Release 1.44.0

[SVN r64846]

doc/html/index.html

@@ -37,7 +37,7 @@ can be deduced from their types.</p>
 </tbody>
 </table>
 <!-- @jam_prefix.append('''
-project test : requirements <include>. <implicit-dependency>/boost//headers ;''') -->
+project test : requirements <include>. <source>/boost//headers ;''') -->
 <!-- @example.prepend('''
 #include <boost/parameter.hpp>
 
@@ -78,14 +78,14 @@ int x = '''); -->
 <tbody valign="top">
 <tr class="field"><th class="field-name">Authors:</th><td class="field-body">David Abrahams, Daniel Wallin</td>
 </tr>
-<tr class="field"><th class="field-name">Contact:</th><td class="field-body"><a class="reference external" href="mailto:dave&#64;boost-consulting.com">dave&#64;boost-consulting.com</a>, <a class="reference external" href="mailto:daniel&#64;boostpro.com">daniel&#64;boostpro.com</a></td>
+<tr class="field"><th class="field-name">Contact:</th><td class="field-body"><a class="reference external" href="mailto:dave&#64;boost-consulting.com">dave&#64;boost-consulting.com</a>, <a class="reference external" href="mailto:dalwan01&#64;student.umu.se">dalwan01&#64;student.umu.se</a></td>
 </tr>
-<tr class="field"><th class="field-name">organization:</th><td class="field-body"><a class="reference external" href="http://www.boostpro.com">BoostPro Computing</a></td>
+<tr class="field"><th class="field-name">Organization:</th><td class="field-body"><a class="reference external" href="http://www.boost-consulting.com">Boost Consulting</a></td>
 </tr>
-<tr class="field"><th class="field-name">date:</th><td class="field-body">$Date: 2005/07/17 19:53:01 $</td>
+<tr class="field"><th class="field-name">Date:</th><td class="field-body">$Date: 2005/07/18 20:34:31 $</td>
 </tr>
-<tr class="field"><th class="field-name">copyright:</th><td class="field-body">Copyright David Abrahams, Daniel Wallin
-2005-2009. Distributed under the Boost Software License,
+<tr class="field"><th class="field-name">Copyright:</th><td class="field-body">Copyright David Abrahams, Daniel Wallin 2005.
+Distributed under the Boost Software License,
 Version 1.0. (See accompanying file LICENSE_1_0.txt
 or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</td>
 </tr>
@@ -508,7 +508,7 @@ tuple:</p>
 (required <strong>(graph, *)</strong> )
 </pre>
 <p class="compound-last">Since <tt class="docutils literal"><span class="pre">depth_first_search</span></tt> doesn't require any particular type
-for its <tt class="docutils literal"><span class="pre">graph</span></tt> parameter, we use an asterisk to indicate that
+for its <tt class="docutils literal"><span class="pre">graph</span></tt> parameter, we use an asterix to indicate that
 any type is allowed.  Required parameters must always precede any
 optional parameters in a signature, but if there are <em>no</em>
 required parameters, the <tt class="docutils literal"><span class="pre">(required</span> <span class="pre">…</span> <span class="pre">)</span></tt> clause can be omitted
@@ -727,7 +727,7 @@ worse—think of the kinds of errors you get from your STL
 implementation when you make a mistake).<a class="footnote-reference" href="#conceptcpp" id="id7"><sup>4</sup></a></li>
 <li>The problems with exposing such permissive function template
 signatures have been the subject of much discussion, especially
-in the presence of <a class="reference external" href="http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#225">unqualified calls</a>.  If all we want is to
+in the presence of <a class="reference external" href="http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/lwg-defects.html#225">unqualified calls</a>.  If all we want is to
 avoid unintentional argument-dependent lookup (ADL), we can
 isolate <tt class="docutils literal"><span class="pre">depth_first_search</span></tt> in a namespace containing no
 types<a class="footnote-reference" href="#using" id="id8"><sup>6</sup></a>, but suppose we <em>want</em> it to found via ADL?</li>
@@ -791,7 +791,7 @@ Metafunctions</a>.  There's no space to give a complete description
 of metafunctions or of graph library details here, but we'll show
 you the complete signature with maximal checking, just to give you
 a feel for how it's done.  Each predicate metafunction is enclosed
-in parentheses <em>and preceded by an asterisk</em>, as follows:</p>
+in parentheses <em>and preceded by an asterix</em>, as follows:</p>
 <pre class="literal-block">
 BOOST_PARAMETER_FUNCTION(
     (void), depth_first_search, graphs
@@ -1026,7 +1026,7 @@ BOOST_PARAMETER_NAME(arg2)
 struct callable2
 {
     BOOST_PARAMETER_CONST_MEMBER_FUNCTION(
-        (void), call, tag, (required (arg1,(int))(arg2,(int))))
+        (void), operator(), tag, (required (arg1,(int))(arg2,(int))))
     {
         std::cout &lt;&lt; arg1 &lt;&lt; &quot;, &quot; &lt;&lt; arg2 &lt;&lt; std::endl;
     }
@@ -1034,9 +1034,7 @@ struct callable2
 </pre>
 <!-- @example.prepend('''
 #include <boost/parameter.hpp>
-#include <iostream>
-using namespace boost::parameter;
-''') -->
+#include <iostream>''') -->
 <!-- @test('compile') -->
 <p>These macros don't directly allow a function's interface to be
 separated from its implementation, but you can always forward
@@ -1045,7 +1043,7 @@ arguments on to a separate implementation function:</p>
 struct callable2
 {
     BOOST_PARAMETER_CONST_MEMBER_FUNCTION(
-        (void), call, tag, (required (arg1,(int))(arg2,(int))))
+        (void), operator(), tag, (required (arg1,(int))(arg2,(int))))
     {
         call_impl(arg1,arg2);
     }
@@ -1057,33 +1055,8 @@ struct callable2
 #include <boost/parameter.hpp>
 
