Created a branch from trunk

[SVN r38959]

doc/html/python.html

@@ -7,7 +7,7 @@
 <title>The Boost Parameter Library Python Binding Documentation</title>
 <meta name="authors" content="Daniel Wallin" />
 <meta name="organization" content="Boost Consulting" />
-<meta name="date" content="2006-09-21" />
+<meta name="date" content="2006-12-14" />
 <meta name="copyright" content="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 http://www.boost.org/LICENSE_1_0.txt)" />
 <link rel="stylesheet" href="rst.css" type="text/css" />
 </head>
@@ -25,7 +25,7 @@
 <tr><th class="docinfo-name">Organization:</th>
 <td><a class="first last reference" href="http://www.boost-consulting.com">Boost Consulting</a></td></tr>
 <tr><th class="docinfo-name">Date:</th>
-<td>2006-09-21</td></tr>
+<td>2006-12-14</td></tr>
 <tr><th class="docinfo-name">Copyright:</th>
 <td>Copyright David Abrahams, Daniel Wallin
 2005. Distributed under the Boost Software License,
@@ -42,19 +42,19 @@ functions, operators and constructors to Python.</p>
 <div class="contents topic">
 <p class="topic-title first"><a id="contents" name="contents">Contents</a></p>
 <ul class="simple">
-<li><a class="reference" href="#introduction" id="id8" name="id8">Introduction</a></li>
-<li><a class="reference" href="#tutorial" id="id9" name="id9">Tutorial</a></li>
-<li><a class="reference" href="#concept-parameterspec" id="id10" name="id10">concept <span class="concept">ParameterSpec</span></a></li>
-<li><a class="reference" href="#special-keywords" id="id11" name="id11"><em>special</em> keywords</a></li>
-<li><a class="reference" href="#class-template-init" id="id12" name="id12">class template <tt class="docutils literal"><span class="pre">init</span></tt></a></li>
-<li><a class="reference" href="#class-template-call" id="id13" name="id13">class template <tt class="docutils literal"><span class="pre">call</span></tt></a></li>
-<li><a class="reference" href="#class-template-function" id="id14" name="id14">class template <tt class="docutils literal"><span class="pre">function</span></tt></a></li>
-<li><a class="reference" href="#function-template-def" id="id15" name="id15">function template <tt class="docutils literal"><span class="pre">def</span></tt></a></li>
-<li><a class="reference" href="#portability" id="id16" name="id16">Portability</a></li>
+<li><a class="reference" href="#introduction" id="id7" name="id7">Introduction</a></li>
+<li><a class="reference" href="#tutorial" id="id8" name="id8">Tutorial</a></li>
+<li><a class="reference" href="#concept-parameterspec" id="id9" name="id9">concept <span class="concept">ParameterSpec</span></a></li>
+<li><a class="reference" href="#special-keywords" id="id10" name="id10"><em>special</em> keywords</a></li>
+<li><a class="reference" href="#class-template-init" id="id11" name="id11">class template <tt class="docutils literal"><span class="pre">init</span></tt></a></li>
+<li><a class="reference" href="#class-template-call" id="id12" name="id12">class template <tt class="docutils literal"><span class="pre">call</span></tt></a></li>
+<li><a class="reference" href="#class-template-function" id="id13" name="id13">class template <tt class="docutils literal"><span class="pre">function</span></tt></a></li>
+<li><a class="reference" href="#function-template-def" id="id14" name="id14">function template <tt class="docutils literal"><span class="pre">def</span></tt></a></li>
+<li><a class="reference" href="#portability" id="id15" name="id15">Portability</a></li>
 </ul>
 </div>
 <div class="section">
-<h1><a class="toc-backref" href="#id8" id="introduction" name="introduction">Introduction</a></h1>
+<h1><a class="toc-backref" href="#id7" id="introduction" name="introduction">Introduction</a></h1>
