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<title>libsigc++ 2.0: SigC::Slot1< T_return, T_arg1 > Class Template Reference</title>
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<h1>SigC::Slot1< T_return, T_arg1 > Class Template Reference<br>
<small>
[<a class="el" href="group__compat.html">Compatibility module</a>]</small>
</h1>Converts an arbitrary functor to a unified type which is opaque.
<a href="#_details">More...</a>
<p>
Inheritance diagram for SigC::Slot1< T_return, T_arg1 >:<p><center><img src="classSigC_1_1Slot1__inherit__graph.png" border="0" usemap="#SigC_1_1Slot1_3_01T__return_00_01T__arg1_01_4__inherit__map" alt="Inheritance graph"></center>
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<area href="classsigc_1_1slot__base.html" shape="rect" coords="105,83,214,107" alt="">
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<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classSigC_1_1Slot1-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef ::<a class="el" href="classsigc_1_1slot.html">sigc::slot</a>< T_return,<br>
T_arg1 > </td><td class="memItemRight" valign="bottom"><a class="el" href="classSigC_1_1Slot1.html#w0">parent_type</a></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSigC_1_1Slot1.html#a0">Slot1</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructs an empty slot. <a href="#a0"></a><br></td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T_functor> </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classSigC_1_1Slot1.html#a1">Slot1</a> (const T_functor& _A_func)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructs a slot from an arbitrary functor. <a href="#a1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSigC_1_1Slot1.html#a2">Slot1</a> (const <a class="el" href="classsigc_1_1slot.html">parent_type</a>& src)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructs a slot, copying an existing one. <a href="#a2"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classSigC_1_1Slot1.html">Slot1</a>& </td><td class="memItemRight" valign="bottom"><a class="el" href="classSigC_1_1Slot1.html#a3">operator=</a> (const <a class="el" href="classsigc_1_1slot.html">parent_type</a>& src)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Overrides this slot making a copy from another slot. <a href="#a3"></a><br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
<h3>template <class T_return, class T_arg1><br>
class SigC::Slot1< T_return, T_arg1 ></h3>
Converts an arbitrary functor to a unified type which is opaque.
<p>
<a class="el" href="classSigC_1_1Slot1.html">Slot1</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_1slot7.html#a0">operator()()</a>.<p>
The template arguments determine the function signature of <a class="el" href="classsigc_1_1slot7.html#a0">operator()()</a>:<ul>
<li><em>T_return</em> The return type of <a class="el" href="classsigc_1_1slot7.html#a0">operator()()</a>.</li><li><em>T_arg1</em> Argument type used in the definition of <a class="el" href="classsigc_1_1slot7.html#a0">operator()()</a>.</li></ul>
<p>
To use simply assign the slot 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 slot will invoke the functor with minimal copies. <a class="el" href="classsigc_1_1slot__base.html#a10">block()</a> and <a class="el" href="classsigc_1_1slot__base.html#a11">unblock()</a> can be used to block the functor's invocation from <a class="el" href="classsigc_1_1slot7.html#a0">operator()()</a> temporarily.<p>
<dl compact><dt><b>Example:</b></dt><dd><div class="fragment"><pre class="fragment"><span class="preprocessor"> #include <<a class="code" href="slot_8h.html">sigc++/slot.h</a>></span>
<span class="keywordtype">void</span> foo(<span class="keywordtype">int</span>) {}
<a class="code" href="classSigC_1_1Slot1.html">SigC::Slot1<void, long></a> s = <a class="code" href="group__compat.html#ga17">SigC::slot</a>(&foo);
s(19);
</pre></div></dd></dl>
<p>
<dl compact><dt><b><a class="el" href="deprecated.html#_deprecated000103">Deprecated:</a></b></dt><dd>Use the unnumbered template <a class="el" href="classsigc_1_1slot.html">sigc::slot</a> instead.</dd></dl>
<p>
<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="w0" doxytag="SigC::Slot1::parent_type"></a><p>
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template <class T_return, class T_arg1> </td>
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<td class="md" nowrap valign="top">typedef ::<a class="el" href="classsigc_1_1slot.html">sigc::slot</a><T_return, T_arg1> <a class="el" href="classSigC_1_1Slot1.html">SigC::Slot1</a><T_return, T_arg1>::<a class="el" href="classsigc_1_1slot.html">parent_type</a> </td>
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<p>
<p>
Reimplemented from <a class="el" href="classsigc_1_1slot.html#w0">sigc::slot<T_return, T_arg1></a>. </td>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0" doxytag="SigC::Slot1::Slot1"></a><p>
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template <class T_return, class T_arg1> </td>
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<td class="md" nowrap valign="top"><a class="el" href="classSigC_1_1Slot1.html">SigC::Slot1</a><T_return, T_arg1>::<a class="el" href="classSigC_1_1Slot1.html">Slot1</a> </td>
<td class="md" valign="top">(</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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<p>
Constructs an empty slot.
<p>
</td>
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<a class="anchor" name="a1" doxytag="SigC::Slot1::Slot1"></a><p>
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template <class T_return, class T_arg1> </td>
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template <class T_functor> </td>
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<td class="md" nowrap valign="top"><a class="el" href="classSigC_1_1Slot1.html">SigC::Slot1</a><T_return, T_arg1>::<a class="el" href="classSigC_1_1Slot1.html">Slot1</a> </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">const T_functor& </td>
<td class="mdname1" valign="top" nowrap> <em>_A_func</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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</td>
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<p>
Constructs a slot from an arbitrary functor.
<p>
<dl compact><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 desired functor the new slot should be assigned to. </td></tr>
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<a class="anchor" name="a2" doxytag="SigC::Slot1::Slot1"></a><p>
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template <class T_return, class T_arg1> </td>
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<td class="md" nowrap valign="top"><a class="el" href="classSigC_1_1Slot1.html">SigC::Slot1</a><T_return, T_arg1>::<a class="el" href="classSigC_1_1Slot1.html">Slot1</a> </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">const <a class="el" href="classsigc_1_1slot.html">parent_type</a>& </td>
<td class="mdname1" valign="top" nowrap> <em>src</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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<td>
<p>
Constructs a slot, copying an existing one.
<p>
<dl compact><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 existing slot to copy. </td></tr>
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</td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a3" doxytag="SigC::Slot1::operator="></a><p>
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template <class T_return, class T_arg1> </td>
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<td class="md" nowrap valign="top"><a class="el" href="classSigC_1_1Slot1.html">Slot1</a>& <a class="el" href="classSigC_1_1Slot1.html">SigC::Slot1</a><T_return, T_arg1>::operator= </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">const <a class="el" href="classsigc_1_1slot.html">parent_type</a>& </td>
<td class="mdname1" valign="top" nowrap> <em>src</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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</td>
<td>
<p>
Overrides this slot making a copy from another slot.
<p>
<dl compact><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 slot from which to make a copy. </td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd><code>this</code>. </dd></dl>
</td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="slot_8h.html">slot.h</a></ul>
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