 BOOST_PARAMETER_NAME(arg1)
-BOOST_PARAMETER_NAME(arg2)
-using namespace boost::parameter;
-''') -->
+BOOST_PARAMETER_NAME(arg2)''') -->
 <!-- @test('compile') -->
-<div class="section" id="static-member-functions">
-<h3>2.2.1&nbsp;&nbsp;&nbsp;Static Member Functions</h3>
-<p>To expose a static member function, simply insert the keyword
-“<tt class="docutils literal"><span class="pre">static</span></tt>” before the function name:</p>
-<pre class="literal-block">
-BOOST_PARAMETER_NAME(arg1)
-
-struct somebody
-{
-    BOOST_PARAMETER_MEMBER_FUNCTION(
-        (void), <strong>static</strong> f, tag, (optional (arg1,(int),0)))
-    {
-        std::cout &lt;&lt; arg1 &lt;&lt; std::endl;
-    }
-};
-</pre>
-<!-- @example.prepend('''
-#include <boost/parameter.hpp>
-#include <iostream>
-using namespace boost::parameter;
-''') -->
-<!-- @test('compile') -->
-</div>
 </div>
 <div class="section" id="parameter-enabled-constructors">
 <h2><a class="toc-backref" href="#id29">2.3&nbsp;&nbsp;&nbsp;Parameter-Enabled Constructors</a></h2>
@@ -1251,10 +1224,10 @@ namespace boost { namespace python {
 using boost::mpl::_;
 
 typedef parameter::parameters&lt;
-    required&lt;tag::class_type, boost::is_class&lt;_&gt; &gt;
-  , parameter::optional&lt;tag::base_list, mpl::is_sequence&lt;_&gt; &gt;
-  , parameter::optional&lt;tag::held_type&gt;
-  , parameter::optional&lt;tag::copyable&gt;
+    required&lt;tag::class_type, is_class&lt;_&gt; &gt;
+  , optional&lt;tag::base_list, mpl::is_sequence&lt;_&gt; &gt;
+  , optional&lt;tag::held_type&gt;
+  , optional&lt;tag::copyable&gt;
 &gt; class_signature;
 
