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<title> Polymorphic Function
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<div class="titlepage"><div><div><h4 class="title">
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<a name="fusion.algorithms.concepts.poly"></a><a href="poly.html" title=" Polymorphic Function
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Object"> Polymorphic Function
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Object</a></h4></div></div></div>
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<a name="fusion.algorithms.concepts.poly.description"></a><h5>
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<a name="id1080544"></a>
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<a href="poly.html#fusion.algorithms.concepts.poly.description">Description</a>
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</h5>
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<p>
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A type of function object with a nested metafunction <code class="computeroutput"><span class="identifier">result</span></code>.
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<code class="computeroutput"><span class="identifier">result</span></code> returns the result
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type of calling the function object, given the argument types.
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</p>
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<div class="variablelist">
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<p class="title"><b>Notation</b></p>
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<dl>
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<dt><span class="term"><code class="computeroutput"><span class="identifier">F</span></code></span></dt>
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<dd>
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A Polymorphic Function Object type
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</dd>
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<dt><span class="term"><code class="computeroutput"><span class="identifier">f</span></code></span></dt>
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<dd>
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A Polymorphic Function Object
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</dd>
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<dt><span class="term"><code class="computeroutput"><span class="identifier">T1</span>
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<span class="special">...</span><span class="identifier">TN</span></code></span></dt>
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<dd>
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Arbitrary types
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</dd>
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<dt><span class="term"><code class="computeroutput"><span class="identifier">t1</span>
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<span class="special">...</span><span class="identifier">tN</span></code></span></dt>
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<dd>
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Objects with types <code class="computeroutput"><span class="identifier">T1</span> <span class="special">...</span><span class="identifier">TN</span></code>
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</dd>
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</dl>
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</div>
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<a name="fusion.algorithms.concepts.poly.refinement_of"></a><h5>
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<a name="id1080698"></a>
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<a href="poly.html#fusion.algorithms.concepts.poly.refinement_of">Refinement
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of</a>
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</h5>
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<p>
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MPL Metafunction Class
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</p>
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<a name="fusion.algorithms.concepts.poly.expression_requirements"></a><h5>
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<a name="id1080725"></a>
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<a href="poly.html#fusion.algorithms.concepts.poly.expression_requirements">Expression
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requirements</a>
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</h5>
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<div class="informaltable"><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>Expression</th>
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<th>Return Type</th>
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<th>Runtime
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Complexity</th>
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</tr></thead>
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<tbody><tr>
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<td><code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">t1</span><span class="special">,</span> <span class="special">...</span><span class="identifier">tN</span><span class="special">)</span></code></td>
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<td><code class="computeroutput"><span class="identifier">F</span><span class="special">::</span><span class="identifier">result</span><span class="special"><</span><span class="identifier">T1</span><span class="special">,</span> <span class="special">...</span><span class="identifier">TN</span><span class="special">>::</span><span class="identifier">type</span></code></td>
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<td>Unspecified</td>
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</tr></tbody>
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</table></div>
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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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