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122 lines
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<title>as_map</title>
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<link rel="start" href="../../../../index.html" title="Chapter 1. Fusion 2.0">
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<a accesskey="p" href="as_set.html"><img src="../../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../images/home.png" alt="Home"></a><a accesskey="n" href="../metafunctions.html"><img src="../../../../images/next.png" alt="Next"></a>
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<div class="section" lang="en">
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<div class="titlepage"><div><div><h5 class="title">
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<a name="fusion.sequences.conversion.functions.as_map"></a><a href="as_map.html" title="as_map">as_map</a></h5></div></div></div>
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<a name="fusion.sequences.conversion.functions.as_map.description"></a><h6>
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<a name="id538011"></a>
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<a href="as_map.html#fusion.sequences.conversion.functions.as_map.description">Description</a>
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</h6>
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<p>
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Convert a fusion sequence to a <a href="../../containers/map.html" title="map"><tt class="computeroutput"><span class="identifier">map</span></tt></a>.
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</p>
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<a name="fusion.sequences.conversion.functions.as_map.synopsis"></a><h6>
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<a name="id538058"></a>
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<a href="as_map.html#fusion.sequences.conversion.functions.as_map.synopsis">Synopsis</a>
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</h6>
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<pre class="programlisting">
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<span class="keyword">template</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="keyword">typename</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">as_map</span><span class="special"><</span><span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">type</span>
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<span class="identifier">as_map</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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<span class="keyword">template</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="keyword">typename</span> <span class="identifier">result_of</span><span class="special">::</span><span class="identifier">as_map</span><span class="special"><</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">type</span>
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<span class="identifier">as_map</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.sequences.conversion.functions.as_map.parameters"></a><h6>
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<a name="id538314"></a>
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<a href="as_map.html#fusion.sequences.conversion.functions.as_map.parameters">Parameters</a>
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</h6>
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<div class="informaltable">
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<h4>
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<a name="id538336"></a>
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</h4>
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<table class="table">
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<colgroup>
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<col>
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<col>
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<col>
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</colgroup>
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<thead><tr>
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<th>Parameter</th>
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<th>Requirement</th>
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<th>Description</th>
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</tr></thead>
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<tbody><tr>
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<td><tt class="computeroutput"><span class="identifier">seq</span></tt></td>
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<td>An
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instance of Sequence</td>
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<td>The sequence to convert.</td>
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</tr></tbody>
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</table>
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</div>
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<a name="fusion.sequences.conversion.functions.as_map.expression_semantics"></a><h6>
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<a name="id538400"></a>
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<a href="as_map.html#fusion.sequences.conversion.functions.as_map.expression_semantics">Expression
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Semantics</a>
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</h6>
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<pre class="programlisting">
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<span class="identifier">as_map</span><span class="special">(</span><span class="identifier">seq</span><span class="special">);</span>
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</pre>
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<p>
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<span class="bold"><b>Return type</b></span>: <a href="../metafunctions/as_map.html" title="as_map"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">as_map</span></tt></a><tt class="computeroutput"><span class="special"><</span><span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">type</span></tt>
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</p>
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<p>
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<span class="bold"><b>Semantics</b></span>: Convert a fusion sequence,
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<tt class="computeroutput"><span class="identifier">seq</span></tt>, to a <a href="../../containers/map.html" title="map"><tt class="computeroutput"><span class="identifier">map</span></tt></a>.
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</p>
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<p>
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<span class="bold"><b>Precondition</b></span>: The elements of the sequence
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are assumed to be __fusion<span class="underline">pair</span>_s.
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There may be no duplicate <a href="../../../support/pair.html" title="pair"><tt class="computeroutput"><span class="identifier">fusion</span><span class="special">::</span><span class="identifier">pair</span></tt></a> key types.
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</p>
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<a name="fusion.sequences.conversion.functions.as_map.header"></a><h6>
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<a name="id538598"></a>
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<a href="as_map.html#fusion.sequences.conversion.functions.as_map.header">Header</a>
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</h6>
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<pre class="programlisting">
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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">sequence</span><span class="special">/</span><span class="identifier">conversion</span><span class="special">/</span><span class="identifier">as_map</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.sequences.conversion.functions.as_map.example"></a><h6>
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<a name="id538702"></a>
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<a href="as_map.html#fusion.sequences.conversion.functions.as_map.example">Example</a>
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</h6>
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<pre class="programlisting">
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<span class="identifier">as_map</span><span class="special">(</span><a href="../../generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span>
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<a href="../../../support/pair.html" title="pair"><tt class="computeroutput"><span class="identifier">make_pair</span></tt></a><span class="special"><</span><span class="keyword">int</span><span class="special">>(</span><span class="char">'X'</span><span class="special">)</span>
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<span class="special">,</span> <a href="../../../support/pair.html" title="pair"><tt class="computeroutput"><span class="identifier">make_pair</span></tt></a><span class="special"><</span><span class="keyword">double</span><span class="special">>(</span><span class="string">"Men"</span><span class="special">)))</span>
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</pre>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><small>Copyright © 2001-2005 Joel de Guzman, Dan Marsden</small></td>
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</tr></table>
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