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fusion/doc/html/fusion/functional/concepts/def_callable.html
Tobias Schwinger 9df373af5f revises function object concepts and functional module documenation to reflect 
boost::result_of-based result computation


[SVN r38209]
2007-07-13 19:25:34 +00:00

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<html>
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<title> Deferred
Callable Object</title>
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<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.concepts.def_callable"></a><a href="def_callable.html" title=" Deferred
Callable Object"> Deferred
Callable Object</a></h4></div></div></div>
<a name="fusion.functional.concepts.def_callable.description"></a><h5>
<a name="id1241924"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.description">Description</a>
</h5>
<p>
<a href="callable.html" title=" Callable Object">Callable Object</a>
types that work with <a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top">Boost.ResultOf</a>
to determine the result of a call.
</p>
<a name="fusion.functional.concepts.def_callable.refinement_of"></a><h5>
<a name="id1241966"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.refinement_of">Refinement
of</a>
</h5>
<div class="itemizedlist"><ul type="disc"><li><a href="callable.html" title=" Callable Object">Callable Object</a></li></ul></div>
<div class="sidebar"><p>
note Once C++ supports the <code class="literal">decltype</code> keyword, all models
of <a href="callable.html" title=" Callable Object">Callable Object</a>
will also be models of <a href="def_callable.html" title=" Deferred
Callable Object">Deferred
Callable Object</a>, because function objects won't need client-side
support for <code class="computeroutput"><span class="identifier">result_of</span></code>.
</p></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><code class="computeroutput"><span class="identifier">F</span></code></span></dt>
<dd>
A possibly const qualified Deferred Callable Object type
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code></span></dt>
<dd>
Argument types
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">a1</span>
<span class="special">...</span><span class="identifier">aN</span></code></span></dt>
<dd>
Objects or references to objects with types <code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code>
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span></code></span></dt>
<dd>
<code class="computeroutput"><span class="identifier">T</span></code>i is <code class="computeroutput"><span class="identifier">A</span></code>i
<code class="computeroutput"><span class="special">&amp;</span></code> if <code class="computeroutput"><span class="identifier">a</span></code>i
is an LValue, same as <code class="computeroutput"><span class="identifier">A</span></code>i,
otherwise
</dd>
</dl>
</div>
<a name="fusion.functional.concepts.def_callable.expression_requirements"></a><h5>
<a name="id1242224"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.expression_requirements">Expression
requirements</a>
</h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Type
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<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">&lt;</span> <span class="identifier">F</span><span class="special">(</span><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span></code>
</p>
</td>
<td>
<p>
Result of a call with <code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code>-typed
arguments
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.concepts.def_callable.models"></a><h5>
<a name="id1242387"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.models">Models</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li>
<a href="poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> types
</li>
<li>
member (function or data) pointer types
</li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><small>Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger</small></td>
</tr></table>
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