1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Callable Object</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. Fusion 2.2"> 8<link rel="up" href="../concepts.html" title="Concepts"> 9<link rel="prev" href="../concepts.html" title="Concepts"> 10<link rel="next" href="reg_callable.html" title="Regular Callable Object"> 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="../concepts.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.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="reg_callable.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="fusion.functional.concepts.callable"></a><a class="link" href="callable.html" title="Callable Object">Callable Object</a> 28</h4></div></div></div> 29<h6> 30<a name="fusion.functional.concepts.callable.h0"></a> 31 <span class="phrase"><a name="fusion.functional.concepts.callable.description"></a></span><a class="link" href="callable.html#fusion.functional.concepts.callable.description">Description</a> 32 </h6> 33<p> 34 A pointer to a function, a pointer to member function, a pointer to member 35 data, or a class type whose objects can appear immediately to the left 36 of a function call operator. 37 </p> 38<h6> 39<a name="fusion.functional.concepts.callable.h1"></a> 40 <span class="phrase"><a name="fusion.functional.concepts.callable.models"></a></span><a class="link" href="callable.html#fusion.functional.concepts.callable.models">Models</a> 41 </h6> 42<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 43<li class="listitem"> 44 function pointer types 45 </li> 46<li class="listitem"> 47 member (function or data) pointer types 48 </li> 49<li class="listitem"> 50 all kinds of function objects 51 </li> 52</ul></div> 53<h6> 54<a name="fusion.functional.concepts.callable.h2"></a> 55 <span class="phrase"><a name="fusion.functional.concepts.callable.examples"></a></span><a class="link" href="callable.html#fusion.functional.concepts.callable.examples">Examples</a> 56 </h6> 57<pre class="programlisting"><span class="special">&</span> <span class="identifier">a_free_function</span> 58<span class="special">&</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_static_member_function</span> 59<span class="special">&</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_nonstatic_data_member</span> 60<span class="special">&</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_nonstatic_member_function</span> 61<span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special"><</span><span class="keyword">int</span><span class="special">>()</span> 62<span class="comment">// using namespace boost;</span> 63<span class="identifier">bind</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special"><</span><span class="keyword">int</span><span class="special">>(),</span> <span class="identifier">_1</span><span class="special">,</span> <span class="number">5</span><span class="special">)</span> 64<span class="identifier">lambda</span><span class="special">::</span><span class="identifier">_1</span> <span class="special">+=</span> <span class="identifier">lambda</span><span class="special">::</span><span class="identifier">_2</span><span class="special">;</span> 65<span class="identifier">fusion</span><span class="special">::</span><a class="link" href="../generation/functions/mk_fused_fobj.html" title="make_fused_function_object"><code class="computeroutput"><span class="identifier">make_fused_function_object</span></code></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special"><</span><span class="keyword">int</span><span class="special">>())</span> 66</pre> 67</div> 68<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 69<td align="left"></td> 70<td align="right"><div class="copyright-footer">Copyright © 2001-2006, 2011, 2012 Joel de Guzman, 71 Dan Marsden, Tobias Schwinger<p> 72 Distributed under the Boost Software License, Version 1.0. (See accompanying 73 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>) 74 </p> 75</div></td> 76</tr></table> 77<hr> 78<div class="spirit-nav"> 79<a accesskey="p" href="../concepts.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.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="reg_callable.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 80</div> 81</body> 82</html> 83