 <p><tt class="docutils literal"><span class="pre">boost/parameter/python.hpp</span></tt> introduces a group of <a class="reference" href="../../../python/doc/v2/def_visitor.html"><tt class="docutils literal"><span class="pre">def_visitors</span></tt></a> that can
 be used to easily expose Boost.Parameter-enabled member functions to Python with
 Boost.Python. It also provides a function template <tt class="docutils literal"><span class="pre">def()</span></tt> that can be used
@@ -81,7 +81,7 @@ We will take a closer look at how this is done in the tutorial section below.</p
 <!-- function? -->
 </div>
 <div class="section">
-<h1><a class="toc-backref" href="#id9" id="tutorial" name="tutorial">Tutorial</a></h1>
+<h1><a class="toc-backref" href="#id8" id="tutorial" name="tutorial">Tutorial</a></h1>
 <p>In this section we will outline the steps needed to bind a simple
 Boost.Parameter-enabled member function to Python. Knowledge of the
 Boost.Parameter <a class="reference" href="index.html">macros</a> are required to understand this section.</p>
@@ -124,7 +124,8 @@ Python we use the binding utility <tt class="docutils literal"><span class="pre"
 <tt class="docutils literal"><span class="pre">boost::parameter::python::function</span></tt> is a <a class="reference" href="../../../python/doc/v2/def_visitor.html"><tt class="docutils literal"><span class="pre">def_visitor</span></tt></a> that we'll instantiate
 and pass to <tt class="docutils literal"><span class="pre">boost::python::class_::def()</span></tt>.</p>
 <p>To use <tt class="docutils literal"><span class="pre">boost::parameter::python::function</span></tt> we first need to define
-a class with forwarding overloads.</p>
+a class with forwarding overloads. This is needed because <tt class="docutils literal"><span class="pre">window::open()</span></tt>
+is a function template, so we can't refer to it in any other way.</p>
 <pre class="literal-block">
 struct open_fwd
 {
@@ -188,7 +189,9 @@ forwarding overloads that we defined earlier. The second one is an <a class="ref
 Sequence</a> with the keyword tag types and argument types for the function
 specified as function types. The pointer syntax used in <tt class="docutils literal"><span class="pre">tag::width*</span></tt> and
 <tt class="docutils literal"><span class="pre">tag::height*</span></tt> means that the parameter is optional. The first element of
-the <a class="reference" href="../../../mpl/doc/refmanual/sequences.html">MPL Sequence</a> is the return type of the function, in this case <tt class="docutils literal"><span class="pre">void</span></tt>.</p>
+the <a class="reference" href="../../../mpl/doc/refmanual/sequences.html">MPL Sequence</a> is the return type of the function, in this case <tt class="docutils literal"><span class="pre">void</span></tt>,
+which is passed as the first argument to <tt class="docutils literal"><span class="pre">operator()</span></tt> in the forwarding
+class.</p>
 <!-- The
 pointer syntax means that the parameter is optional, so in this case
 ``width`` and ``height`` are optional parameters. The third parameter
@@ -240,7 +243,7 @@ types instead). -->
 </div>
 <hr class="docutils" />
 <div class="section">
-<h1><a class="toc-backref" href="#id10" id="concept-parameterspec" name="concept-parameterspec">concept <span class="concept">ParameterSpec</span></a></h1>
+<h1><a class="toc-backref" href="#id9" id="concept-parameterspec" name="concept-parameterspec">concept <span class="concept">ParameterSpec</span></a></h1>
 <p>A <span class="concept">ParameterSpec</span> is a function type <tt class="docutils literal"><span class="pre">K(T)</span></tt> that describes both the keyword tag,
 <tt class="docutils literal"><span class="pre">K</span></tt>, and the argument type, <tt class="docutils literal"><span class="pre">T</span></tt>, for a parameter.</p>
 <p><tt class="docutils literal"><span class="pre">K</span></tt> is either:</p>
