<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>libsigc++: sigc::slot0< T_return > Class Template Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.6.1 -->
<div class="navigation" id="top">
<div class="tabs">
<ul>
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
<li class="current"><a href="annotated.html"><span>Classes</span></a></li>
</ul>
</div>
<div class="tabs">
<ul>
<li><a href="annotated.html"><span>Class List</span></a></li>
<li><a href="classes.html"><span>Class Index</span></a></li>
<li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li>
<li><a href="functions.html"><span>Class Members</span></a></li>
</ul>
</div>
<div class="navpath"><a class="el" href="namespacesigc.html">sigc</a>::<a class="el" href="classsigc_1_1slot0.html">slot0</a>
</div>
</div>
<div class="contents">
<h1>sigc::slot0< T_return > Class Template Reference<br/>
<small>
[<a class="el" href="group__slot.html">Slots</a>]</small>
</h1><!-- doxytag: class="sigc::slot0" --><!-- doxytag: inherits="sigc::slot_base" -->
<p>Converts an arbitrary functor to a unified type which is opaque. <a href="#_details">More...</a></p>
<p><code>#include <sigc++/functors/slot.h></code></p>
<div class="dynheader">
Inheritance diagram for sigc::slot0< T_return >:</div>
<div class="dynsection">
<div class="center"><img src="classsigc_1_1slot0__inherit__graph.png" border="0" usemap="#sigc_1_1slot0_3_01T__return_01_4_inherit__map" alt="Inheritance graph"/></div>
<map name="sigc_1_1slot0_3_01T__return_01_4_inherit__map" id="sigc_1_1slot0_3_01T__return_01_4_inherit__map">
<area shape="rect" href="classsigc_1_1slot_3_01T__return_00_01nil_00_01nil_00_01nil_00_01nil_00_01nil_00_01nil_00_01nil_01_4.html" title="Convenience wrapper for the numbered sigc::slot0 template." alt="" coords="5,239,320,265"/><area shape="rect" href="classsigc_1_1slot__base.html" title="Base type for slots." alt="" coords="105,84,220,111"/><area shape="rect" href="structsigc_1_1functor__base.html" title="A hint to the compiler." alt="" coords="95,7,231,33"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classsigc_1_1slot0-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aca0c967b605e09d5a87015d95e93d4f7"></a><!-- doxytag: member="sigc::slot0::result_type" ref="aca0c967b605e09d5a87015d95e93d4f7" args="" -->
typedef T_return </td><td class="memItemRight" valign="bottom"><b>result_type</b></td></tr>
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">T_return </td><td class="memItemRight" valign="bottom"><a class="el" href="classsigc_1_1slot0.html#a217f897aa20f2a1a9fffcb6500598600">operator()</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Invoke the contained functor unless <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> is in blocking state. <a href="#a217f897aa20f2a1a9fffcb6500598600"></a><br/></td></tr>
<tr><td class="memTemplParams" colspan="2">template<class T_functor > </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classsigc_1_1slot0.html#ab5e8957dd339cc35bfc58fa64718eb51">slot0</a> (const T_functor& _A_func)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructs a <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> from an arbitrary functor. <a href="#ab5e8957dd339cc35bfc58fa64718eb51"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="acce9a5d9a4f939e405383092ba717f72"></a><!-- doxytag: member="sigc::slot0::slot0" ref="acce9a5d9a4f939e405383092ba717f72" args="(const slot0 &src)" -->
 </td><td class="memItemRight" valign="bottom"><b>slot0</b> (const <a class="el" href="classsigc_1_1slot0.html">slot0</a>& src)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classsigc_1_1slot0.html">slot0</a>& </td><td class="memItemRight" valign="bottom"><a class="el" href="classsigc_1_1slot0.html#a49bba0540dcc76fb19e49d19a1acd563">operator=</a> (const <a class="el" href="classsigc_1_1slot0.html">slot0</a>& src)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Overrides this <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> making a copy from another <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a>. <a href="#a49bba0540dcc76fb19e49d19a1acd563"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<h3>template <class T_return><br/>
class sigc::slot0< T_return ></h3>
<p>Converts an arbitrary functor to a unified type which is opaque. </p>
<p><a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">sigc::slot</a> itself is a functor or to be more precise a closure. It contains a single, arbitrary functor (or closure) that is executed in <a class="el" href="classsigc_1_1slot0.html#a217f897aa20f2a1a9fffcb6500598600" title="Invoke the contained functor unless slot is in blocking state.">operator()()</a>.</p>