 }}
@@ -1263,7 +1236,6 @@ typedef parameter::parameters&lt;
 #include <boost/parameter.hpp>
 #include <boost/mpl/is_sequence.hpp>
 #include <boost/noncopyable.hpp>
-#include <boost/type_traits/is_class.hpp>
 #include <memory>
 
 using namespace boost::parameter;
@@ -1283,13 +1255,11 @@ struct bases
 </div>
 <div class="section" id="argument-packs-and-parameter-extraction">
 <span id="binding-intro"></span><h4>2.4.1.4&nbsp;&nbsp;&nbsp;Argument Packs and Parameter Extraction</h4>
-<p>Next, within the body of <tt class="docutils literal"><span class="pre">class_</span></tt> , we use the <span class="concept">ParameterSpec</span>'s
-nested <tt class="docutils literal"><span class="pre">::bind&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> template to bundle the actual arguments into an
-<a class="reference external" href="reference.html#argumentpack"><span class="concept">ArgumentPack</span></a> type, and then use the library's <tt class="docutils literal"><span class="pre">value_type&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt>
-metafunction to extract “logical parameters”.  <tt class="docutils literal"><span class="pre">value_type&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> is
-a lot like <tt class="docutils literal"><span class="pre">binding&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt>, but no reference is added to the actual
-argument type.  Note that defaults are specified by passing it an
-optional third argument:</p>
+<p>Next, within the body of <tt class="docutils literal"><span class="pre">class_</span></tt> , we use the <span class="concept">ParameterSpec</span>'s nested <tt class="docutils literal"><span class="pre">::bind&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> template to bundle the actual arguments
+into an <a class="reference external" href="reference.html#argumentpack"><span class="concept">ArgumentPack</span></a> type, and then use the library's <tt class="docutils literal"><span class="pre">binding&lt;</span>
+<span class="pre">…</span> <span class="pre">&gt;</span></tt> metafunction to extract “logical parameters”.  Note that
+defaults are specified by supplying an optional third argument to
+<tt class="docutils literal"><span class="pre">binding&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt>:</p>
 <pre class="literal-block">
 namespace boost { namespace python {
 
@@ -1307,16 +1277,16 @@ struct class_
     args;
 
     // Extract first logical parameter.
-    typedef typename parameter::value_type&lt;
+    typedef typename parameter::binding&lt;
       args, tag::class_type&gt;::type class_type;
 
-    typedef typename parameter::value_type&lt;
+    typedef typename parameter::binding&lt;
       args, tag::base_list, bases&lt;&gt; &gt;::type base_list;
 
-    typedef typename parameter::value_type&lt;
+    typedef typename parameter::binding&lt;
       args, tag::held_type, class_type&gt;::type held_type;
 
-    typedef typename parameter::value_type&lt;
+    typedef typename parameter::binding&lt;
       args, tag::copyable, void&gt;::type copyable;
 };
 
@@ -1411,12 +1381,12 @@ parameters deducible:</p>
 typedef parameter::parameters&lt;
     required&lt;tag::class_type, is_class&lt;_&gt; &gt;
 
-  , parameter::optional&lt;
+  , optional&lt;
         deduced&lt;tag::base_list&gt;
       , is_base_and_derived&lt;detail::bases_base,_&gt;
     &gt;
 
-  , parameter::optional&lt;
+  , optional&lt;
         deduced&lt;tag::held_type&gt;
       , mpl::not_&lt;
             mpl::or_&lt;
@@ -1426,12 +1396,11 @@ typedef parameter::parameters&lt;
         &gt;
     &gt;
 
-  , parameter::optional&lt;deduced&lt;tag::copyable&gt;, is_same&lt;noncopyable,_&gt; &gt;
+  , optional&lt;deduced&lt;tag::copyable&gt;, is_same&lt;noncopyable,_&gt; &gt;
 
 &gt; class_signature;
 </pre>
 <!-- @example.prepend('''
-#include <boost/type_traits/is_class.hpp>
 namespace boost { namespace python {''') -->
 <!-- @example.append('''
 template <
@@ -1448,16 +1417,16 @@ struct class_
     args;
 
