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update for trac #1893

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[SVN r53856]
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Joel de Guzman
2009-06-13 06:29:32 +00:00
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doc/html/fusion/sequence/intrinsic/metafunctions/has_key.html
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@ -3,10 +3,10 @@
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>has_key</title>
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.65.1">
<link rel="home" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
<link rel="up" href="../metafunctions.html" title="Metafunctions">
<link rel="prev" href="value_at_c.html" title="value_at_c">
<link rel="previous" href="value_at_c.html" title="value_at_c">
<link rel="next" href="at_key.html" title="at_key">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@ -23,17 +23,21 @@
<a accesskey="p" href="value_at_c.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="at_key.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.sequence.intrinsic.metafunctions.has_key"></a><a href="has_key.html" title="has_key">has_key</a></h5></div></div></div>
<div class="titlepage">
<div><div><h5 class="title">
<a name="fusion.sequence.intrinsic.metafunctions.has_key"></a><a href="has_key.html" title="has_key">has_key</a>
</h5></div></div>
<div></div>
</div>
<a name="fusion.sequence.intrinsic.metafunctions.has_key.description"></a><h6>
<a name="id1039990"></a>
<a name="id466829"></a>
<a href="has_key.html#fusion.sequence.intrinsic.metafunctions.has_key.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/has_key.html" title="has_key"><code class="computeroutput"><span class="identifier">has_key</span></code></a>.
Returns the result type of <a href="../functions/has_key.html" title="has_key"><tt class="computeroutput"><span class="identifier">has_key</span></tt></a>.
</p>
<a name="fusion.sequence.intrinsic.metafunctions.has_key.synopsis"></a><h6>
<a name="id1040034"></a>
<a name="id466877"></a>
<a href="has_key.html#fusion.sequence.intrinsic.metafunctions.has_key.synopsis">Synopsis</a>
</h6>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span>
@ -45,7 +49,7 @@
<span class="special">};</span>
</pre>
<div class="table">
<a name="id1040137"></a><p class="title"><b>Table<EFBFBD>1.29.<2E>Parameters</b></p>
<a name="id466993"></a><p class="title"><b>Table<EFBFBD>1.29.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<colgroup>
<col>
@ -53,89 +57,71 @@
<col>
</colgroup>
<thead><tr>
<th>
<p>
<th><p>
Parameter
</p>
</th>
<th>
<p>
</p></th>
<th><p>
Requirement
</p>
</th>
<th>
<p>
</p></th>
<th><p>
Description
</p>
</th>
</p></th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">Seq</span></code>
</p>
</td>
<td>
<p>
<td><p>
<tt class="computeroutput"><span class="identifier">Seq</span></tt>
</p></td>
<td><p>
A model of <a href="../../concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>
</p>
</td>
<td>
<p>
</p></td>
<td><p>
Argument sequence
</p>
</td>
</p></td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">Key</span></code>
</p>
</td>
<td>
<p>
<td><p>
<tt class="computeroutput"><span class="identifier">Key</span></tt>
</p></td>
<td><p>
Any type
</p>
</td>
<td>
<p>
</p></td>
<td><p>
Key type
</p>
</td>
</p></td>
</tr>
</tbody>
</table>
</div>
<a name="fusion.sequence.intrinsic.metafunctions.has_key.expression_semantics"></a><h6>
<a name="id1040261"></a>
<a name="id467130"></a>
<a href="has_key.html#fusion.sequence.intrinsic.metafunctions.has_key.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">has_key</span><span class="special">&lt;</span><span class="identifier">Seq</span><span class="special">,</span> <span class="identifier">Key</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><strong>Return type</strong></span>: An <a href="http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html" target="_top">MPL
<span class="bold"><b>Return type</b></span>: An <a href="http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html" target="_top">MPL
Integral Constant</a>.
</p>
<p>
<span class="bold"><strong>Semantics</strong></span>: Returns <code class="computeroutput"><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></code>
if <code class="computeroutput"><span class="identifier">Seq</span></code> contains an element
with key type <code class="computeroutput"><span class="identifier">Key</span></code>, returns
<code class="computeroutput"><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">false_</span></code> otherwise.
<span class="bold"><b>Semantics</b></span>: Returns <tt class="computeroutput"><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">true_</span></tt>
if <tt class="computeroutput"><span class="identifier">Seq</span></tt> contains an element
with key type <tt class="computeroutput"><span class="identifier">Key</span></tt>, returns
<tt class="computeroutput"><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">false_</span></tt> otherwise.
</p>
<p>
/sequence/intrinsic/has_key.hpp&gt;
</p>
<a name="fusion.sequence.intrinsic.metafunctions.has_key.example"></a><h6>
<a name="id1040422"></a>
<a name="id467310"></a>
<a href="has_key.html#fusion.sequence.intrinsic.metafunctions.has_key.example">Example</a>
</h6>
<pre class="programlisting"><span class="keyword">typedef</span> <a href="../../../container/map.html" title="map"><code class="computeroutput"><span class="identifier">map</span></code></a><span class="special">&lt;</span><a href="../../../support/pair.html" title="pair"><code class="computeroutput"><span class="identifier">pair</span></code></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;,</span> <a href="../../../support/pair.html" title="pair"><code class="computeroutput"><span class="identifier">pair</span></code></a><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;,</span> <a href="../../../support/pair.html" title="pair"><code class="computeroutput"><span class="identifier">pair</span></code></a><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">mymap</span><span class="special">;</span>
<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><a href="has_key.html" title="has_key"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">has_key</span></code></a><span class="special">&lt;</span><span class="identifier">mymap</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&gt;));</span>
<span class="identifier">BOOST_MPL_ASSERT_NOT</span><span class="special">((</span><a href="has_key.html" title="has_key"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">has_key</span></code></a><span class="special">&lt;</span><span class="identifier">mymap</span><span class="special">,</span> <span class="keyword">void</span><span class="special">*&gt;));</span>
<pre class="programlisting"><span class="keyword">typedef</span> <a href="../../../container/map.html" title="map"><tt class="computeroutput"><span class="identifier">map</span></tt></a><span class="special">&lt;</span><a href="../../../support/pair.html" title="pair"><tt class="computeroutput"><span class="identifier">pair</span></tt></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;,</span> <a href="../../../support/pair.html" title="pair"><tt class="computeroutput"><span class="identifier">pair</span></tt></a><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;,</span> <a href="../../../support/pair.html" title="pair"><tt class="computeroutput"><span class="identifier">pair</span></tt></a><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span> <span class="keyword">char</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">mymap</span><span class="special">;</span>
<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><a href="has_key.html" title="has_key"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">has_key</span></tt></a><span class="special">&lt;</span><span class="identifier">mymap</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&gt;));</span>
<span class="identifier">BOOST_MPL_ASSERT_NOT</span><span class="special">((</span><a href="has_key.html" title="has_key"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">has_key</span></tt></a><span class="special">&lt;</span><span class="identifier">mymap</span><span class="special">,</span> <span class="keyword">void</span><span class="special">*&gt;));</span>
</pre>
</div>
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