<p>The template arguments determine the function signature of <a class="el" href="classsigc_1_1slot0.html#a217f897aa20f2a1a9fffcb6500598600" title="Invoke the contained functor unless slot is in blocking state.">operator()()</a>:</p>
<ul>
<li><em>T_return</em> The return type of <a class="el" href="classsigc_1_1slot0.html#a217f897aa20f2a1a9fffcb6500598600" title="Invoke the contained functor unless slot is in blocking state.">operator()()</a>.</li>
</ul>
<p>To use simply assign the <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> to the desired functor. If the functor is not compatible with the parameter list defined with the template arguments compiler errors are triggered. When called the <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> will invoke the functor with minimal copies. <a class="el" href="classsigc_1_1slot__base.html#a69042c2e2b0e5449fbf8203e862192a7" title="Sets the blocking state.">block()</a> and <a class="el" href="classsigc_1_1slot__base.html#ad93eaf25fae13186a1af8f699c6004a1" title="Unsets the blocking state.">unblock()</a> can be used to block the functor's invocation from <a class="el" href="classsigc_1_1slot0.html#a217f897aa20f2a1a9fffcb6500598600" title="Invoke the contained functor unless slot is in blocking state.">operator()()</a> temporarily.</p>
<p>You should use the more convenient unnumbered <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">sigc::slot</a> template. </p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="ab5e8957dd339cc35bfc58fa64718eb51"></a><!-- doxytag: member="sigc::slot0::slot0" ref="ab5e8957dd339cc35bfc58fa64718eb51" args="(const T_functor &_A_func)" -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template <class T_return > </div>
<div class="memtemplate">
template <class T_functor > </div>
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classsigc_1_1slot0.html">sigc::slot0</a>< T_return >::<a class="el" href="classsigc_1_1slot0.html">slot0</a> </td>
<td>(</td>
<td class="paramtype">const T_functor & </td>
<td class="paramname"> <em>_A_func</em></td>
<td> ) </td>
<td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Constructs a <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> from an arbitrary functor. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>_A_func</em> </td><td>The desirer functor the new <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> should be assigned to. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a217f897aa20f2a1a9fffcb6500598600"></a><!-- doxytag: member="sigc::slot0::operator()" ref="a217f897aa20f2a1a9fffcb6500598600" args="() const " -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template <class T_return > </div>
<table class="memname">
<tr>
<td class="memname">T_return <a class="el" href="classsigc_1_1slot0.html">sigc::slot0</a>< T_return >::operator() </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Invoke the contained functor unless <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> is in blocking state. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>The return value of the functor invocation. </dd></dl>
</div>
</div>
<a class="anchor" id="a49bba0540dcc76fb19e49d19a1acd563"></a><!-- doxytag: member="sigc::slot0::operator=" ref="a49bba0540dcc76fb19e49d19a1acd563" args="(const slot0 &src)" -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template <class T_return > </div>
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classsigc_1_1slot0.html">slot0</a>& <a class="el" href="classsigc_1_1slot0.html">sigc::slot0</a>< T_return >::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classsigc_1_1slot0.html">slot0</a>< T_return >& </td>
<td class="paramname"> <em>src</em></td>
<td> ) </td>
<td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Overrides this <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> making a copy from another <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a>. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>src</em> </td><td>The <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">slot</a> from which to make a copy. </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd><code>this</code>. </dd></dl>
<p>Reimplemented from <a class="el" href="classsigc_1_1slot__base.html#a19522528264f1646f8ed982b0042ffad">sigc::slot_base</a>.</p>
</div>
</div>
</div>
<hr size="1"/><address style="text-align: right;"><small>Generated on Tue May 4 21:44:47 2010 for libsigc++ by 
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.1 </small></address>
</body>
</html>
distrib
>
Mandriva
>
2010.1
>
x86_64
>
media
>
main-release
>
by-pkgid
>
bd29e346140bd3fbcbf1674e576e565a
>
files
>
297
