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<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
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<title>at_key</title>
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<link rel="up" href="../functions.html" title="Functions">
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<link rel="prev" href="has_key.html" title="has_key">
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<a name="fusion.sequence.intrinsic.functions.at_key"></a><a class="link" href="at_key.html" title="at_key">at_key</a>
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</h5></div></div></div>
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<a name="fusion.sequence.intrinsic.functions.at_key.description"></a><h6>
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<a name="id919035"></a>
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<a name="id802739"></a>
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<a class="link" href="at_key.html#fusion.sequence.intrinsic.functions.at_key.description">Description</a>
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</h6>
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<p>
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Returns the element associated with a Key from the sequence.
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</p>
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<a name="fusion.sequence.intrinsic.functions.at_key.synopsis"></a><h6>
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<a name="id919051"></a>
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<a name="id802768"></a>
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<a class="link" href="at_key.html#fusion.sequence.intrinsic.functions.at_key.synopsis">Synopsis</a>
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</h6>
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<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Key</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">></span>
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<span class="identifier">at_key</span><span class="special">(</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">seq</span><span class="special">);</span>
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</pre>
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<a name="fusion.sequence.intrinsic.functions.at_key.parameters"></a><h6>
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<a name="id919284"></a>
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<a name="id803099"></a>
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<a class="link" href="at_key.html#fusion.sequence.intrinsic.functions.at_key.parameters">Parameters</a>
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</h6>
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<div class="informaltable"><table class="table">
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</tbody>
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</table></div>
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<a name="fusion.sequence.intrinsic.functions.at_key.expression_semantics"></a><h6>
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<a name="id919413"></a>
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<a name="id803257"></a>
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<a class="link" href="at_key.html#fusion.sequence.intrinsic.functions.at_key.expression_semantics">Expression
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Semantics</a>
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</h6>
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with Key.
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</p>
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<a name="fusion.sequence.intrinsic.functions.at_key.header"></a><h6>
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<a name="id919553"></a>
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<a name="id803461"></a>
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<a class="link" href="at_key.html#fusion.sequence.intrinsic.functions.at_key.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">sequence</span><span class="special">/</span><span class="identifier">intrinsic</span><span class="special">/</span><span class="identifier">at_key</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">at_key</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.sequence.intrinsic.functions.at_key.example"></a><h6>
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<a name="id919668"></a>
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||||
<a name="id803627"></a>
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||||
<a class="link" href="at_key.html#fusion.sequence.intrinsic.functions.at_key.example">Example</a>
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||||
</h6>
|
||||
<pre class="programlisting"><a class="link" href="../../../container/set.html" title="set"><code class="computeroutput"><span class="identifier">set</span></code></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">,</span> <span class="keyword">bool</span><span class="special">></span> <span class="identifier">s</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="char">'x'</span><span class="special">,</span> <span class="keyword">true</span><span class="special">);</span>
|
||||
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