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<title>Class postconstructor_invoker</title>
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<div class="refentry" title="Class postconstructor_invoker">
<a name="boost.signals2.postconstructor_invoker"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle">Class postconstructor_invoker</span></h2>
<p>boost::signals2::postconstructor_invoker — Pass arguments to and run postconstructors for objects created with <a class="link" href="deconstruct.html" title="Function deconstruct">deconstruct()</a>.</p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="emphasis"><em>// In header: <<a class="link" href="../../signals2/reference.html#header.boost.signals2.deconstruct_hpp" title="Header <boost/signals2/deconstruct.hpp>">boost/signals2/deconstruct.hpp</a>>
</em></span>
<span class="bold"><strong>class</strong></span> <a class="link" href="postconstructor_invoker.html" title="Class postconstructor_invoker">postconstructor_invoker</a> {
<span class="bold"><strong>public</strong></span>:
<span class="emphasis"><em>// <a class="link" href="postconstructor_invoker.html#id1117569-bb">public methods</a></em></span>
<a class="link" href="postconstructor_invoker.html#id1137470-bb"><span class="bold"><strong>operator</strong></span> <span class="bold"><strong>const</strong></span> shared_ptr<T> &</a>();
<span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a class="link" href="postconstructor_invoker.html#id621526-bb">postconstruct</a>();
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> A1> <span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a class="link" href="postconstructor_invoker.html#id1120333-bb">postconstruct</a>(A1);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> A1, <span class="bold"><strong>typename</strong></span> A2>
<span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a class="link" href="postconstructor_invoker.html#id694894-bb">postconstruct</a>(A1, A1);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> A1, <span class="bold"><strong>typename</strong></span> A2, ..., <span class="bold"><strong>typename</strong></span> AN>
<span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a class="link" href="postconstructor_invoker.html#id1136325-bb">postconstruct</a>(A1, A1, ..., A1);
};</pre></div>
<div class="refsect1" title="Description">
<a name="id1702801"></a><h2>Description</h2>
<p>
Objects of type <code class="computeroutput">postconstructor_invoker</code> are returned by calls to the
<a class="link" href="deconstruct.html" title="Function deconstruct">deconstruct()</a> factory function. These objects are intended
to either be immediately assigned to a shared_ptr (in which case the
class' conversion operator will perform the conversion by calling the
<a class="link" href="postconstructor_invoker.html#id621522-bb">postconstruct</a> with no arguments), or to be converted
to shared_ptr explicitly by the user calling one of
the <a class="link" href="postconstructor_invoker.html#id621522-bb">postconstruct</a> methods.
</p>
<div class="refsect2" title="postconstructor_invoker public methods">
<a name="id1702842"></a><h3>
<a name="id1117569-bb"></a><code class="computeroutput">postconstructor_invoker</code> public methods</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="id1137470-bb"></a><span class="bold"><strong>operator</strong></span> <span class="bold"><strong>const</strong></span> shared_ptr<T> &();</pre>
<p>
The conversion operator has the same effect as explicitly calling
the <code class="computeroutput"><a class="link" href="postconstructor_invoker.html#id621522-bb">postconstruct</a></code> method with no arguments.
</p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="id621522-bb"></a><span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a name="id621526-bb"></a>postconstruct();
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> A1> <span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a name="id1120333-bb"></a>postconstruct(A1 a1);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> A1, <span class="bold"><strong>typename</strong></span> A2>
<span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a name="id694894-bb"></a>postconstruct(A1 a1, A1 a2);
<span class="bold"><strong>template</strong></span><<span class="bold"><strong>typename</strong></span> A1, <span class="bold"><strong>typename</strong></span> A2, ..., <span class="bold"><strong>typename</strong></span> AN>
<span class="type"><span class="bold"><strong>const</strong></span> shared_ptr<T> &</span> <a name="id1136325-bb"></a>postconstruct(A1 a1, A1 a2, ..., A1 aN);</pre>
<p>
The <code class="computeroutput">postconstruct</code> methods make an unqualified call to
<code class="computeroutput">adl_postconstruct()</code> and then return the <code class="computeroutput">shared_ptr</code>
which was wrapped inside the <code class="computeroutput">postconstructor_invoker</code>
object by <code class="computeroutput"><a class="link" href="deconstruct.html" title="Function deconstruct">deconstruct()</a></code>.
The first two arguments passed to the
<code class="computeroutput">adl_postconstruct()</code> call are always the <code class="computeroutput">shared_ptr</code>
owning the object created by <code class="computeroutput"><a class="link" href="deconstruct.html" title="Function deconstruct">deconstruct()</a></code>,
followed by a ordinary pointer to the same object. As a convenience,
the ordinary pointer
will always be cast to point to a non-const type before being passed
to <code class="computeroutput">adl_postconstruct</code>. The remaining arguments passed to
<code class="computeroutput">adl_postconstruct</code> are whatever arguments the user may have
passed to the <code class="computeroutput">postconstruct</code>
method.
</p>
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<td align="right"><div class="copyright-footer">Copyright © 2001-2004 Douglas Gregor<br>Copyright © 2007-2009 Frank Mori Hess<p>Distributed under the Boost
Software License, Version 1.0. (See accompanying file
<code class="filename">LICENSE_1_0.txt</code> 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>
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