<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>BOOST_FUSION_ADAPT_ASSOC_STRUCT</title> <link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.2"> <link rel="home" href="../../index.html" title="Chapter 1. Fusion 2.0"> <link rel="up" href="../adapted.html" title="Adapted"> <link rel="prev" href="adapt_struct_named.html" title="BOOST_FUSION_ADAPT_STRUCT_NAMED"> <link rel="next" href="adapt_assoc_tpl_struct.html" title="BOOST_FUSION_ADAPT_ASSOC_TPL_STRUCT"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr> <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td> <td align="center"><a href="../../../../../../index.html">Home</a></td> <td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td> <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> <td align="center"><a href="../../../../../../more/index.htm">More</a></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="adapt_struct_named.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../adapted.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="adapt_assoc_tpl_struct.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h3 class="title"> <a name="fusion.adapted.adapt_assoc"></a><a class="link" href="adapt_assoc.html" title="BOOST_FUSION_ADAPT_ASSOC_STRUCT"> BOOST_FUSION_ADAPT_ASSOC_STRUCT</a> </h3></div></div></div> <a name="fusion.adapted.adapt_assoc.description"></a><h5> <a name="id1009507"></a> <a class="link" href="adapt_assoc.html#fusion.adapted.adapt_assoc.description">Description</a> </h5> <p> BOOST_FUSION_ADAPT_ASSOC_STRUCT is a macro that can be used to generate all the necessary boilerplate to make an arbitrary struct a model of <a class="link" href="../sequence/concepts/random_access_sequence.html" title="Random Access Sequence">Random Access Sequence</a> and <a class="link" href="../sequence/concepts/associative_sequence.html" title="Associative Sequence">Associative Sequence</a>. </p> <a name="fusion.adapted.adapt_assoc.synopsis"></a><h5> <a name="id1009533"></a> <a class="link" href="adapt_assoc.html#fusion.adapted.adapt_assoc.synopsis">Synopsis</a> </h5> <pre class="programlisting"><span class="identifier">BOOST_FUSION_ADAPT_ASSOC_STRUCT</span><span class="special">(</span> <span class="identifier">struct_name</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="identifier">key_type0</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="identifier">key_type1</span><span class="special">)</span> <span class="special">...</span> <span class="special">)</span> </pre> <a name="fusion.adapted.adapt_assoc.semantics"></a><h5> <a name="id1009634"></a> <a class="link" href="adapt_assoc.html#fusion.adapted.adapt_assoc.semantics">Semantics</a> </h5> <p> The above macro generates the necessary code to adapt <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> and <a class="link" href="../sequence/concepts/associative_sequence.html" title="Associative Sequence">Associative Sequence</a>. 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> <span class="identifier">key_typeN</span><span class="special">)</span></code> triples declares the type, name and key type 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_assoc.header"></a><h5> <a name="id1009711"></a> <a class="link" href="adapt_assoc.html#fusion.adapted.adapt_assoc.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_assoc_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_assoc_struct</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> </pre> <a name="fusion.adapted.adapt_assoc.example"></a><h5> <a name="id1009826"></a> <a class="link" href="adapt_assoc.html#fusion.adapted.adapt_assoc.example">Example</a> </h5> <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">demo</span> <span class="special">{</span> <span class="keyword">struct</span> <span class="identifier">employee</span> <span class="special">{</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">name</span><span class="special">;</span> <span class="keyword">int</span> <span class="identifier">age</span><span class="special">;</span> <span class="special">};</span> <span class="special">}</span> <span class="keyword">namespace</span> <span class="identifier">keys</span> <span class="special">{</span> <span class="keyword">struct</span> <span class="identifier">name</span><span class="special">;</span> <span class="keyword">struct</span> <span class="identifier">age</span><span class="special">;</span> <span class="special">}</span> <span class="comment">// demo::employee is now a Fusion sequence. </span><span class="comment">// It is also an associative sequence with </span><span class="comment">// keys keys::name and keys::age present. </span><span class="identifier">BOOST_FUSION_ADAPT_ASSOC_STRUCT</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">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="identifier">name</span><span class="special">,</span> <span class="identifier">keys</span><span class="special">::</span><span class="identifier">name</span><span class="special">)</span> <span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">age</span><span class="special">,</span> <span class="identifier">keys</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>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="adapt_struct_named.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../adapted.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="adapt_assoc_tpl_struct.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>