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| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="fusion.adapted.adapt_tpl_struct"></a><a class="link" href="adapt_tpl_struct.html" title="BOOST_FUSION_ADAPT_TPL_STRUCT">BOOST_FUSION_ADAPT_TPL_STRUCT</a> |
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| <a name="fusion.adapted.adapt_tpl_struct.description"></a><h5> |
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| <a class="link" href="adapt_tpl_struct.html#fusion.adapted.adapt_tpl_struct.description">Description</a> |
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| <p> |
| BOOST_FUSION_ADAPT_TPL_STRUCT is a macro that can be used to generate all |
| the necessary boilerplate to make an arbitrary template struct a model of |
| <a class="link" href="../sequence/concepts/random_access_sequence.html" title="Random Access Sequence">Random Access |
| Sequence</a>. |
| </p> |
| <a name="fusion.adapted.adapt_tpl_struct.synopsis"></a><h5> |
| <a name="id927735"></a> |
| <a class="link" href="adapt_tpl_struct.html#fusion.adapted.adapt_tpl_struct.synopsis">Synopsis</a> |
| </h5> |
| <pre class="programlisting"><span class="identifier">BOOST_FUSION_ADAPT_TPL_STRUCT</span><span class="special">(</span> |
| <span class="special">(</span><span class="identifier">template_param0</span><span class="special">)(</span><span class="identifier">template_param1</span><span class="special">)...,</span> |
| <span class="special">(</span><span class="identifier">struct_name</span><span class="special">)</span> <span class="special">(</span><span class="identifier">specialization_param0</span><span class="special">)(</span><span class="identifier">specialization_param1</span><span class="special">)...,</span> |
| <span class="special">(</span><span class="identifier">member_type0</span><span class="special">,</span> <span class="identifier">member_name0</span><span class="special">)</span> |
| <span class="special">(</span><span class="identifier">member_type1</span><span class="special">,</span> <span class="identifier">member_name1</span><span class="special">)</span> |
| <span class="special">...</span> |
| <span class="special">)</span> |
| </pre> |
| <a name="fusion.adapted.adapt_tpl_struct.semantics"></a><h5> |
| <a name="id927861"></a> |
| <a class="link" href="adapt_tpl_struct.html#fusion.adapted.adapt_tpl_struct.semantics">Semantics</a> |
| </h5> |
| <p> |
| The above macro generates the necessary code to adapt <code class="computeroutput"><span class="identifier">struct_name</span></code> |
| or an arbitrary specialization of <code class="computeroutput"><span class="identifier">struct_name</span></code> |
| as a model of <a class="link" href="../sequence/concepts/random_access_sequence.html" title="Random Access Sequence">Random |
| Access Sequence</a>. The sequence <code class="computeroutput"><span class="special">(</span><span class="identifier">template_param0</span><span class="special">)(</span><span class="identifier">template_param1</span><span class="special">)...</span></code> |
| declares the names of the template type parameters used. The sequence <code class="computeroutput"><span class="special">(</span><span class="identifier">specialization_param0</span><span class="special">)(</span><span class="identifier">specialization_param1</span><span class="special">)...</span></code> declares the template parameters of the |
| actual specialization of <code class="computeroutput"><span class="identifier">struct_name</span></code> |
| that is adapted as a fusion sequence. The sequence of <code class="computeroutput"><span class="special">(</span><span class="identifier">member_typeN</span><span class="special">,</span> |
| <span class="identifier">member_nameN</span><span class="special">)</span></code> |
| pairs declares the type and names of each of the struct members that are |
| part of the sequence. |
| </p> |
| <p> |
| The macro should be used at global scope, and <code class="computeroutput"><span class="identifier">struct_name</span></code> |
| should be the fully namespace qualified name of the struct to be adapted. |
| </p> |
| <a name="fusion.adapted.adapt_tpl_struct.header"></a><h5> |
| <a name="id927984"></a> |
| <a class="link" href="adapt_tpl_struct.html#fusion.adapted.adapt_tpl_struct.header">Header</a> |
| </h5> |
| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="keyword">struct</span><span class="special">/</span><span class="identifier">adapt_struct</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">include</span><span class="special">/</span><span class="identifier">adapt_struct</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| </pre> |
| <a name="fusion.adapted.adapt_tpl_struct.example"></a><h5> |
| <a name="id928099"></a> |
| <a class="link" href="adapt_tpl_struct.html#fusion.adapted.adapt_tpl_struct.example">Example</a> |
| </h5> |
| <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">demo</span> |
| <span class="special">{</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Name</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Age</span><span class="special">></span> |
| <span class="keyword">struct</span> <span class="identifier">employee</span> |
| <span class="special">{</span> |
| <span class="identifier">Name</span> <span class="identifier">name</span><span class="special">;</span> |
| <span class="identifier">Age</span> <span class="identifier">age</span><span class="special">;</span> |
| <span class="special">};</span> |
| <span class="special">}</span> |
| |
| <span class="comment">// Any instantiated demo::employee is now a Fusion sequence |
| </span><span class="identifier">BOOST_FUSION_ADAPT_TPL_STRUCT</span><span class="special">(</span> |
| <span class="special">(</span><span class="identifier">Name</span><span class="special">)(</span><span class="identifier">Age</span><span class="special">),</span> |
| <span class="special">(</span><span class="identifier">demo</span><span class="special">::</span><span class="identifier">employee</span><span class="special">)</span> <span class="special">(</span><span class="identifier">Name</span><span class="special">)(</span><span class="identifier">Age</span><span class="special">),</span> |
| <span class="special">(</span><span class="identifier">Name</span><span class="special">,</span> <span class="identifier">name</span><span class="special">)</span> |
| <span class="special">(</span><span class="identifier">Age</span><span class="special">,</span> <span class="identifier">age</span><span class="special">))</span> |
| </pre> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias |
| Schwinger<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
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