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[SVN r41370]
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Beman Dawes
2007-11-25 18:38:02 +00:00
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>all</title>
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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<table cellpadding="2" width="100%"><tr>
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<a accesskey="p" href="any.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="none.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithm.query.metafunctions.all"></a><a href="all.html" title="all">all</a></h5></div></div></div>
<a name="fusion.algorithm.query.metafunctions.all.description"></a><h6>
<a name="id592113"></a>
<a href="all.html#fusion.algorithm.query.metafunctions.all.description">Description</a>
</h6>
<p>
A metafunction returning the result type of <a href="../functions/all.html" title="all"><tt class="computeroutput"><span class="identifier">all</span></tt></a>.
</p>
<a name="fusion.algorithm.query.metafunctions.all.synopsis"></a><h6>
<a name="id592162"></a>
<a href="all.html#fusion.algorithm.query.metafunctions.all.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">all</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">bool</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id592284"></a><p class="title"><b>Table<EFBFBD>1.47.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<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>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">F</span></tt>
</p>
</td>
<td>
<p>
A model of unary <a href="../../../functional/concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithm.query.metafunctions.all.expression_semantics"></a><h6>
<a name="id592432"></a>
<a href="all.html#fusion.algorithm.query.metafunctions.all.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="all.html" title="all"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">all</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/all.html" title="all"><tt class="computeroutput"><span class="identifier">all</span></tt></a>
given a sequence of type <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
and a unary <a href="../../../functional/concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
The return type is always <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<a name="fusion.algorithm.query.metafunctions.all.complexity"></a><h6>
<a name="id592620"></a>
<a href="all.html#fusion.algorithm.query.metafunctions.all.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithm.query.metafunctions.all.header"></a><h6>
<a name="id592651"></a>
<a href="all.html#fusion.algorithm.query.metafunctions.all.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">all</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">all</span><span class="special">.</span><span class="identifier">hpp</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 <20> 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="any.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="none.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>any</title>
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
<link rel="up" href="../metafunctions.html" title="Metafunctions">
<link rel="prev" href="../metafunctions.html" title="Metafunctions">
<link rel="next" href="all.html" title="all">
</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.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libraries.htm">Libraries</a></td>
<td align="center"><a href="../../../../../../../../people/people.htm">People</a></td>
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<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="../metafunctions.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="all.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithm.query.metafunctions.any"></a><a href="any.html" title="any">any</a></h5></div></div></div>
<a name="fusion.algorithm.query.metafunctions.any.description"></a><h6>
<a name="id591386"></a>
<a href="any.html#fusion.algorithm.query.metafunctions.any.description">Description</a>
</h6>
<p>
A metafunction returning the result type of <a href="../functions/any.html" title="any"><tt class="computeroutput"><span class="identifier">any</span></tt></a>.
</p>
<a name="fusion.algorithm.query.metafunctions.any.synopsis"></a><h6>
<a name="id591435"></a>
<a href="any.html#fusion.algorithm.query.metafunctions.any.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">any</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">bool</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id591556"></a><p class="title"><b>Table<EFBFBD>1.46.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<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>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">F</span></tt>
</p>
</td>
<td>
<p>
A model of unary <a href="../../../functional/concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithm.query.metafunctions.any.expression_semantics"></a><h6>
<a name="id591706"></a>
<a href="any.html#fusion.algorithm.query.metafunctions.any.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="any.html" title="any"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">any</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/any.html" title="any"><tt class="computeroutput"><span class="identifier">any</span></tt></a>
given a sequence of type <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
and a unary <a href="../../../functional/concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
The return type is always <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<a name="fusion.algorithm.query.metafunctions.any.complexity"></a><h6>
<a name="id591895"></a>
<a href="any.html#fusion.algorithm.query.metafunctions.any.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithm.query.metafunctions.any.header"></a><h6>
<a name="id591925"></a>
<a href="any.html#fusion.algorithm.query.metafunctions.any.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">any</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">any</span><span class="special">.</span><span class="identifier">hpp</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 <20> 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="../metafunctions.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="all.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
</body>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>count</title>
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
<link rel="up" href="../metafunctions.html" title="Metafunctions">
<link rel="prev" href="find_if.html" title="find_if">
<link rel="next" href="count_if.html" title="count_if">
</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.htm">Home</a></td>
<td align="center"><a href="../../../../../../../libraries.htm">Libraries</a></td>
<td align="center"><a href="../../../../../../../../people/people.htm">People</a></td>
<td align="center"><a href="../../../../../../../../more/faq.htm">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="find_if.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="count_if.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithm.query.metafunctions.count"></a><a href="count.html" title="count">count</a></h5></div></div></div>
<a name="fusion.algorithm.query.metafunctions.count.description"></a><h6>
<a name="id595138"></a>
<a href="count.html#fusion.algorithm.query.metafunctions.count.description">Description</a>
</h6>
<p>
A metafunction that returns the result type of <tt class="computeroutput"><span class="identifier">count</span></tt>
given the sequence and search types.
