummy = mpl::_1>
+struct as_placeholder_expr
 {
+    typedef T type;
+};
+
+template <class T, class Args>
+struct cast<void(T), Args>
+{
+    typedef typename mpl::apply2<
+        as_placeholder_expr<T>, Args, Args>::type type0;
+
     typedef typename boost::add_reference<
-        typename boost::remove_const<T>::type 
+        typename boost::remove_const<type0>::type 
     >::type reference;
 
     static use_default_tag execute(use_default_tag)
@@ -106,7 +118,7 @@ struct cast<void(T)>
         return use_default_tag();
     }
 
-    static T execute(T value)
+    static type0 execute(type0 value)
     {
         return value;
     }
@@ -118,9 +130,9 @@ struct cast<void(T)>
     }
 };
 
-#  define BOOST_PARAMETER_FUNCTION_CAST(value, predicate) \
-    boost::parameter::aux::cast<void predicate>::remove_const( \
-        boost::parameter::aux::cast<void predicate>::execute(value) \
+#  define BOOST_PARAMETER_FUNCTION_CAST(value, predicate, args) \
+    boost::parameter::aux::cast<void predicate, args>::remove_const( \
+        boost::parameter::aux::cast<void predicate, args>::execute(value) \
     )
 
 # endif

include/boost/parameter/config.hpp

@@ -7,7 +7,7 @@
 #define BOOST_PARAMETER_CONFIG_050403_HPP
 
 #ifndef BOOST_PARAMETER_MAX_ARITY
-# define BOOST_PARAMETER_MAX_ARITY 5
+# define BOOST_PARAMETER_MAX_ARITY 8
 #endif
 
 #endif // BOOST_PARAMETER_CONFIG_050403_HPP

include/boost/parameter/name.hpp

@@ -27,7 +27,7 @@ namespace boost { namespace parameter { namespace aux {
 // Tag type passed to MPL lambda.
 struct lambda_tag;
 
-struct name_tag_base 
+struct name_tag_base
 {};
 
 template <class Tag>
@@ -46,7 +46,7 @@ namespace boost { namespace mpl {
 template <class T>
 struct lambda<
     T
-  , typename enable_if<
+  , typename boost::enable_if<
         parameter::aux::is_name_tag<T>, parameter::aux::lambda_tag
     >::type
 >

include/boost/parameter/preprocessor.hpp

@@ -701,6 +701,7 @@ struct funptr_predicate<void**>
             ) \
         ] \
       , BOOST_PARAMETER_FN_ARG_PRED(arg) \
+      , Args \
     )
 
 # define BOOST_PARAMETER_FUNCTION_DEFAULT_FUNCTION_BODY(name, n, split_args, tag_namespace) \
@@ -728,6 +729,7 @@ struct funptr_predicate<void**>
     BOOST_PARAMETER_FUNCTION_CAST( \
         boost::parameter::aux::as_lvalue(BOOST_PARAMETER_FN_ARG_DEFAULT(arg), 0L) \
       , BOOST_PARAMETER_FN_ARG_PRED(arg) \
+      , Args \
     )
 
 # define BOOST_PARAMETER_FUNCTION_DEFAULT_EVAL_DEFAULT_BODY(name, n, split_args, tag_ns, const_) \
@@ -843,6 +845,7 @@ struct funptr_predicate<void**>
               boost::parameter::keyword<tag_ns::BOOST_PARAMETER_FN_ARG_KEYWORD(arg)>::instance \
           ] \
         , BOOST_PARAMETER_FN_ARG_PRED(arg) \
+        , Args \
       )
 
 // Generates the function template that recives a ArgumentPack, and then