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doc/html/fusion/functional/invocation/functions/invoke.html
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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</div>
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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.functional.invocation.functions.invoke"></a><a href="invoke.html" title="invoke">invoke</a></h5></div></div></div>
|
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<a name="fusion.functional.invocation.functions.invoke.description"></a><h6>
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<a name="id654760"></a>
|
||||
<a href="invoke.html#fusion.functional.invocation.functions.invoke.description">Description</a>
|
||||
</h6>
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||||
<p>
|
||||
Calls a <a href="../../concepts/def_callable.html" title=" Deferred
|
||||
Callable Object">Deferred
|
||||
Callable Object</a> with the arguments from a <a href="../../../sequence.html" title="Sequence">Sequence</a>.
|
||||
</p>
|
||||
<p>
|
||||
The first template parameter can be specialized explicitly to avoid copying
|
||||
and/or to control the const qualification of a function object.
|
||||
</p>
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||||
<p>
|
||||
If the target function is a pointer to a class members, the corresponding
|
||||
object can be specified as a reference, pointer, or smart pointer. In
|
||||
case of the latter, a freestanding <tt class="literal">get_pointer</tt> function
|
||||
must be defined (Boost provides this function for <tt class="literal">std::auto_ptr</tt>
|
||||
and <a href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm" target="_top"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span></tt></a>).
|
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</p>
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||||
<a name="fusion.functional.invocation.functions.invoke.synopsis"></a><h6>
|
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<a name="id654863"></a>
|
||||
<a href="invoke.html#fusion.functional.invocation.functions.invoke.synopsis">Synopsis</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
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<span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span>
|
||||
<span class="keyword">class</span> <span class="identifier">Sequence</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/invoke.html" title="invoke"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke</span></tt></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">type</span>
|
||||
<span class="identifier">invoke</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span>
|
||||
|
||||
<span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span>
|
||||
<span class="keyword">class</span> <span class="identifier">Sequence</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/invoke.html" title="invoke"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke</span></tt></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">type</span>
|
||||
<span class="identifier">invoke</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span>
|
||||
</pre>
|
||||
<a name="fusion.functional.invocation.functions.invoke.parameters"></a><h6>
|
||||
<a name="id655240"></a>
|
||||
<a href="invoke.html#fusion.functional.invocation.functions.invoke.parameters">Parameters</a>
|
||||
</h6>
|
||||
<div class="informaltable"><table class="table">
|
||||
<colgroup>
|
||||
<col>
|
||||
<col>
|
||||
<col>
|
||||
</colgroup>
|
||||
<thead><tr>
|
||||
<th>
|
||||
<p>
|
||||
Parameter
|
||||
</p>
|
||||
</th>
|
||||
<th>
|
||||
<p>
|
||||
Requirement
|
||||
</p>
|
||||
</th>
|
||||
<th>
|
||||
<p>
|
||||
Description
|
||||
</p>
|
||||
</th>
|
||||
</tr></thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
A <a href="../../concepts/def_callable.html" title=" Deferred
|
||||
Callable Object">Deferred
|
||||
Callable Object</a>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
The function to call.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
A <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
|
||||
Sequence">Forward
|
||||
Sequence</a>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
The arguments.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table></div>
|
||||
<a name="fusion.functional.invocation.functions.invoke.expression_semantics"></a><h6>
|
||||
<a name="id655402"></a>
|
||||
<a href="invoke.html#fusion.functional.invocation.functions.invoke.expression_semantics">Expression
|
||||
Semantics</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="identifier">invoke</span><span class="special">(</span><span class="identifier">f</span><span class="special">,</span><span class="identifier">s</span><span class="special">);</span>
|
||||
</pre>
|
||||
<p>
|
||||
<span class="bold"><b>Return type</b></span>: Return type of <tt class="computeroutput"><span class="identifier">f</span></tt> when invoked with the elements in
|
||||
<tt class="computeroutput"><span class="identifier">s</span></tt> as its arguments.