</p>
<a name="fusion.algorithm.query.metafunctions.count.synopsis"></a><h6>
<a name="id595182"></a>
<a href="count.html#fusion.algorithm.query.metafunctions.count.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">count</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">int</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id595303"></a><p class="title"><b>Table<EFBFBD>1.51.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Requirement
</p>
</th>
<th>
<p>
heading Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">T</span></tt>
</p>
</td>
<td>
<p>
Any type
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithm.query.metafunctions.count.expression_semantics"></a><h6>
<a name="id595442"></a>
<a href="count.html#fusion.algorithm.query.metafunctions.count.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="count.html" title="count"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">count</span></tt></a><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/count.html" title="count"><tt class="computeroutput"><span class="identifier">count</span></tt></a>. The return type is always
<tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<a name="fusion.algorithm.query.metafunctions.count.complexity"></a><h6>
<a name="id595586"></a>
<a href="count.html#fusion.algorithm.query.metafunctions.count.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithm.query.metafunctions.count.header"></a><h6>
<a name="id595615"></a>
<a href="count.html#fusion.algorithm.query.metafunctions.count.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">count</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">count</span><span class="special">.</span><span class="identifier">hpp</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 <20> 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="find_if.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="count_if.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
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<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithm.query.metafunctions.count_if"></a><a href="count_if.html" title="count_if">count_if</a></h5></div></div></div>
<a name="fusion.algorithm.query.metafunctions.count_if.description"></a><h6>
<a name="id595806"></a>
<a href="count_if.html#fusion.algorithm.query.metafunctions.count_if.description">Description</a>
</h6>
<p>
A metafunction that returns the result type of <tt class="computeroutput"><span class="identifier">count_if</span></tt>
given the sequence and predicate types.
</p>
<a name="fusion.algorithm.query.metafunctions.count_if.synopsis"></a><h6>
<a name="id595850"></a>
<a href="count_if.html#fusion.algorithm.query.metafunctions.count_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">count_if</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">int</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id595972"></a><p class="title"><b>Table<EFBFBD>1.52.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<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>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Pred</span></tt>
</p>
</td>
<td>
<p>
A unary function object
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithm.query.metafunctions.count_if.expression_semantics"></a><h6>
<a name="id596114"></a>
<a href="count_if.html#fusion.algorithm.query.metafunctions.count_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="count_if.html" title="count_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">count_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/count_if.html" title="count_if"><tt class="computeroutput"><span class="identifier">count_if</span></tt></a>. The return type is
always <tt class="computeroutput"><span class="keyword">int</span></tt>.
</p>
<a name="fusion.algorithm.query.metafunctions.count_if.complexity"></a><h6>
<a name="id596270"></a>
<a href="count_if.html#fusion.algorithm.query.metafunctions.count_if.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithm.query.metafunctions.count_if.header"></a><h6>
<a name="id596300"></a>
<a href="count_if.html#fusion.algorithm.query.metafunctions.count_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">count_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">count_if</span><span class="special">.</span><span class="identifier">hpp</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 <20> 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>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithm.query.metafunctions.find"></a><a href="find.html" title="find">find</a></h5></div></div></div>
<a name="fusion.algorithm.query.metafunctions.find.description"></a><h6>
<a name="id593568"></a>
<a href="find.html#fusion.algorithm.query.metafunctions.find.description">Description</a>
</h6>
<p>
Returns the result type of <tt class="computeroutput"><span class="identifier">find</span></tt>,
given the sequence and search types.
</p>
<a name="fusion.algorithm.query.metafunctions.find.synopsis"></a><h6>
<a name="id593612"></a>
<a href="find.html#fusion.algorithm.query.metafunctions.find.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">T</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">find</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id593731"></a><p class="title"><b>Table<EFBFBD>1.49.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<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>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
Model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">T</span></tt>
</p>
</td>
<td>
<p>
Any type
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithm.query.metafunctions.find.expression_semantics"></a><h6>
<a name="id593870"></a>
<a href="find.html#fusion.algorithm.query.metafunctions.find.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="find.html" title="find"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">find</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
category as the iterators of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
first element of type <tt class="computeroutput"><span class="identifier">T</span></tt>
in <tt class="computeroutput"><span class="identifier">Sequence</span></tt>, or <tt class="computeroutput"><a href="../../../sequence/intrinsic/metafunctions/end.html" title="end"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">end</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span></tt>
if there is no such element.
</p>
<a name="fusion.algorithm.query.metafunctions.find.complexity"></a><h6>
<a name="id594074"></a>
<a href="find.html#fusion.algorithm.query.metafunctions.find.complexity">Complexity</a>
</h6>
<p>
Linear, at most <tt class="computeroutput"><a href="../../../sequence/intrinsic/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithm.query.metafunctions.find.header"></a><h6>
<a name="id594157"></a>
<a href="find.html#fusion.algorithm.query.metafunctions.find.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">find</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">find</span><span class="special">.</span><span class="identifier">hpp</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 <20> 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="none.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="find_if.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td>
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</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithm.query.metafunctions.find_if"></a><a href="find_if.html" title="find_if">find_if</a></h5></div></div></div>
<a name="fusion.algorithm.query.metafunctions.find_if.description"></a><h6>
<a name="id594349"></a>
<a href="find_if.html#fusion.algorithm.query.metafunctions.find_if.description">Description</a>
</h6>
<p>
Returns the result type of <tt class="computeroutput"><span class="identifier">find_if</span></tt>
given the sequence and predicate types.
