forked from boostorg/fusion
fix for #2355: discrepancy between std::accumulate and fusion::accumulate
[SVN r57125]
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>find</title>
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<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.75.0">
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<meta name="generator" content="DocBook XSL Stylesheets V1.75.1">
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<link rel="home" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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<link rel="up" href="../functions.html" title="Functions">
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<link rel="prev" href="none.html" title="none">
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<a name="fusion.algorithm.query.functions.find"></a><a class="link" href="find.html" title="find">find</a>
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</h5></div></div></div>
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<a name="fusion.algorithm.query.functions.find.description"></a><h6>
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<a class="link" href="find.html#fusion.algorithm.query.functions.find.description">Description</a>
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</h6>
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<p>
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Finds the first element of a given type within a sequence.
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</p>
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<a name="fusion.algorithm.query.functions.find.synopsis"></a><h6>
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<a class="link" href="find.html#fusion.algorithm.query.functions.find.synopsis">Synopsis</a>
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</h6>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
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<span class="emphasis"><em>unspecified</em></span> <span class="identifier">find</span><span class="special">(</span><span class="identifier">Sequence</span><span class="special">&</span> <span class="identifier">seq</span><span class="special">);</span>
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</pre>
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<div class="table">
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<a name="id685397"></a><p class="title"><b>Table<EFBFBD>1.42.<2E>Parameters</b></p>
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<a name="id800124"></a><p class="title"><b>Table<EFBFBD>1.42.<2E>Parameters</b></p>
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<div class="table-contents"><table class="table" summary="Parameters">
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<colgroup>
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<col>
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</table></div>
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</div>
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<br class="table-break"><a name="fusion.algorithm.query.functions.find.expression_semantics"></a><h6>
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<a class="link" href="find.html#fusion.algorithm.query.functions.find.expression_semantics">Expression
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Semantics</a>
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</h6>
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to <code class="computeroutput"><a class="link" href="find_if.html" title="find_if"><code class="computeroutput"><span class="identifier">find_if</span></code></a><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">_</span><span class="special">,</span> <span class="identifier">T</span><span class="special">></span> <span class="special">>(</span><span class="identifier">seq</span><span class="special">)</span></code>
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</p>
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<a name="fusion.algorithm.query.functions.find.complexity"></a><h6>
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<a name="id685682"></a>
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<a name="id800408"></a>
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<a class="link" href="find.html#fusion.algorithm.query.functions.find.complexity">Complexity</a>
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</h6>
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<p>
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Linear. At most <code class="computeroutput"><a class="link" href="../../../sequence/intrinsic/metafunctions/size.html" title="size"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">size</span></code></a><span class="special"><</span><span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">value</span></code> comparisons.
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</p>
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<a name="fusion.algorithm.query.functions.find.header"></a><h6>
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<a name="id685732"></a>
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<a class="link" href="find.html#fusion.algorithm.query.functions.find.header">Header</a>
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</h6>
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<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</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">></span>
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<span class="preprocessor">#include</span> <span class="special"><</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">></span>
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</pre>
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<a name="fusion.algorithm.query.functions.find.example"></a><h6>
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<a class="link" href="find.html#fusion.algorithm.query.functions.find.example">Example</a>
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</h6>
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<pre class="programlisting"><span class="keyword">const</span> <a class="link" href="../../../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special"><</span><span class="keyword">char</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">vec</span><span class="special">(</span><span class="char">'a'</span><span class="special">,</span><span class="char">'0'</span><span class="special">);</span>
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