|
||||
</p>
|
||||
<p>
|
||||
<span class="bold"><b>Semantics</b></span>: Invokes <tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
with the elements in <tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
as arguments and returns the result of the call expression.
|
||||
</p>
|
||||
<p>
|
||||
/functional/invocation/invoke.hpp>
|
||||
</p>
|
||||
<a name="fusion.functional.invocation.functions.invoke.example"></a><h6>
|
||||
<a name="id655545"></a>
|
||||
<a href="invoke.html#fusion.functional.invocation.functions.invoke.example">Example</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<a href="http://www.sgi.com/tech/stl/plus.html" target="_top"><tt class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">plus</span></tt></a><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">add</span><span class="special">;</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">invoke</span><span class="special">(</span><span class="identifier">add</span><span class="special">,</span><a href="../../../container/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">1</span><span class="special">))</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span>
|
||||
</pre>
|
||||
<a name="fusion.functional.invocation.functions.invoke.see_also"></a><h6>
|
||||
<a name="id655713"></a>
|
||||
<a href="invoke.html#fusion.functional.invocation.functions.invoke.see_also">See
|
||||
also</a>
|
||||
</h6>
|
||||
<div class="itemizedlist"><ul type="disc">
|
||||
<li><a href="invoke_proc.html" title="
|
||||
invoke_procedure"><tt class="computeroutput"><span class="identifier">invoke_procedure</span></tt></a></li>
|
||||
<li><a href="invoke_fobj.html" title="
|
||||
invoke_function_object"><tt class="computeroutput"><span class="identifier">invoke_function_object</span></tt></a></li>
|
||||
<li><a href="../metafunctions/invoke.html" title="invoke"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke</span></tt></a></li>
|
||||
<li><a href="../../adapters/fused.html" title="fused"><tt class="computeroutput"><span class="identifier">fused</span></tt></a></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"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
|
||||
Schwinger<p>
|
||||
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||||
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
||||
<div class="spirit-nav">
|
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<a accesskey="p" href="../functions.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="invoke_proc.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
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</div>
|
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</body>
|
||||
</html>
|
||||
209
doc/html/fusion/functional/invocation/functions/invoke_fobj.html
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209
doc/html/fusion/functional/invocation/functions/invoke_fobj.html
Normal file
@ -0,0 +1,209 @@
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<html>
|
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<head>
|
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>
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invoke_function_object</title>
|
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<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
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<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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<link rel="up" href="../functions.html" title="Functions">
|
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<link rel="prev" href="invoke_proc.html" title="
|
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invoke_procedure">
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<link rel="next" href="../metafunctions.html" title="Metafunctions">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr>
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<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td>
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<td align="center"><a href="../../../../../../../../index.htm">Home</a></td>
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<td align="center"><a href="../../../../../../../libraries.htm">Libraries</a></td>
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<td align="center"><a href="../../../../../../../../people/people.htm">People</a></td>
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<td align="center"><a href="../../../../../../../../more/faq.htm">FAQ</a></td>
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<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td>
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</tr></table>
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<hr>
|
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<div class="spirit-nav">
|
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<a accesskey="p" href="invoke_proc.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="../metafunctions.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
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</div>
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<div class="section" lang="en">
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||||
<div class="titlepage"><div><div><h5 class="title">
|
||||
<a name="fusion.functional.invocation.functions.invoke_fobj"></a><a href="invoke_fobj.html" title="
|
||||
invoke_function_object">
|
||||
invoke_function_object</a></h5></div></div></div>
|
||||
<a name="fusion.functional.invocation.functions.invoke_fobj.description"></a><h6>
|
||||
<a name="id657033"></a>
|
||||
<a href="invoke_fobj.html#fusion.functional.invocation.functions.invoke_fobj.description">Description</a>
|
||||
</h6>
|
||||
<p>
|
||||
Calls a <a href="../../concepts/poly.html" title=" Polymorphic Function
|
||||
Object">Polymorphic Function
|
||||
Object</a> with the arguments from a <a href="../../../sequence.html" title="Sequence">Sequence</a>.