@@ -261,11 +264,12 @@ the <strong>arity range</strong> of <tt class="docutils literal"><span class="pr
 <strong>arity range</strong> of <tt class="docutils literal"><span class="pre">mpl::vector2&lt;x(int),y**(int)&gt;</span></tt> is <tt class="docutils literal"><span class="pre">[1,2]</span></tt>.</p>
 </div>
 <div class="section">
-<h1><a class="toc-backref" href="#id11" id="special-keywords" name="special-keywords"><em>special</em> keywords</a></h1>
+<h1><a class="toc-backref" href="#id10" id="special-keywords" name="special-keywords"><em>special</em> keywords</a></h1>
 <p>Sometimes it is desirable to have a default value for a parameter that differ
 in type from the parameter. This technique is useful for doing simple tag-dispatching
-based on the presence of a parameter. An <a class="reference" href="index.html#dispatching-based-on-the-presence-of-a-default">example</a> of this is given in the Boost.Parameter
-docs. The example uses a different technique, but could also have been written like this:</p>
+based on the presence of a parameter. For example:</p>
+<!-- An example_ of this is given in the Boost.Parameter
+docs. The example uses a different technique, but could also have been written like this: -->
 <pre class="literal-block">
 namespace core
 {
@@ -313,19 +317,21 @@ int main()
     depth_first_search(params()(color = 0));
 }''') -->
 <!-- @build() -->
+<!-- .. _example: index.html#dispatching-based-on-the-presence-of-a-default -->
 <p>In the above example the type of the default for <tt class="docutils literal"><span class="pre">color</span></tt> is <tt class="docutils literal"><span class="pre">mpl::false_</span></tt>, a
 type that is distinct from any color map that the user might supply.</p>
 <p>When binding the case outlined above, the default type for <tt class="docutils literal"><span class="pre">color</span></tt> will not
 be convertible to the parameter type. Therefore we need to tag the <tt class="docutils literal"><span class="pre">color</span></tt>
-keyword as a <em>special</em> keyword. By doing this we tell the binding functions
-that it needs to generate two overloads, one with the <tt class="docutils literal"><span class="pre">color</span></tt> parameter
-present and one without. Had there been two <em>special</em> keywords, four
-overloads would need to be generated. The number of generated overloads is
-equal to 2<sup>N</sup>, where <tt class="docutils literal"><span class="pre">N</span></tt> is the number of <em>special</em> keywords.</p>
+keyword as a <em>special</em> keyword. This is done by specifying the tag as
+<tt class="docutils literal"><span class="pre">tag::color**</span></tt> when binding the function (see <a class="reference" href="#concept-parameterspec">concept ParameterSpec</a> for
+more details on the tagging). By doing this we tell the binding functions that
+it needs to generate two overloads, one with the <tt class="docutils literal"><span class="pre">color</span></tt> parameter present
+and one without. Had there been two <em>special</em> keywords, four overloads would
+need to be generated. The number of generated overloads is equal to 2<sup>N</sup>, where <tt class="docutils literal"><span class="pre">N</span></tt> is the number of <em>special</em> keywords.</p>
 </div>
 <hr class="docutils" />
 <div class="section">
-<h1><a class="toc-backref" href="#id12" id="class-template-init" name="class-template-init">class template <tt class="docutils literal"><span class="pre">init</span></tt></a></h1>
+<h1><a class="toc-backref" href="#id11" id="class-template-init" name="class-template-init">class template <tt class="docutils literal"><span class="pre">init</span></tt></a></h1>
 <p>Defines a named parameter enabled constructor.</p>
 <pre class="literal-block">
 template &lt;class ParameterSpecs&gt;
@@ -348,7 +354,7 @@ model of <span class="concept">ParameterSpec</span>.</p>