     // Extract first logical parameter.
-    typedef typename parameter::value_type<
+    typedef typename parameter::binding<
       args, tag::class_type>::type class_type;
 
-    typedef typename parameter::value_type<
+    typedef typename parameter::binding<
       args, tag::base_list, bases<> >::type base_list;
 
-    typedef typename parameter::value_type<
+    typedef typename parameter::binding<
       args, tag::held_type, class_type>::type held_type;
 
-    typedef typename parameter::value_type<
+    typedef typename parameter::binding<
       args, tag::copyable, void>::type copyable;
 };
 
@@ -1601,7 +1570,7 @@ using boost::mpl::_;''') -->
 int main()
 {}''') -->
 <!-- @test('run', howmany='all') -->
-<p>Note that because of the <a class="reference external" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2002/n1385.htm">forwarding problem</a>, <tt class="docutils literal"><span class="pre">parameter::parameters::operator()</span></tt>
+<p>Note that because of the <a class="reference external" href="http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2002/n1385.htm">forwarding problem</a>, <tt class="docutils literal"><span class="pre">parameter::parameters::operator()</span></tt>
 can't accept non-const rvalues.</p>
 </div>
 <div class="section" id="extracting-parameter-types">
@@ -1644,13 +1613,15 @@ int main()
 <p>Occasionally one needs to deduce argument types without an extra
 layer of function call.  For example, suppose we wanted to return
 twice the value of the <tt class="docutils literal"><span class="pre">index</span></tt> parameter?  In that
-case we can use the <tt class="docutils literal"><span class="pre">value_type&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> metafunction introduced
+case we can use the <tt class="docutils literal"><span class="pre">binding&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> metafunction introduced
 <a class="reference internal" href="#binding-intro">earlier</a>:</p>
 <pre class="literal-block">
 BOOST_PARAMETER_NAME(index)
 
 template &lt;class ArgumentPack&gt;
-typename parameter::value_type&lt;ArgumentPack, tag::index, int&gt;::type
+typename remove_reference&lt;
+    typename parameter::binding&lt;ArgumentPack, tag::index, int&gt;::type
+&gt;::type
 twice_index(ArgumentPack const&amp; args)
 {
     return 2 * args[_index|42];
@@ -1664,16 +1635,32 @@ int six = twice_index(_index = 3);
 #include <cassert>
 
 namespace parameter = boost::parameter;
-''') -->
+using boost::remove_reference;''') -->
+<p>Note that the <tt class="docutils literal"><span class="pre">remove_reference&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> dance is necessary because
+<tt class="docutils literal"><span class="pre">binding&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> will return a reference type when the argument
+is bound in the argument pack. If we don't strip the reference we
+end up returning a reference to the temporary created in the <tt class="docutils literal"><span class="pre">2</span> <span class="pre">*</span> <span class="pre">…</span></tt>
+expression. A convenient shortcut would be to use the <tt class="docutils literal"><span class="pre">value_type&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt>
+metafunction:</p>
+<pre class="literal-block">
+template &lt;class ArgumentPack&gt;
+typename <strong>parameter::value_type&lt;ArgumentPack, tag::index, int&gt;</strong>::type
+twice_index(ArgumentPack const&amp; args)
+{
+    return 2 * args[_index|42];
+}
+</pre>
+<!-- @example.wrap('namespace with_value_type {', '''
+int six = twice_index(_index = 3);
+}''') -->
+<!-- TODO: binding<> returns a reference. We should use value_type<> here. -->
 <!-- @example.append('''
 int main()
 {
     assert(six == 6);
+    assert(with_value_type::six == 6);
 }''') -->
 <!-- @test('run', howmany='all') -->
-<p>Note that if we had used <tt class="docutils literal"><span class="pre">binding&lt;</span> <span class="pre">…</span> <span class="pre">&gt;</span></tt> rather than <tt class="docutils literal"><span class="pre">value_type&lt;</span> <span class="pre">…</span>
-<span class="pre">&gt;</span></tt>, we would end up returning a reference to the temporary created in
-the <tt class="docutils literal"><span class="pre">2</span> <span class="pre">*</span> <span class="pre">…</span></tt> expression.</p>
 </div>
 <div class="section" id="lazy-default-computation">
 <h3>3.2.3&nbsp;&nbsp;&nbsp;Lazy Default Computation</h3>

