feedc0de/boost_fusion
1
0
Fork 0
forked from boostorg/fusion
Code Pull Requests Activity
Files
43f861ca8741be5089f2dadbcdc9e150a971f2c7
boost_fusion/doc/html/fusion/functional/concepts/def_callable.html
Hartmut Kaiser 7b89755a67 Fusion: fixed a couple of typos in docs 
[SVN r56472]
2009-09-29 14:48:36 +00:00

163 lines
10 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Deferred Callable Object</title>
<link rel="stylesheet" href="../../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.75.0">
<link rel="home" href="../../../index.html" title="Chapter 1. Fusion 2.0">
<link rel="up" href="../concepts.html" title="Concepts">
<link rel="prev" href="reg_callable.html" title="Regular Callable Object">
<link rel="next" href="poly.html" title="Polymorphic 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="../../../../../../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="reg_callable.html"><img src="../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.html"><img src="../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="poly.html"><img src="../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
<div class="section" title="Deferred Callable Object">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.concepts.def_callable"></a><a class="link" href="def_callable.html" title="Deferred Callable Object"> Deferred
Callable Object</a>
</h4></div></div></div>
<a name="fusion.functional.concepts.def_callable.description"></a><h6>
<a name="id747801"></a>
<a class="link" href="def_callable.html#fusion.functional.concepts.def_callable.description">Description</a>
</h6>
<p>
<a class="link" href="callable.html" title="Callable Object">Callable Object</a>
types that work with <a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top">Boost.ResultOf</a>
to determine the result of a call.
</p>
<a name="fusion.functional.concepts.def_callable.refinement_of"></a><h6>
<a name="id747827"></a>
<a class="link" href="def_callable.html#fusion.functional.concepts.def_callable.refinement_of">Refinement
of</a>
</h6>
<div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><a class="link" href="callable.html" title="Callable Object">Callable Object</a></li></ul></div>
<div class="sidebar">
<p class="title"><b></b></p>
<p>
note Once C++ supports the <code class="literal">decltype</code> keyword, all models
of <a class="link" href="callable.html" title="Callable Object">Callable Object</a>
will also be models of <a class="link" href="def_callable.html" title="Deferred Callable Object">Deferred
Callable Object</a>, because function objects won't need client-side
support for <code class="computeroutput"><span class="identifier">result_of</span></code>.
</p>
</div>
<div class="variablelist" title="Notation">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><code class="computeroutput"><span class="identifier">F</span></code></span></dt>
<dd><p>
A possibly const qualified Deferred Callable Object type
</p></dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code></span></dt>
<dd><p>
Argument types
</p></dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">a1</span>
<span class="special">...</span><span class="identifier">aN</span></code></span></dt>
<dd><p>
Objects or references to objects with types <code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code>
</p></dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span></code></span></dt>
<dd><p>
<code class="computeroutput"><span class="identifier">T</span></code>i is <code class="computeroutput"><span class="identifier">A</span></code>i <code class="computeroutput"><span class="special">&amp;</span></code>
if <code class="computeroutput"><span class="identifier">a</span></code>i is an LValue,
same as <code class="computeroutput"><span class="identifier">A</span></code>i, otherwise
</p></dd>
</dl>
</div>
<a name="fusion.functional.concepts.def_callable.expression_requirements"></a><h6>
<a name="id748042"></a>
<a class="link" href="def_callable.html#fusion.functional.concepts.def_callable.expression_requirements">Expression
requirements</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Type
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></code></a><code class="computeroutput"><span class="special">&lt;</span> <span class="identifier">F</span><span class="special">(</span><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span></code>
</p>
</td>
<td>
<p>
Result of a call with <code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code>-typed
arguments
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.concepts.def_callable.models"></a><h6>
<a name="id748179"></a>
<a class="link" href="def_callable.html#fusion.functional.concepts.def_callable.models">Models</a>
</h6>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
<a class="link" href="poly.html" title="Polymorphic Function Object">Polymorphic Function
Object</a> types
</li>
<li class="listitem">
member (function or data) pointer types
</li>
</ul></div>
<a name="fusion.functional.concepts.def_callable.examples"></a><h6>
<a name="id748209"></a>
<a class="link" href="def_callable.html#fusion.functional.concepts.def_callable.examples">Examples</a>
</h6>
<pre class="programlisting"><span class="special">&amp;</span> <span class="identifier">a_free_function</span>
<span class="special">&amp;</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_static_member_function</span>
<span class="special">&amp;</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_nonstatic_data_member</span>
<span class="special">&amp;</span> <span class="identifier">a_class</span><span class="special">::</span><span class="identifier">a_nonstatic_member_function</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;()</span>
<span class="comment">// using namespace boost;
</span><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">&lt;</span><span class="keyword">int</span><span class="special">&gt;(),</span> <span class="identifier">_1</span><span class="special">,</span> <span class="number">5</span><span class="special">)</span>
<span class="comment">// Note: Boost.Lambda expressions don't work with __boost_result_of__
</span><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">&lt;</span><span class="keyword">int</span><span class="special">&gt;())</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="reg_callable.html"><img src="../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.html"><img src="../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="poly.html"><img src="../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
</body>
</html>
View Git Blame Copy Permalink