 <li><p class="first">For every <tt class="docutils literal"><span class="pre">N</span></tt> in <tt class="docutils literal"><span class="pre">[U,V]</span></tt>, where <tt class="docutils literal"><span class="pre">[U,V]</span></tt> is the <strong>arity
 range</strong> of <tt class="docutils literal"><span class="pre">ParameterSpecs</span></tt>, <tt class="docutils literal"><span class="pre">Class</span></tt> must support these
 expressions:</p>
-<table border="1" class="docutils table">
+<table border="1" class="docutils">
 <colgroup>
 <col width="30%" />
 <col width="17%" />
@@ -382,7 +388,7 @@ expressions:</p>
 uses CallPolicies when creating the binding.</p>
 </div>
 <div class="section">
-<h2><a id="id3" name="id3">Example</a></h2>
+<h2><a id="example" name="example">Example</a></h2>
 <pre class="literal-block">
 #include &lt;boost/parameter/keyword.hpp&gt;
 #include &lt;boost/parameter/preprocessor.hpp&gt;
@@ -441,7 +447,7 @@ assert(args[y | 1] == 1);
 </div>
 <hr class="docutils" />
 <div class="section">
-<h1><a class="toc-backref" href="#id13" id="class-template-call" name="class-template-call">class template <tt class="docutils literal"><span class="pre">call</span></tt></a></h1>
+<h1><a class="toc-backref" href="#id12" id="class-template-call" name="class-template-call">class template <tt class="docutils literal"><span class="pre">call</span></tt></a></h1>
 <p>Defines a <tt class="docutils literal"><span class="pre">__call__</span></tt> operator, mapped to <tt class="docutils literal"><span class="pre">operator()</span></tt> in C++.</p>
 <pre class="literal-block">
 template &lt;class ParameterSpecs&gt;
@@ -464,7 +470,7 @@ is the result type of <tt class="docutils literal"><span class="pre">c(…)</spa
 </li>
 <li><p class="first"><tt class="docutils literal"><span class="pre">Class</span></tt> must support these expressions, where <tt class="docutils literal"><span class="pre">c</span></tt> is an
 instance of <tt class="docutils literal"><span class="pre">Class</span></tt>:</p>
-<table border="1" class="docutils table">
+<table border="1" class="docutils">
 <colgroup>
 <col width="24%" />
 <col width="26%" />
@@ -494,12 +500,12 @@ instance of <tt class="docutils literal"><span class="pre">Class</span></tt>:</p
 </ul>
 </div>
 <div class="section">
-<h2><a id="id4" name="id4"><tt class="docutils literal"><span class="pre">template</span> <span class="pre">&lt;class</span> <span class="pre">CallPolicies&gt;</span> <span class="pre">operator[](CallPolicies</span> <span class="pre">const&amp;)</span></tt></a></h2>
+<h2><a id="id3" name="id3"><tt class="docutils literal"><span class="pre">template</span> <span class="pre">&lt;class</span> <span class="pre">CallPolicies&gt;</span> <span class="pre">operator[](CallPolicies</span> <span class="pre">const&amp;)</span></tt></a></h2>
 <p>Returns a <tt class="docutils literal"><span class="pre">def_visitor</span></tt> equivalent to <tt class="docutils literal"><span class="pre">*this</span></tt>, except that it
 uses CallPolicies when creating the binding.</p>
 </div>
 <div class="section">
-<h2><a id="id5" name="id5">Example</a></h2>
+<h2><a id="id4" name="id4">Example</a></h2>
 <pre class="literal-block">
 #include &lt;boost/parameter/keyword.hpp&gt;
 #include &lt;boost/parameter/preprocessor.hpp&gt;
@@ -568,7 +574,7 @@ return 0;
 </div>
 <hr class="docutils" />
 <div class="section">
-<h1><a class="toc-backref" href="#id14" id="class-template-function" name="class-template-function">class template <tt class="docutils literal"><span class="pre">function</span></tt></a></h1>
+<h1><a class="toc-backref" href="#id13" id="class-template-function" name="class-template-function">class template <tt class="docutils literal"><span class="pre">function</span></tt></a></h1>
 <p>Defines a named parameter enabled member function.</p>