|
||||
</p>
|
||||
<p>
|
||||
The first template parameter can be specialized explicitly to avoid copying
|
||||
and/or to control the const qualification of a function object.
|
||||
</p>
|
||||
<a name="fusion.functional.invocation.functions.invoke_fobj.synopsis"></a><h6>
|
||||
<a name="id657088"></a>
|
||||
<a href="invoke_fobj.html#fusion.functional.invocation.functions.invoke_fobj.synopsis">Synopsis</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span>
|
||||
<span class="keyword">class</span> <span class="identifier">Sequence</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/invoke_fobj.html" title="
|
||||
invoke_function_object"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_function_object</span></tt></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">type</span>
|
||||
<span class="identifier">invoke_function_object</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span>
|
||||
|
||||
<span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span>
|
||||
<span class="keyword">class</span> <span class="identifier">Sequence</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/invoke_fobj.html" title="
|
||||
invoke_function_object"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_function_object</span></tt></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">type</span>
|
||||
<span class="identifier">invoke_function_object</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span>
|
||||
</pre>
|
||||
<a name="fusion.functional.invocation.functions.invoke_fobj.parameters"></a><h6>
|
||||
<a name="id657468"></a>
|
||||
<a href="invoke_fobj.html#fusion.functional.invocation.functions.invoke_fobj.parameters">Parameters</a>
|
||||
</h6>
|
||||
<div class="informaltable"><table class="table">
|
||||
<colgroup>
|
||||
<col>
|
||||
<col>
|
||||
<col>
|
||||
</colgroup>
|
||||
<thead><tr>
|
||||
<th>
|
||||
<p>
|
||||
Parameter
|
||||
</p>
|
||||
</th>
|
||||
<th>
|
||||
<p>
|
||||
Requirement
|
||||
</p>
|
||||
</th>
|
||||
<th>
|
||||
<p>
|
||||
Description
|
||||
</p>
|
||||
</th>
|
||||
</tr></thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Model of <a href="../../concepts/poly.html" title=" Polymorphic Function
|
||||
Object">Polymorphic
|
||||
Function Object</a>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
The function object to call.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
|
||||
Sequence">Forward
|
||||
Sequence</a>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
The arguments.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table></div>
|
||||
<a name="fusion.functional.invocation.functions.invoke_fobj.expression_semantics"></a><h6>
|
||||
<a name="id657629"></a>
|
||||
<a href="invoke_fobj.html#fusion.functional.invocation.functions.invoke_fobj.expression_semantics">Expression
|
||||
Semantics</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="identifier">invoke_function_object</span><span class="special">(</span><span class="identifier">f</span><span class="special">,</span><span class="identifier">s</span><span class="special">);</span>
|
||||
</pre>
|
||||
<p>
|
||||
<span class="bold"><b>Return type</b></span>: Return type of <tt class="computeroutput"><span class="identifier">f</span></tt> when invoked with the elements in
|
||||
<tt class="computeroutput"><span class="identifier">s</span></tt> as its arguments.
|
||||
</p>
|
||||
<p>
|
||||
<span class="bold"><b>Semantics</b></span>: Invokes <tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
with the elements in <tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
as arguments and returns the result of the call expression.
