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Callable Object</title>
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2007-07-13 19:25:34 +00:00
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Object">
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2007-02-15 23:11:24 +00:00
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2007-07-13 19:25:34 +00:00
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<a accesskey="p" href="reg_callable.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.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="poly.html"><img src="../../../images/next.png" alt="Next"></a>
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2007-02-15 23:11:24 +00:00
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</div>
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<div class="section" lang="en">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="fusion.functional.concepts.def_callable"></a><a href="def_callable.html" title=" Deferred
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Callable Object"> Deferred
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Callable Object</a></h4></div></div></div>
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<a name="fusion.functional.concepts.def_callable.description"></a><h5>
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<a name="id1241924"></a>
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<a href="def_callable.html#fusion.functional.concepts.def_callable.description">Description</a>
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</h5>
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<p>
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<a href="callable.html" title=" Callable Object">Callable Object</a>
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types that work with <a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top">Boost.ResultOf</a>
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to determine the result of a call.
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</p>
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<a name="fusion.functional.concepts.def_callable.refinement_of"></a><h5>
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<a name="id1241966"></a>
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<a href="def_callable.html#fusion.functional.concepts.def_callable.refinement_of">Refinement
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of</a>
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</h5>
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<div class="itemizedlist"><ul type="disc"><li><a href="callable.html" title=" Callable Object">Callable Object</a></li></ul></div>
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<div class="sidebar"><p>
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note Once C++ supports the <code class="literal">decltype</code> keyword, all models
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of <a href="callable.html" title=" Callable Object">Callable Object</a>
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will also be models of <a href="def_callable.html" title=" Deferred
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Callable Object">Deferred
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Callable Object</a>, because function objects won't need client-side
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support for <code class="computeroutput"><span class="identifier">result_of</span></code>.
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</p></div>
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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 possibly const qualified Deferred Callable Object type
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</dd>
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<dt><span class="term"><code class="computeroutput"><span class="identifier">A1</span>
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<span class="special">...</span><span class="identifier">AN</span></code></span></dt>
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<dd>
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Argument types
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</dd>
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<dt><span class="term"><code class="computeroutput"><span class="identifier">a1</span>
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<span class="special">...</span><span class="identifier">aN</span></code></span></dt>
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<dd>
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Objects or references to objects with types <code class="computeroutput"><span class="identifier">A1</span>
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<span class="special">...</span><span class="identifier">AN</span></code>
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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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<code class="computeroutput"><span class="identifier">T</span></code>i is <code class="computeroutput"><span class="identifier">A</span></code>i
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<code class="computeroutput"><span class="special">&</span></code> if <code class="computeroutput"><span class="identifier">a</span></code>i
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is an LValue, same as <code class="computeroutput"><span class="identifier">A</span></code>i,
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otherwise
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</dd>
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</dl>
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</div>
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<a name="fusion.functional.concepts.def_callable.expression_requirements"></a><h5>
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<a name="id1242224"></a>
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<a href="def_callable.html#fusion.functional.concepts.def_callable.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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</colgroup>
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<thead><tr>
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<th>
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<p>
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Expression
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</p>
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</th>
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<th>
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<p>
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Type
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</p>
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</th>
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</tr></thead>
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<tbody><tr>
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<td>
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<p>
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<a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></code></a><code class="computeroutput"><span class="special"><</span> <span class="identifier">F</span><span class="special">(</span><span class="identifier">T1</span>
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<span class="special">...</span><span class="identifier">TN</span><span class="special">)</span> <span class="special">>::</span><span class="identifier">type</span></code>
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</p>
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</td>
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<td>
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<p>
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Result of a call with <code class="computeroutput"><span class="identifier">A1</span>
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<span class="special">...</span><span class="identifier">AN</span></code>-typed
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arguments
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</p>
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</td>
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</tr></tbody>
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</table></div>
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<a name="fusion.functional.concepts.def_callable.models"></a><h5>
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<a name="id1242387"></a>
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<a href="def_callable.html#fusion.functional.concepts.def_callable.models">Models</a>
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</h5>
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<div class="itemizedlist"><ul type="disc">
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<li>
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<a href="poly.html" title=" Polymorphic Function
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Object">Polymorphic Function
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Object</a> types
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</li>
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<li>
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member (function or data) pointer types
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</li>
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</ul></div>
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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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2007-02-25 22:02:27 +00:00
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<td align="right"><small>Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
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Schwinger</small></td>
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</tr></table>
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<hr>
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<div class="spirit-nav">
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2007-07-13 19:25:34 +00:00
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2007-02-15 23:11:24 +00:00
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