 <pre class="literal-block">
 template &lt;class Fwd, class ParameterSpecs&gt;
@@ -588,7 +594,7 @@ is the result type of <tt class="docutils literal"><span class="pre">c.f(…)</s
 function.</p>
 </li>
 <li><p class="first">An instance of <tt class="docutils literal"><span class="pre">Fwd</span></tt> must support this expression:</p>
-<table border="1" class="docutils table">
+<table border="1" class="docutils">
 <colgroup>
 <col width="39%" />
 <col width="18%" />
@@ -620,7 +626,7 @@ are tagged arguments.</p>
 </ul>
 </div>
 <div class="section">
-<h2><a id="id6" name="id6">Example</a></h2>
+<h2><a id="id5" name="id5">Example</a></h2>
 <p>This example exports a member function <tt class="docutils literal"><span class="pre">f(int</span> <span class="pre">x,</span> <span class="pre">int</span> <span class="pre">y</span> <span class="pre">=</span> <span class="pre">…)</span></tt> to Python. The
 sequence of <span class="concept">ParameterSpec</span>'s <tt class="docutils literal"><span class="pre">mpl::vector2&lt;tag::x(int),</span> <span class="pre">tag::y*(int)&gt;</span></tt> has
 an <strong>arity range</strong> of [2,2], so we only need one forwarding overload.</p>
@@ -684,7 +690,7 @@ assert(y == 1);
 </div>
 <hr class="docutils" />
 <div class="section">
-<h1><a class="toc-backref" href="#id15" id="function-template-def" name="function-template-def">function template <tt class="docutils literal"><span class="pre">def</span></tt></a></h1>
+<h1><a class="toc-backref" href="#id14" id="function-template-def" name="function-template-def">function template <tt class="docutils literal"><span class="pre">def</span></tt></a></h1>
 <p>Defines a named parameter enabled free function in the current Python scope.</p>
 <pre class="literal-block">
 template &lt;class Fwd, class ParameterSpecs&gt;
@@ -699,7 +705,7 @@ except the first models <span class="concept">ParameterSpec</span>. The first el
 is the result type of <tt class="docutils literal"><span class="pre">f(…)</span></tt>, where <tt class="docutils literal"><span class="pre">f</span></tt> is the function.</p>
 </li>
 <li><p class="first">An instance of <tt class="docutils literal"><span class="pre">Fwd</span></tt> must support this expression:</p>
-<table border="1" class="docutils table">
+<table border="1" class="docutils">
 <colgroup>
 <col width="39%" />
 <col width="21%" />
@@ -729,7 +735,7 @@ is the result type of <tt class="docutils literal"><span class="pre">f(…)</spa
 </ul>
 </div>
 <div class="section">
-<h2><a id="id7" name="id7">Example</a></h2>
+<h2><a id="id6" name="id6">Example</a></h2>
 <p>This example exports a function <tt class="docutils literal"><span class="pre">f(int</span> <span class="pre">x,</span> <span class="pre">int</span> <span class="pre">y</span> <span class="pre">=</span> <span class="pre">…)</span></tt> to Python. The
 sequence of <span class="concept">ParameterSpec</span>'s <tt class="docutils literal"><span class="pre">mpl::vector2&lt;tag::x(int),</span> <span class="pre">tag::y*(int)&gt;</span></tt> has
 an <strong>arity range</strong> of [2,2], so we only need one forwarding overload.</p>
@@ -766,14 +772,14 @@ BOOST_PYTHON_MODULE(…)
 </div>
 </div>
 <div class="section">
-<h1><a class="toc-backref" href="#id16" id="portability" name="portability">Portability</a></h1>
+<h1><a class="toc-backref" href="#id15" id="portability" name="portability">Portability</a></h1>
 <p>The Boost.Parameter Python binding library requires <em>partial template
 specialization</em>.</p>
 </div>
 </div>
 <div class="footer">
 <hr class="footer" />
-Generated on: 2007-01-03 17:02 UTC.
+Generated on: 2007-01-03 16:40 UTC.
 Generated by <a class="reference" href="http://docutils.sourceforge.net/">Docutils</a> from <a class="reference" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> source.
 