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">8</span></tt></td>
+<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>
 </tbody>
 </table>

doc/index.rst

@@ -30,7 +30,7 @@ __ ../../../../index.htm
   can be deduced from their types.
 
 .. @jam_prefix.append('''
-        project test : requirements <include>. <implicit-dependency>/boost//headers ;''')
+        project test : requirements <include>. <source>/boost//headers ;''')
 
 .. @example.prepend('''
    #include <boost/parameter.hpp>
@@ -783,7 +783,7 @@ signatures.
    isolate ``depth_first_search`` in a namespace containing no
    types [#using]_, but suppose we *want* it to found via ADL?
 
-__ http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#225
+__ http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/lwg-defects.html#225
 
 It's usually a good idea to prevent functions from being considered
 for overload resolution when the passed argument types aren't
@@ -1767,7 +1767,7 @@ its function call operator:
 Note that because of the `forwarding problem`_, ``parameter::parameters::operator()``
 can't accept non-const rvalues.
 
-.. _`forwarding problem`: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2002/n1385.htm
+.. _`forwarding problem`: http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2002/n1385.htm
 
 Extracting Parameter Types
 ==========================

doc/reference.rst

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

include/boost/parameter/aux_/cast.hpp

@@ -40,11 +40,11 @@ struct use_default_tag {};
 //   X(something, *(predicate))
 //   X(something, (int))
 
-template <class T, class Args>
+template <class T>
 struct cast;
 
-template <class Args>
-struct cast<void*, Args>
+template <>
+struct cast<void*>
 {
     static use_default_tag execute(use_default_tag)
     {
@@ -73,39 +73,27 @@ struct cast<void*, Args>
 
 typedef void* voidstar;
 
-template <class T, class Args>
-struct cast<voidstar(T), Args>
-  : cast<void*, Args>
+template <class T>
+struct cast<voidstar(T)>
+  : cast<void*>
 {
 };
 
 #else
 
-template <class T, class Args>
-struct cast<void*(T), Args>
-  : cast<void*, Args>
+template <class T>
+struct cast<void*(T)>
+  : cast<void*>
 {
 };
 
 #endif
 
-// 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
+template <class T>
+struct cast<void(T)>
 {
-    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<type0>::type 
+        typename boost::remove_const<T>::type 
     >::type reference;
 
     static use_default_tag execute(use_default_tag)
@@ -118,7 +106,7 @@ struct cast<void(T), Args>
         return use_default_tag();
     }
 
-    static type0 execute(type0 value)
+    static T execute(T value)
     {
         return value;
     }
@@ -130,9 +118,9 @@ struct cast<void(T), Args>
     }
 };
 
-#  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) \
+#  define BOOST_PARAMETER_FUNCTION_CAST(value, predicate) \
+    boost::parameter::aux::cast<void predicate>::remove_const( \
+        boost::parameter::aux::cast<void predicate>::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 8
+# define BOOST_PARAMETER_MAX_ARITY 5
 #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 boost::enable_if<
+  , typename enable_if<
         parameter::aux::is_name_tag<T>, parameter::aux::lambda_tag
     >::type
 >

include/boost/parameter/preprocessor.hpp

@@ -701,7 +701,6 @@ struct funptr_predicate<void**>
             ) \
         ] \
       , BOOST_PARAMETER_FN_ARG_PRED(arg) \
-      , Args \
     )
 
 # define BOOST_PARAMETER_FUNCTION_DEFAULT_FUNCTION_BODY(name, n, split_args, tag_namespace) \
@@ -729,7 +728,6 @@ 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_) \
@@ -845,7 +843,6 @@ 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