1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Binding Functions</title> 5<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../index.html" title="Chapter 1. Phoenix 3.2.0"> 8<link rel="up" href="../bind.html" title="Bind"> 9<link rel="prev" href="binding_function_objects.html" title="Binding Function Objects"> 10<link rel="next" href="binding_member_functions.html" title="Binding Member Functions"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="binding_function_objects.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../bind.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="binding_member_functions.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h4 class="title"> 27<a name="phoenix.modules.bind.binding_functions"></a><a class="link" href="binding_functions.html" title="Binding Functions">Binding Functions</a> 28</h4></div></div></div> 29<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">bind</span><span class="special">/</span><span class="identifier">bind_function</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 30</pre> 31<p> 32 Example, given a function <code class="computeroutput"><span class="identifier">foo</span></code>: 33 </p> 34<pre class="programlisting"><span class="keyword">void</span> <span class="identifier">foo</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">n</span><span class="special">)</span> 35<span class="special">{</span> 36 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">n</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 37<span class="special">}</span> 38</pre> 39<p> 40 Here's how the function <code class="computeroutput"><span class="identifier">foo</span></code> 41 may be bound: 42 </p> 43<pre class="programlisting"><span class="identifier">bind</span><span class="special">(&</span><span class="identifier">foo</span><span class="special">,</span> <span class="identifier">arg1</span><span class="special">)</span> 44</pre> 45<p> 46 This is now a full-fledged expression that can finally be evaluated by 47 another function call invocation. A second function call will invoke the 48 actual <code class="computeroutput"><span class="identifier">foo</span></code> function. Example: 49 </p> 50<pre class="programlisting"><span class="identifier">bind</span><span class="special">(&</span><span class="identifier">foo</span><span class="special">,</span> <span class="identifier">arg1</span><span class="special">)(</span><span class="number">4</span><span class="special">);</span> 51</pre> 52<p> 53 will print out "4". 54 </p> 55</div> 56<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 57<td align="left"></td> 58<td align="right"><div class="copyright-footer">Copyright © 2002-2005, 2010, 2014, 2015 Joel de Guzman, Dan Marsden, Thomas 59 Heller, John Fletcher<p> 60 Distributed under the Boost Software License, Version 1.0. (See accompanying 61 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>) 62 </p> 63</div></td> 64</tr></table> 65<hr> 66<div class="spirit-nav"> 67<a accesskey="p" href="binding_function_objects.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../bind.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="binding_member_functions.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 68</div> 69</body> 70</html> 71
