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<title>libsigc++ 2.0: sigc::internal::signal_emit2< T_return, T_arg1, T_arg2, T_accumulator > Struct Template Reference</title>
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<h1>sigc::internal::signal_emit2< T_return, T_arg1, T_arg2, T_accumulator > Struct Template Reference</h1>Abstracts signal emission.
<a href="#_details">More...</a>
<p>
<a href="structsigc_1_1internal_1_1signal__emit2-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="structsigc_1_1internal_1_1signal__emit2.html">signal_emit2</a>< T_return,<br>
T_arg1, T_arg2, T_accumulator > </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#w0">self_type</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef T_accumulator::result_type </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#w1">result_type</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="classsigc_1_1slot.html">slot</a>< T_return, T_arg1,<br>
T_arg2 > </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#w2">slot_type</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="structsigc_1_1internal_1_1slot__iterator__buf.html">internal::slot_iterator_buf</a><<br>
<a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">self_type</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#w3">slot_iterator_buf_type</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="structsigc_1_1slot__const__iterator.html">signal_impl::const_iterator_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#w4">iterator_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="structsigc_1_1internal_1_1signal__emit2.html#a0">signal_emit2</a> (typename <a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg1>::take _A_a1, typename <a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg2>::take _A_a2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Instantiates the class. <a href="#a0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">T_return </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#a1">operator()</a> (const <a class="el" href="classsigc_1_1slot.html">slot_type</a>& _A_slot) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Invokes a slot using the buffered parameter values. <a href="#a1"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#w1">result_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#e0">emit</a> (<a class="el" href="structsigc_1_1internal_1_1signal__impl.html">signal_impl</a>* impl, typename <a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg1>::take _A_a1, typename <a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg2>::take _A_a2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Executes a list of slots using an accumulator of type <em>T_accumulator</em>. <a href="#e0"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg1>::take </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#o0">_A_a1_</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg2>::take </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#o1">_A_a2_</a></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
<h3>template <class T_return, class T_arg1, class T_arg2, class T_accumulator><br>
struct sigc::internal::signal_emit2< T_return, T_arg1, T_arg2, T_accumulator ></h3>
Abstracts signal emission.
<p>
This template implements the <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#e0">emit()</a> function of <a class="el" href="classsigc_1_1signal2.html">signal2</a>. Template specializations are available to optimize signal emission when no accumulator is used, i.e. the template argument <em>T_accumulator</em> is <code>nil</code>.
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<hr><h2>Member Typedef Documentation</h2>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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<td class="md" nowrap valign="top">typedef <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">signal_emit2</a><T_return, T_arg1,T_arg2, T_accumulator> <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">sigc::internal::signal_emit2</a><T_return, T_arg1, T_arg2, T_accumulator>::<a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">self_type</a> </td>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0" doxytag="sigc::internal::signal_emit2::signal_emit2"></a><p>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">typename <a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg1>::take </td>
<td class="mdname" nowrap> <em>_A_a1</em>, </td>
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<td class="mdname" nowrap> <em>_A_a2</em></td>
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Instantiates the class.
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The parameters are stored in member variables. <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#a1">operator()()</a> passes the values on to some slot. </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="e0" doxytag="sigc::internal::signal_emit2::emit"></a><p>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top"><a class="el" href="structsigc_1_1internal_1_1signal__impl.html">signal_impl</a>* </td>
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Executes a list of slots using an accumulator of type <em>T_accumulator</em>.
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The arguments are buffered in a temporary instance of <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">signal_emit2</a>.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>_A_a1</em> </td><td>Argument to be passed on to the slots. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>_A_a2</em> </td><td>Argument to be passed on to the slots. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>The accumulated return values of the slot invocations as processed by the accumulator. </dd></dl>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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<td class="md" nowrap valign="top">T_return <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">sigc::internal::signal_emit2</a><T_return, T_arg1, T_arg2, T_accumulator>::operator() </td>
<td class="md" valign="top">(</td>
<td class="md" nowrap valign="top">const <a class="el" href="classsigc_1_1slot.html">slot_type</a>& </td>
<td class="mdname1" valign="top" nowrap> <em>_A_slot</em> </td>
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Invokes a slot using the buffered parameter values.
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>_A_slot</em> </td><td>Some slot to invoke. </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>The slot's return value. </dd></dl>
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<hr><h2>Member Data Documentation</h2>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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<td class="md" nowrap valign="top"><a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg1>::take <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">sigc::internal::signal_emit2</a><T_return, T_arg1, T_arg2, T_accumulator>::<a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#o0">_A_a1_</a> </td>
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template <class T_return, class T_arg1, class T_arg2, class T_accumulator> </td>
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<td class="md" nowrap valign="top"><a class="el" href="structsigc_1_1type__trait.html">type_trait</a><T_arg2>::take <a class="el" href="structsigc_1_1internal_1_1signal__emit2.html">sigc::internal::signal_emit2</a><T_return, T_arg1, T_arg2, T_accumulator>::<a class="el" href="structsigc_1_1internal_1_1signal__emit2.html#o1">_A_a2_</a> </td>
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<hr>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="signal_8h.html">signal.h</a></ul>
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