|
||||
</p>
|
||||
<p>
|
||||
/functional/invocation/invoke_function_object.hpp>
|
||||
</p>
|
||||
<a name="fusion.functional.invocation.functions.invoke_fobj.example"></a><h6>
|
||||
<a name="id657772"></a>
|
||||
<a href="invoke_fobj.html#fusion.functional.invocation.functions.invoke_fobj.example">Example</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">struct</span> <span class="identifier">sub</span>
|
||||
<span class="special">{</span>
|
||||
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Sig</span><span class="special">></span>
|
||||
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special">;</span>
|
||||
|
||||
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Self</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
|
||||
<span class="keyword">struct</span> <span class="identifier">result</span><span class="special"><</span> <span class="identifier">Self</span><span class="special">(</span><span class="identifier">T</span><span class="special">,</span><span class="identifier">T</span><span class="special">)</span> <span class="special">></span>
|
||||
<span class="special">{</span> <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">remove_reference</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span>
|
||||
|
||||
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
|
||||
<span class="identifier">T</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span> <span class="identifier">lhs</span><span class="special">,</span> <span class="identifier">T</span> <span class="identifier">rhs</span><span class="special">)</span> <span class="keyword">const</span>
|
||||
<span class="special">{</span>
|
||||
<span class="keyword">return</span> <span class="identifier">lhs</span> <span class="special">-</span> <span class="identifier">rhs</span><span class="special">;</span>
|
||||
<span class="special">}</span>
|
||||
<span class="special">};</span>
|
||||
|
||||
<span class="keyword">void</span> <span class="identifier">try_it</span><span class="special">()</span>
|
||||
<span class="special">{</span>
|
||||
<span class="identifier">sub</span> <span class="identifier">f</span><span class="special">;</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">f</span><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="identifier">invoke_function_object</span><span class="special">(</span><span class="identifier">f</span><span class="special">,</span><a href="../../../container/generation/functions/make_vector.html" title="make_vector"><tt class="computeroutput"><span class="identifier">make_vector</span></tt></a><span class="special">(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)));</span>
|
||||
<span class="special">}</span>
|
||||
</pre>
|
||||
<a name="fusion.functional.invocation.functions.invoke_fobj.see_also"></a><h6>
|
||||
<a name="id658322"></a>
|
||||
<a href="invoke_fobj.html#fusion.functional.invocation.functions.invoke_fobj.see_also">See
|
||||
also</a>
|
||||
</h6>
|
||||
<div class="itemizedlist"><ul type="disc">
|
||||
<li><a href="invoke.html" title="invoke"><tt class="computeroutput"><span class="identifier">invoke</span></tt></a></li>
|
||||
<li><a href="invoke_proc.html" title="
|
||||
invoke_procedure"><tt class="computeroutput"><span class="identifier">invoke_procedure</span></tt></a></li>
|
||||
<li><a href="../metafunctions/invoke_fobj.html" title="
|
||||
invoke_function_object"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_function_object</span></tt></a></li>
|
||||
<li><a href="../../adapters/fused_function_object.html" title="fused_function_object"><tt class="computeroutput"><span class="identifier">fused_function_object</span></tt></a></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"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
|
||||
Schwinger<p>
|
||||
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||||
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
||||
<div class="spirit-nav">
|
||||
<a accesskey="p" href="invoke_proc.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="../metafunctions.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
201
doc/html/fusion/functional/invocation/functions/invoke_proc.html
Normal file
201
doc/html/fusion/functional/invocation/functions/invoke_proc.html
Normal file
@ -0,0 +1,201 @@
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||||
<title>
|
||||
invoke_procedure</title>
|
||||
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
|
||||
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
|
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<link rel="start" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
|
||||
<link rel="up" href="../functions.html" title="Functions">
|
||||
<link rel="prev" href="invoke.html" title="invoke">
|
||||
<link rel="next" href="invoke_fobj.html" title="
|
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invoke_function_object">
|
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</head>
|
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
|
||||
<table cellpadding="2" width="100%"><tr>
|
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<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td>
|
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<td align="center"><a href="../../../../../../../../index.htm">Home</a></td>
|
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<td align="center"><a href="../../../../../../../libraries.htm">Libraries</a></td>
|
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<td align="center"><a href="../../../../../../../../people/people.htm">People</a></td>
|
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<td align="center"><a href="../../../../../../../../more/faq.htm">FAQ</a></td>
|
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<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td>
|
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</tr></table>
|
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<hr>
|
||||
<div class="spirit-nav">
|
||||
<a accesskey="p" href="invoke.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="invoke_fobj.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
|
||||
</div>
|
||||
<div class="section" lang="en">
|
||||
<div class="titlepage"><div><div><h5 class="title">
|
||||
<a name="fusion.functional.invocation.functions.invoke_proc"></a><a href="invoke_proc.html" title="
|
||||
invoke_procedure">
|
||||
invoke_procedure</a></h5></div></div></div>
|
||||
<a name="fusion.functional.invocation.functions.invoke_proc.description"></a><h6>
|
||||
<a name="id655866"></a>
|
||||
<a href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.description">Description</a>
|
||||
</h6>
|
||||
<p>
|
||||
Calls a <a href="../../concepts/callable.html" title=" Callable Object">Callable
|
||||
Object</a> with the arguments from a <a href="../../../sequence.html" title="Sequence">Sequence</a>.