 </div>

doc/python.rst

@@ -132,7 +132,8 @@ Python we use the binding utility ``boost::parameter::python::function``.
 and pass to ``boost::python::class_::def()``.
 
 To use ``boost::parameter::python::function`` we first need to define
-a class with forwarding overloads.
+a class with forwarding overloads. This is needed because ``window::open()``
+is a function template, so we can't refer to it in any other way. 
 
 ::
 
@@ -204,7 +205,9 @@ forwarding overloads that we defined earlier. The second one is an `MPL
 Sequence`_ with the keyword tag types and argument types for the function
 specified as function types. The pointer syntax used in ``tag::width*`` and
 ``tag::height*`` means that the parameter is optional. The first element of
-the `MPL Sequence`_ is the return type of the function, in this case ``void``.
+the `MPL Sequence`_ is the return type of the function, in this case ``void``,
+which is passed as the first argument to ``operator()`` in the forwarding
+class.
 
 ..  The
     pointer syntax means that the parameter is optional, so in this case
@@ -295,8 +298,10 @@ the **arity range** of ``mpl::vector2<x(int),y*(int)>`` is ``[2,2]`` and the
 
 Sometimes it is desirable to have a default value for a parameter that differ
 in type from the parameter. This technique is useful for doing simple tag-dispatching
-based on the presence of a parameter. An example_ of this is given in the Boost.Parameter
-docs. The example uses a different technique, but could also have been written like this:
+based on the presence of a parameter. For example:
+
+.. An example_ of this is given in the Boost.Parameter
+   docs. The example uses a different technique, but could also have been written like this:
 
 .. parsed-literal::
 
@@ -351,18 +356,20 @@ docs. The example uses a different technique, but could also have been written l
 
 .. @build()
 
-.. _example: index.html#dispatching-based-on-the-presence-of-a-default
+.. .. _example: index.html#dispatching-based-on-the-presence-of-a-default
 
 In the above example the type of the default for ``color`` is ``mpl::false_``, a
 type that is distinct from any color map that the user might supply.
 
 When binding the case outlined above, the default type for ``color`` will not
 be convertible to the parameter type. Therefore we need to tag the ``color``
-keyword as a *special* keyword. By doing this we tell the binding functions
-that it needs to generate two overloads, one with the ``color`` parameter
-present and one without. Had there been two *special* keywords, four
-overloads would need to be generated. The number of generated overloads is
-equal to 2\ :sup:`N`, where ``N`` is the number of *special* keywords.
+keyword as a *special* keyword. This is done by specifying the tag as
+``tag::color**`` when binding the function (see `concept ParameterSpec`_ for
+more details on the tagging). By doing this we tell the binding functions that
+it needs to generate two overloads, one with the ``color`` parameter present
+and one without. Had there been two *special* keywords, four overloads would
+need to be generated. The number of generated overloads is equal to 2\
+:sup:`N`, where ``N`` is the number of *special* keywords.
 
 ------------------------------------------------------------------------------
 

include/boost/parameter/keyword.hpp

@@ -91,14 +91,18 @@ struct keyword
     // every instantiation of a function template is the same object.
     // We provide a reference to a common instance of each keyword
     // object and prevent construction by users.
-    
+    static keyword<Tag> const instance;
+
+    // This interface is deprecated
     static keyword<Tag>& get()
     {
-        static keyword<Tag> result;
-        return result;
+        return const_cast<keyword<Tag>&>(instance);
     }
 };
 
+template <class Tag>
+keyword<Tag> const keyword<Tag>::instance = {};
+
 // Reduces boilerplate required to declare and initialize keywords
 // without violating ODR.  Declares a keyword tag type with the given
 // name in namespace tag_namespace, and declares and initializes a
@@ -107,19 +111,19 @@ struct keyword
 
 #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
 
-# define BOOST_PARAMETER_KEYWORD(tag_namespace,name)                \
-    namespace tag_namespace                                         \
-    {                                                               \
-      struct name                                                   \
-      {                                                             \
-          static char const* keyword_name()                         \
-          {                                                         \
-              return #name;                                         \
-          }                                                         \
-      };                                                            \
-    }                                                               \
-    static ::boost::parameter::keyword<tag_namespace::name>& name   \
-       = ::boost::parameter::keyword<tag_namespace::name>::get();
+# define BOOST_PARAMETER_KEYWORD(tag_namespace,name)                    \
+    namespace tag_namespace                                             \
+    {                                                                   \
+      struct name                                                       \
+      {                                                                 \
+          static char const* keyword_name()                             \
+          {                                                             \
+              return #name;                                             \
+          }                                                             \
+      };                                                                \
+    }                                                                   \
+    static ::boost::parameter::keyword<tag_namespace::name> const& name \
+       = ::boost::parameter::keyword<tag_namespace::name>::instance;
 
