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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Polymorphic
Function Object</title>
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<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.algorithms.concepts.polymorphic_function_object"></a><a href="polymorphic_function_object.html" title="Polymorphic
Function Object">Polymorphic
Function Object</a></h4></div></div></div>
<a name="fusion.algorithms.concepts.polymorphic_function_object.description"></a><h5>
<a name="id545619"></a>
<a href="polymorphic_function_object.html#fusion.algorithms.concepts.polymorphic_function_object.description">Description</a>
</h5>
<p>
A type of function object with a nested metafunction <tt class="computeroutput"><span class="identifier">result</span></tt>.
<tt class="computeroutput"><span class="identifier">result</span></tt> returns the result
type of calling the function object, given the argument types.
</p>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">F</span></tt></span></dt>
<dd>
A Polymorphic Function Object type
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">f</span></tt></span></dt>
<dd>
A Polymorphic Function Object
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span></tt></span></dt>
<dd>
Arbitrary types
</dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">t1</span>
<span class="special">...</span><span class="identifier">tN</span></tt></span></dt>
<dd>
Objects with types <tt class="computeroutput"><span class="identifier">T1</span> <span class="special">...</span><span class="identifier">TN</span></tt>
</dd>
</dl>
</div>
<a name="fusion.algorithms.concepts.polymorphic_function_object.refinement_of"></a><h5>
<a name="id545796"></a>
<a href="polymorphic_function_object.html#fusion.algorithms.concepts.polymorphic_function_object.refinement_of">Refinement
of</a>
</h5>
<p>
MPL Metafunction Class
</p>
<a name="fusion.algorithms.concepts.polymorphic_function_object.expression_requirements"></a><h5>
<a name="id545829"></a>
<a href="polymorphic_function_object.html#fusion.algorithms.concepts.polymorphic_function_object.expression_requirements">Expression
requirements</a>
</h5>
<div class="informaltable">
<h4>
<a name="id545852"></a>
</h4>
<table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Return Type</th>
<th>Runtime
Complexity</th>
</tr></thead>
<tbody><tr>
<td><tt class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">t1</span><span class="special">,</span><EFBFBD><span class="special">...</span><span class="identifier">tN</span><span class="special">)</span></tt></td>
<td><tt class="computeroutput"><span class="identifier">F</span><span class="special">::</span><span class="identifier">result</span><span class="special">&lt;</span><span class="identifier">T1</span><span class="special">,</span><EFBFBD><span class="special">...</span><span class="identifier">TN</span><span class="special">&gt;::</span><span class="identifier">type</span></tt></td>
<td>Unspecified</td>
</tr></tbody>
</table>
</div>
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<td align="right"><small>Copyright <20> 2001-2005 Joel de Guzman, Dan Marsden</small></td>
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