|
||||
The result of the call is ignored.
|
||||
</p>
|
||||
<p>
|
||||
The first template parameter can be specialized explicitly to avoid copying
|
||||
and/or to control the const qualification of a function object.
|
||||
</p>
|
||||
<p>
|
||||
For pointers to class members corresponding object can be specified as
|
||||
a reference, pointer, or smart pointer. In case of the latter, a freestanding
|
||||
<tt class="literal">get_pointer</tt> function must be defined (Boost provides
|
||||
this function for <tt class="literal">std::auto_ptr</tt> and <a href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm" target="_top"><tt class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">shared_ptr</span></tt></a>).
|
||||
</p>
|
||||
<p>
|
||||
The target function must not be a pointer to a member object (dereferencing
|
||||
such a pointer without returning anything does not make sense, so it
|
||||
isn't implemented).
|
||||
</p>
|
||||
<a name="fusion.functional.invocation.functions.invoke_proc.synopsis"></a><h6>
|
||||
<a name="id655976"></a>
|
||||
<a href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.synopsis">Synopsis</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span>
|
||||
<span class="keyword">class</span> <span class="identifier">Sequence</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/invoke_proc.html" title="
|
||||
invoke_procedure"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_procedure</span></tt></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span><span class="special">>::</span><span class="identifier">type</span>
|
||||
<span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span>
|
||||
|
||||
<span class="keyword">template</span><span class="special"><</span>
|
||||
<span class="keyword">typename</span> <span class="identifier">Function</span><span class="special">,</span>
|
||||
<span class="keyword">class</span> <span class="identifier">Sequence</span>
|
||||
<span class="special">></span>
|
||||
<span class="keyword">typename</span> <a href="../metafunctions/invoke_proc.html" title="
|
||||
invoke_procedure"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_procedure</span></tt></a><span class="special"><</span><span class="identifier">Function</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">type</span>
|
||||
<span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">Function</span> <span class="identifier">f</span><span class="special">,</span> <span class="identifier">Sequence</span> <span class="keyword">const</span> <span class="special">&</span> <span class="identifier">s</span><span class="special">);</span>
|
||||
</pre>
|
||||
<a name="fusion.functional.invocation.functions.invoke_proc.parameters"></a><h6>
|
||||
<a name="id656356"></a>
|
||||
<a href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.parameters">Parameters</a>
|
||||
</h6>
|
||||
<div class="informaltable"><table class="table">
|
||||
<colgroup>
|
||||
<col>
|
||||
<col>
|
||||
<col>
|
||||
</colgroup>
|
||||
<thead><tr>
|
||||
<th>
|
||||
<p>
|
||||
Parameter
|
||||
</p>
|
||||
</th>
|
||||
<th>
|
||||
<p>
|
||||
Requirement
|
||||
</p>
|
||||
</th>
|
||||
<th>
|
||||
<p>
|
||||
Description
|
||||
</p>
|
||||
</th>
|
||||
</tr></thead>
|
||||
<tbody>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Model of <a href="../../concepts/callable.html" title=" Callable Object">Callable
|
||||
Object</a>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
The function to call.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>
|
||||
<p>
|
||||
<tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
Model of <a href="../../../sequence/concepts/forward_sequence.html" title="Forward
|
||||
Sequence">Forward
|
||||
Sequence</a>
|
||||
</p>
|
||||
</td>
|
||||
<td>
|
||||
<p>
|
||||
The arguments.
