<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>invoke_procedure</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="../functions.html" title="Functions"> <link rel="prev" href="invoke.html" title="invoke"> <link rel="next" href="invoke_fobj.html" title="invoke_function_object"> </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="invoke.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.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="invoke_fobj.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.functional.invocation.functions.invoke_proc"></a><a class="link" href="invoke_proc.html" title="invoke_procedure"> invoke_procedure</a> </h5></div></div></div> <a name="fusion.functional.invocation.functions.invoke_proc.description"></a><h6> <a name="id1109542"></a> <a class="link" href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.description">Description</a> </h6> <p> Calls a <a class="link" href="../../concepts/callable.html" title="Callable Object">Callable Object</a> with the arguments from a <a class="link" href="../../../sequence.html" title="Sequence">Sequence</a>. The result of the call is ignored. </p> <p> The first template parameter can be specialized explicitly to avoid copying and/or to control the const qualification of a function object. </p> <p> For pointers to class members corresponding object can be specified as a reference, pointer, or smart pointer. In case of the latter, a freestanding <code class="literal">get_pointer</code> function must be defined (Boost provides this function for <code class="literal">std::auto_ptr</code> and <a href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span></code></a>). </p> <p> The target function must not be a pointer to a member object (dereferencing such a pointer without returning anything does not make sense, so it isn't implemented). </p> <a name="fusion.functional.invocation.functions.invoke_proc.synopsis"></a><h6> <a name="id1109612"></a> <a class="link" href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.synopsis">Synopsis</a> </h6> <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Sequence</span> <span class="special">></span> <span class="keyword">typename</span> <a class="link" href="../metafunctions/invoke_proc.html" title="invoke_procedure"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_procedure</span></code></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Sequence</span> <span class="special">></span> <span class="keyword">typename</span> <a class="link" href="../metafunctions/invoke_proc.html" title="invoke_procedure"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_procedure</span></code></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span> </pre> <a name="fusion.functional.invocation.functions.invoke_proc.parameters"></a><h6> <a name="id1109880"></a> <a class="link" href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.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">f</span></code> </p> </td> <td> <p> Model of <a class="link" href="../../concepts/callable.html" title="Callable Object">Callable Object</a> </p> </td> <td> <p> The function to call. </p> </td> </tr> <tr> <td> <p> <code class="computeroutput"><span class="identifier">s</span></code> </p> </td> <td> <p> Model of <a class="link" href="../../../sequence/concepts/forward_sequence.html" title="Forward Sequence">Forward Sequence</a> </p> </td> <td> <p> The arguments. </p> </td> </tr> </tbody> </table></div> <a name="fusion.functional.invocation.functions.invoke_proc.expression_semantics"></a><h6> <a name="id1110014"></a> <a class="link" href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.expression_semantics">Expression Semantics</a> </h6> <pre class="programlisting"><span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">f</span><span class="special">,</span><span class="identifier">s</span><span class="special">);</span> </pre> <p> <span class="bold"><strong>Return type</strong></span>: <code class="computeroutput"><span class="keyword">void</span></code> </p> <p> <span class="bold"><strong>Semantics</strong></span>: Invokes <code class="computeroutput"><span class="identifier">f</span></code> with the elements in <code class="computeroutput"><span class="identifier">s</span></code> as arguments. </p> <a name="fusion.functional.invocation.functions.invoke_proc.header"></a><h6> <a name="id1110094"></a> <a class="link" href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.header">Header</a> </h6> <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">booost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">functional</span><span class="special">/</span><span class="identifier">invocation</span><span class="special">/</span><span class="identifier">invoke_procedure</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> </pre> <a name="fusion.functional.invocation.functions.invoke_proc.example"></a><h6> <a name="id1110168"></a> <a class="link" href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.example">Example</a> </h6> <pre class="programlisting"><a class="link" href="../../../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span> <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">lambda</span><span class="special">;</span> <span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">_1</span> <span class="special">+=</span> <span class="identifier">_2</span><span class="special">,</span> <span class="identifier">v</span><span class="special">);</span> <span class="identifier">assert</span><span class="special">(</span><a class="link" href="../../../sequence/intrinsic/functions/front.html" title="front"><code class="computeroutput"><span class="identifier">front</span></code></a><span class="special">(</span><span class="identifier">v</span><span class="special">)</span> <span class="special">==</span> <span class="number">3</span><span class="special">);</span> </pre> <a name="fusion.functional.invocation.functions.invoke_proc.see_also"></a><h6> <a name="id1110340"></a> <a class="link" href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.see_also">See also</a> </h6> <div class="itemizedlist"><ul class="itemizedlist" type="disc"> <li class="listitem"> <a class="link" href="invoke.html" title="invoke"><code class="computeroutput"><span class="identifier">invoke</span></code></a> </li> <li class="listitem"> <a class="link" href="invoke_fobj.html" title="invoke_function_object"><code class="computeroutput"><span class="identifier">invoke_function_object</span></code></a> </li> <li class="listitem"> <a class="link" href="../metafunctions/invoke_proc.html" title="invoke_procedure"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_procedure</span></code></a> </li> <li class="listitem"> <a class="link" href="../../adapters/fused_procedure.html" title="fused_procedure"><code class="computeroutput"><span class="identifier">fused_procedure</span></code></a> </li> <li class="listitem"> <a class="link" href="../../generation/functions/mk_fused_proc.html" title="make_fused_procedure"><code class="computeroutput"><span class="identifier">make_fused_procedure</span></code></a> </li> </ul></div> </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="invoke.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.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="invoke_fobj.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>