 #else
 
@@ -136,8 +140,8 @@ struct keyword
     }                                                               \
     namespace                                                       \
     {                                                               \
-       ::boost::parameter::keyword<tag_namespace::name>& name       \
-       = ::boost::parameter::keyword<tag_namespace::name>::get();   \
+       ::boost::parameter::keyword<tag_namespace::name> const& name \
+       = ::boost::parameter::keyword<tag_namespace::name>::instance;\
     }
 
 #endif

include/boost/parameter/name.hpp

@@ -76,14 +76,14 @@ struct lambda<
 
 # if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
 #  define BOOST_PARAMETER_NAME_OBJECT(tag, name)                    \
-    static ::boost::parameter::keyword<tag>& name                   \
-       = ::boost::parameter::keyword<tag>::get();
+    static ::boost::parameter::keyword<tag> const& name             \
+       = ::boost::parameter::keyword<tag>::instance;
 # else
 #  define BOOST_PARAMETER_NAME_OBJECT(tag, name)                    \
     namespace                                                       \
     {                                                               \
-       ::boost::parameter::keyword<tag>& name                       \
-       = ::boost::parameter::keyword<tag>::get();                   \
+       ::boost::parameter::keyword<tag> const& name                 \
+       = ::boost::parameter::keyword<tag>::instance;                \
     }
 # endif
 

include/boost/parameter/parameters.hpp

@@ -835,7 +835,7 @@ struct parameters
     // !!!NOTE!!!
     //
     // The make_arg_list<> produces a reversed arg_list, so
-    // we need to pass the arguments to it's constructor
+    // we need to pass the arguments to its constructor
     // reversed.
     //
     aux::empty_arg_list operator()() const

include/boost/parameter/preprocessor.hpp

@@ -685,7 +685,7 @@ struct funptr_predicate<void**>
 # define BOOST_PARAMETER_FUNCTION_DEFAULT_EVAL_DEFAULT(arg, tag_namespace) \
     boost::parameter::keyword< \
         tag_namespace::BOOST_PARAMETER_FN_ARG_KEYWORD(arg) \
-    >::get() | boost::parameter::aux::use_default_tag()
+    >::instance | boost::parameter::aux::use_default_tag()
 
 # define BOOST_PARAMETER_FUNCTION_DEFAULT_FUNCTION_GET_ARG(arg, tag_ns) \
     BOOST_PARAMETER_FUNCTION_CAST( \
@@ -834,7 +834,7 @@ struct funptr_predicate<void**>
 # define BOOST_PARAMETER_FUNCTION_DEFAULT_GET_ARG(r, tag_ns, arg) \
     , BOOST_PARAMETER_FUNCTION_CAST( \
           args[ \
-              boost::parameter::keyword<tag_ns::BOOST_PARAMETER_FN_ARG_KEYWORD(arg)>::get() \
+              boost::parameter::keyword<tag_ns::BOOST_PARAMETER_FN_ARG_KEYWORD(arg)>::instance \
           ] \
         , BOOST_PARAMETER_FN_ARG_PRED(arg) \
       )

test/basics.cpp

@@ -107,6 +107,6 @@ int main()
    
    //f(index = 56, name = 55); // won't compile
 
-   return 0;
+   return boost::report_errors();
 }
 

test/basics.hpp

@@ -12,6 +12,7 @@
 #include <boost/assert.hpp>
 #include <boost/mpl/assert.hpp>
 #include <cstring>
+#include <boost/detail/lightweight_test.hpp>
 
 namespace test {
 
@@ -79,9 +80,9 @@ struct values_t
         BOOST_MPL_ASSERT((boost::is_same<Value,Value_>));
         BOOST_MPL_ASSERT((boost::is_same<Name,Name_>));
 #endif
-        BOOST_ASSERT(equal(n, n_));
-        BOOST_ASSERT(equal(v, v_));
-        BOOST_ASSERT(equal(i, i_));
+        BOOST_TEST(equal(n, n_));
+        BOOST_TEST(equal(v, v_));
+        BOOST_TEST(equal(i, i_));
     }
 
     Name const& n;