|
||||
</p>
|
||||
</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table></div>
|
||||
<a name="fusion.functional.invocation.functions.invoke_proc.expression_semantics"></a><h6>
|
||||
<a name="id656515"></a>
|
||||
<a href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.expression_semantics">Expression
|
||||
Semantics</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">f</span><span class="special">,</span><span class="identifier">s</span><span class="special">);</span>
|
||||
</pre>
|
||||
<p>
|
||||
<span class="bold"><b>Return type</b></span>: <tt class="computeroutput"><span class="keyword">void</span></tt>
|
||||
</p>
|
||||
<p>
|
||||
<span class="bold"><b>Semantics</b></span>: Invokes <tt class="computeroutput"><span class="identifier">f</span></tt>
|
||||
with the elements in <tt class="computeroutput"><span class="identifier">s</span></tt>
|
||||
as arguments.
|
||||
</p>
|
||||
<p>
|
||||
/functional/invocation/invoke_procedure.hpp>
|
||||
</p>
|
||||
<a name="fusion.functional.invocation.functions.invoke_proc.example"></a><h6>
|
||||
<a name="id656643"></a>
|
||||
<a href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.example">Example</a>
|
||||
</h6>
|
||||
<pre class="programlisting">
|
||||
<a href="../../../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special"><</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">v</span><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">);</span>
|
||||
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">lambda</span><span class="special">;</span>
|
||||
<span class="identifier">invoke_procedure</span><span class="special">(</span><span class="identifier">_1</span> <span class="special">+=</span> <span class="identifier">_2</span><span class="special">,</span> <span class="identifier">v</span><span class="special">);</span>
|
||||
<span class="identifier">assert</span><span class="special">(</span><a href="../../../sequence/intrinsic/functions/front.html" title="front"><tt class="computeroutput"><span class="identifier">front</span></tt></a><span class="special">(</span><span class="identifier">v</span><span class="special">)</span> <span class="special">==</span> <span class="number">3</span><span class="special">);</span>
|
||||
</pre>
|
||||
<a name="fusion.functional.invocation.functions.invoke_proc.see_also"></a><h6>
|
||||
<a name="id656883"></a>
|
||||
<a href="invoke_proc.html#fusion.functional.invocation.functions.invoke_proc.see_also">See
|
||||
also</a>
|
||||
</h6>
|
||||
<div class="itemizedlist"><ul type="disc">
|
||||
<li><a href="invoke.html" title="invoke"><tt class="computeroutput"><span class="identifier">invoke</span></tt></a></li>
|
||||
<li><a href="invoke_fobj.html" title="
|
||||
invoke_function_object"><tt class="computeroutput"><span class="identifier">invoke_function_object</span></tt></a></li>
|
||||
<li><a href="../metafunctions/invoke_proc.html" title="
|
||||
invoke_procedure"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">invoke_procedure</span></tt></a></li>
|
||||
<li><a href="../../adapters/fused_procedure.html" title="fused_procedure"><tt class="computeroutput"><span class="identifier">fused_procedure</span></tt></a></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"><div class="copyright-footer">Copyright <20> 2001-2007 Joel de Guzman, Dan Marsden, Tobias
|
||||
Schwinger<p>
|
||||
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
||||
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
|
||||
</p>
|
||||
</div></td>
|
||||
</tr></table>
|
||||
<hr>
|
||||
<div class="spirit-nav">
|
||||
<a accesskey="p" href="invoke.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.html"><img src="../../../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="invoke_fobj.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user