</p>
<a name="fusion.algorithm.query.metafunctions.find_if.synopsis"></a><h6>
<a name="id594393"></a>
<a href="find_if.html#fusion.algorithm.query.metafunctions.find_if.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Pred</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">find_if</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id594512"></a><p class="title"><b>Table<EFBFBD>1.50.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<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>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">Pred</span></tt>
</p>
</td>
<td>
<p>
A model of <a href="http://www.boost.org/libs/mpl/doc/refmanual/lambda-expression.html" target="_top">MPL
Lambda Expression</a>
</p>
</td>
<td>
<p>
Operation's arguments
</p>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithm.query.metafunctions.find_if.expression_semantics"></a><h6>
<a name="id594661"></a>
<a href="find_if.html#fusion.algorithm.query.metafunctions.find_if.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="find_if.html" title="find_if"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">find_if</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">Pred</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: A model of the same iterator
category as the iterators of <tt class="computeroutput"><span class="identifier">Sequence</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns an iterator to the
first element in <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
for which <tt class="computeroutput"><span class="identifier">Pred</span></tt> evaluates
to true. Returns <tt class="computeroutput"><a href="../../../sequence/intrinsic/metafunctions/end.html" title="end"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">end</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">type</span></tt> if there is no such element.
</p>
<a name="fusion.algorithm.query.metafunctions.find_if.complexity"></a><h6>
<a name="id594865"></a>
<a href="find_if.html#fusion.algorithm.query.metafunctions.find_if.complexity">Complexity</a>
</h6>
<p>
Linear. At most <tt class="computeroutput"><a href="../../../sequence/intrinsic/metafunctions/size.html" title="size"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">&gt;::</span><span class="identifier">value</span></tt> comparisons.
</p>
<a name="fusion.algorithm.query.metafunctions.find_if.header"></a><h6>
<a name="id594949"></a>
<a href="find_if.html#fusion.algorithm.query.metafunctions.find_if.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">find_if</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">find_if</span><span class="special">.</span><span class="identifier">hpp</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 <20> 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>
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<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.algorithm.query.metafunctions.none"></a><a href="none.html" title="none">none</a></h5></div></div></div>
<a name="fusion.algorithm.query.metafunctions.none.description"></a><h6>
<a name="id592839"></a>
<a href="none.html#fusion.algorithm.query.metafunctions.none.description">Description</a>
</h6>
<p>
A metafunction returning the result type of <a href="../functions/none.html" title="none"><tt class="computeroutput"><span class="identifier">none</span></tt></a>.
</p>
<a name="fusion.algorithm.query.metafunctions.none.synopsis"></a><h6>
<a name="id592888"></a>
<a href="none.html#fusion.algorithm.query.metafunctions.none.synopsis">Synopsis</a>
</h6>
<pre class="programlisting">
<span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">F</span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">none</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="keyword">bool</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<div class="table">
<a name="id593009"></a><p class="title"><b>Table<EFBFBD>1.48.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<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>
<tt class="computeroutput"><span class="identifier">Sequence</span></tt>
</p>
</td>
<td>
<p>
A model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">F</span></tt>
</p>
</td>
<td>
<p>
A model of unary <a href="../../../functional/concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a>
</p>
</td>
<td>
<p>
Operation's argument
</p>
</td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.algorithm.query.metafunctions.none.expression_semantics"></a><h6>
<a name="id593157"></a>
<a href="none.html#fusion.algorithm.query.metafunctions.none.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting">
<a href="none.html" title="none"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">none</span></tt></a><span class="special">&lt;</span><span class="identifier">Sequence</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the return type of
<a href="../functions/none.html" title="none"><tt class="computeroutput"><span class="identifier">none</span></tt></a>
given a sequence of type <tt class="computeroutput"><span class="identifier">Sequence</span></tt>
and a unary <a href="../../../functional/concepts/poly.html" title=" Polymorphic Function
Object">Polymorphic
Function Object</a> of type <tt class="computeroutput"><span class="identifier">F</span></tt>.
The return type is always <tt class="computeroutput"><span class="keyword">bool</span></tt>.
</p>
<a name="fusion.algorithm.query.metafunctions.none.complexity"></a><h6>
<a name="id593346"></a>
<a href="none.html#fusion.algorithm.query.metafunctions.none.complexity">Complexity</a>
</h6>
<p>
Constant.
</p>
<a name="fusion.algorithm.query.metafunctions.none.header"></a><h6>
<a name="id593375"></a>
<a href="none.html#fusion.algorithm.query.metafunctions.none.header">Header</a>
</h6>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">algorithm</span><span class="special">/</span><span class="identifier">query</span><span class="special">/</span><span class="identifier">none</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">none</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
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<td align="right"><div class="copyright-footer">Copyright <20> 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>)
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