<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>make_cons</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="../metafunctions.html" title="MetaFunctions"> <link rel="prev" href="make_list.html" title="make_list"> <link rel="next" href="make_vector.html" title="make_vector"> </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="make_list.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="make_vector.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h5 class="title"> <a name="fusion.container.generation.metafunctions.make_cons"></a><a class="link" href="make_cons.html" title="make_cons">make_cons</a> </h5></div></div></div> <a name="fusion.container.generation.metafunctions.make_cons.description"></a><h6> <a name="id974432"></a> <a class="link" href="make_cons.html#fusion.container.generation.metafunctions.make_cons.description">Description</a> </h6> <p> Returns the result type of <a class="link" href="../functions/make_cons.html" title="make_cons"><code class="computeroutput"><span class="identifier">make_cons</span></code></a>. </p> <a name="fusion.container.generation.metafunctions.make_cons.synopsis"></a><h6> <a name="id974464"></a> <a class="link" href="make_cons.html#fusion.container.generation.metafunctions.make_cons.synopsis">Synopsis</a> </h6> <pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Car</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Cdr</span> <span class="special">=</span> <span class="identifier">nil</span><span class="special">></span> <span class="keyword">struct</span> <span class="identifier">make_cons</span><span class="special">;</span> </pre> <a name="fusion.container.generation.metafunctions.make_cons.parameters"></a><h6> <a name="id974543"></a> <a class="link" href="make_cons.html#fusion.container.generation.metafunctions.make_cons.parameters">Parameters</a> </h6> <div class="informaltable"><table class="table"> <colgroup> <col> <col> <col> </colgroup> <thead><tr> <th> <p> Parameter </p> </th> <th> <p> Requirement </p> </th> <th> <p> Description </p> </th> </tr></thead> <tbody> <tr> <td> <p> <code class="computeroutput"><span class="identifier">Car</span></code> </p> </td> <td> <p> Any type </p> </td> <td> <p> The list's head type </p> </td> </tr> <tr> <td> <p> <code class="computeroutput"><span class="identifier">Cdr</span></code> </p> </td> <td> <p> A <code class="computeroutput"><span class="identifier">cons</span></code> </p> </td> <td> <p> The list's tail type (optional) </p> </td> </tr> </tbody> </table></div> <a name="fusion.container.generation.metafunctions.make_cons.expression_semantics"></a><h6> <a name="id974672"></a> <a class="link" href="make_cons.html#fusion.container.generation.metafunctions.make_cons.expression_semantics">Expression Semantics</a> </h6> <pre class="programlisting"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">make_cons</span><span class="special"><</span><span class="identifier">Car</span><span class="special">,</span> <span class="identifier">Cdr</span><span class="special">>::</span><span class="identifier">type</span> </pre> <p> <span class="bold"><strong>Return type</strong></span>: A <a class="link" href="../../cons.html" title="cons"><code class="computeroutput"><span class="identifier">cons</span></code></a> with head element, <code class="computeroutput"><span class="identifier">Car</span></code>, of type converted following the rules for <a class="link" href="../../../notes.html#fusion.notes.element_conversion"><span class="emphasis"><em>element conversion</em></span></a>, and tail, <code class="computeroutput"><span class="identifier">Cdr</span></code>. </p> <p> <span class="bold"><strong>Semantics</strong></span>: Create a <a class="link" href="../../cons.html" title="cons"><code class="computeroutput"><span class="identifier">cons</span></code></a> from <code class="computeroutput"><span class="identifier">Car</span></code> (<span class="emphasis"><em>head</em></span>) and optional <code class="computeroutput"><span class="identifier">Cdr</span></code> (<span class="emphasis"><em>tail</em></span>). </p> <a name="fusion.container.generation.metafunctions.make_cons.header"></a><h6> <a name="id974806"></a> <a class="link" href="make_cons.html#fusion.container.generation.metafunctions.make_cons.header">Header</a> </h6> <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">container</span><span class="special">/</span><span class="identifier">generation</span><span class="special">/</span><span class="identifier">make_cons</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">make_cons</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> </pre> <a name="fusion.container.generation.metafunctions.make_cons.example"></a><h6> <a name="id974926"></a> <a class="link" href="make_cons.html#fusion.container.generation.metafunctions.make_cons.example">Example</a> </h6> <pre class="programlisting"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">make_cons</span><span class="special"><</span><span class="keyword">char</span><span class="special">,</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">make_cons</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">type</span><span class="special">>::</span><span class="identifier">type</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="make_list.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="make_vector.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>