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<h1>Adaptors</h1>
<p>Adaptors are functors that alter the signature of a functor's operator()(). <a href="#_details">More...</a></p>
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<tr><td colspan="2"><h2>Classes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1adaptor__base.html">sigc::adaptor_base</a></td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">A hint to the compiler. <a href="structsigc_1_1adaptor__base.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1deduce__result__type.html">sigc::deduce_result_type&lt; T_functor, T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7, I_derives_adaptor_base &gt;</a></td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Deduce the return type of a functor. <a href="structsigc_1_1deduce__result__type.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1adaptor__functor.html">sigc::adaptor_functor&lt; T_functor &gt;</a></td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Converts an arbitrary functor into an adaptor type. <a href="structsigc_1_1adaptor__functor.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">struct&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1adapts.html">sigc::adapts&lt; T_functor &gt;</a></td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Base type for adaptors. <a href="structsigc_1_1adapts.html#_details">More...</a><br/></td></tr>
<tr><td colspan="2"><h2>Modules</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__bind.html">bind(), bind_return()</a></td></tr>

<p><tr><td class="mdescLeft">&#160;</td><td class="mdescRight"><p><a class="el" href="group__bind.html#ga2148290d2cf9c1961ec157a085badd5a" title="Creates an adaptor of type sigc::bind_functor which binds the passed argument to...">sigc::bind()</a> alters an arbitrary functor by fixing arguments to certain values. </p>
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<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__hide.html">hide(), hide_return()</a></td></tr>

<p><tr><td class="mdescLeft">&#160;</td><td class="mdescRight"><p><a class="el" href="group__hide.html#gaf28d43958b26c67e314f726540463c44" title="Creates an adaptor of type sigc::hide_functor which adds a dummy parameter to the...">sigc::hide()</a> alters an arbitrary functor in that it adds a parameter whose value is ignored on invocation of the returned functor. </p>
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<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__retype.html">retype(), retype_return()</a></td></tr>

<p><tr><td class="mdescLeft">&#160;</td><td class="mdescRight"><p><a class="el" href="group__retype.html#gafd118b8e28ec60f260d8182c0552f9b2" title="Creates an adaptor of type sigc::retype_functor which performs C-style casts on the...">sigc::retype()</a> alters a sigc::pointer_functor, a sigc::mem_functor or a <a class="el" href="classsigc_1_1slot.html" title="Convenience wrapper for the numbered sigc::slot# templates.">sigc::slot</a> in that it makes C-style casts to the functor's parameter types of all parameters passed through operator()(). </p>
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<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__compose.html">compose()</a></td></tr>

<p><tr><td class="mdescLeft">&#160;</td><td class="mdescRight"><p><a class="el" href="group__compose.html#ga57692495ec80dd855d4653adde4c8f49" title="Creates an adaptor of type sigc::compose1_functor which combines two functors.">sigc::compose()</a> combines two or three arbitrary functors. </p>
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<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__exception__catch.html">exception_catch()</a></td></tr>

<p><tr><td class="mdescLeft">&#160;</td><td class="mdescRight"><p>sigc::exception_catch() catches an exception thrown from within the wrapped functor and directs it to a catcher functor. </p>
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<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group__.html">group()</a></td></tr>

<p><tr><td class="mdescLeft">&#160;</td><td class="mdescRight"><p>sigc::group() alters an arbitrary functor by rebuilding its arguments from one or more lambda expressions. </p>
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<tr><td colspan="2"><h2>Functions</h2></td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;class T_action , class T_functor &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="group__adaptors.html#gafb822cac23e9bf97c164793a36246d5c">sigc::visit_each</a> (const T_action&amp; _A_action, const adaptor_functor&lt; T_functor &gt;&amp; _A_target)</td></tr>
<tr><td class="mdescLeft">&#160;</td><td class="mdescRight">Performs a functor on each of the targets of a functor. <a href="#gafb822cac23e9bf97c164793a36246d5c"></a><br/></td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Adaptors are functors that alter the signature of a functor's operator()(). </p>
<p>The adaptor types libsigc++ provides are created with <a class="el" href="group__bind.html#ga2148290d2cf9c1961ec157a085badd5a" title="Creates an adaptor of type sigc::bind_functor which binds the passed argument to...">bind()</a>, <a class="el" href="group__bind.html#ga8a001b0bb588d2ac1af712781b89dc8a" title="Creates an adaptor of type sigc::bind_return_functor which fixes the return value...">bind_return()</a>, <a class="el" href="group__hide.html#gaf28d43958b26c67e314f726540463c44" title="Creates an adaptor of type sigc::hide_functor which adds a dummy parameter to the...">hide()</a>, <a class="el" href="group__hide.html#gad7e18e1edbbefe13216eb344bd522f0a" title="Creates an adaptor of type sigc::retype_return_functor which drops the return value...">hide_return()</a>, <a class="el" href="group__retype.html#ga263b14f3b0e5616cd3b870d78a2627fa" title="Creates an adaptor of type sigc::retype_return_functor which performs a C-style cast...">retype_return()</a>, <a class="el" href="group__retype.html#gafd118b8e28ec60f260d8182c0552f9b2" title="Creates an adaptor of type sigc::retype_functor which performs C-style casts on the...">retype()</a>, <a class="el" href="group__compose.html#ga57692495ec80dd855d4653adde4c8f49" title="Creates an adaptor of type sigc::compose1_functor which combines two functors.">compose()</a>, exception_catch() and group().</p>
<p>You can easily derive your own adaptor type from <a class="el" href="structsigc_1_1adapts.html" title="Base type for adaptors.">sigc::adapts</a>. </p>
<hr/><h2>Function Documentation</h2>
<a class="anchor" id="gafb822cac23e9bf97c164793a36246d5c"></a><!-- doxytag: member="sigc::visit_each" ref="gafb822cac23e9bf97c164793a36246d5c" args="(const T_action &amp;_A_action, const adaptor_functor&lt; T_functor &gt; &amp;_A_target)" -->
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template &lt;class T_action , class T_functor &gt; </div>
      <table class="memname">
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          <td class="memname">void sigc::visit_each </td>
          <td>(</td>
          <td class="paramtype">const T_action &amp;&#160;</td>
          <td class="paramname"> <em>_A_action</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const adaptor_functor&lt; T_functor &gt; &amp;&#160;</td>
          <td class="paramname"> <em>_A_target</em></td><td>&#160;</td>
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          <td></td>
          <td>)</td>
          <td></td><td></td><td><code> [inline]</code></td>
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<p>Performs a functor on each of the targets of a functor. </p>
<p>The function overload for <a class="el" href="structsigc_1_1adaptor__functor.html" title="Converts an arbitrary functor into an adaptor type.">sigc::adaptor_functor</a> performs a functor on the functor stored in the <a class="el" href="structsigc_1_1adaptor__functor.html" title="Converts an arbitrary functor into an adaptor type.">sigc::adaptor_functor</a> object. </p>

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