~ubuntu-branches/ubuntu/wily/libsigc++-2.0/wily-proposed

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<h1>Adaptors</h1>Adaptors are functors that alter the signature of a functor's operator()().  

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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><a class="el" href="group__bind.html#ga8">sigc::bind()</a> alters an arbitrary functor by fixing arguments to certain values. <br></td></tr>

 

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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><a class="el" href="group__compose.html#ga2">sigc::compose()</a> combines two or three arbitrary functors. <br></td></tr>

 

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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><a class="el" href="namespacesigc.html#a31">sigc::exception_catch()</a> catches an exception thrown from within the wrapped functor and directs it to a catcher functor. <br></td></tr>

 

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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><a class="el" href="group__hide.html#ga1">sigc::hide()</a> alters an arbitrary functor in that it adds a parameter whose value is ignored on invocation of the returned functor. <br></td></tr>

 

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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><a class="el" href="namespacesigc.html#a44">sigc::group()</a> alters an arbitrary functor by rebuilding its arguments from one or more lambda expressions. <br></td></tr>

 

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<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight"><a class="el" href="group__retype.html#ga1">sigc::retype()</a> alters a sigc::pointer_functor, a sigc::mem_functor or a <a class="el" href="classsigc_1_1slot.html">sigc::slot</a> in that it makes C-style casts to the functor's parameter types of all parameters passed through operator()(). <br></td></tr>

 

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<tr><td class="mdescLeft">&nbsp;</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="mdescLeft">&nbsp;</td><td class="mdescRight">Base type for adaptors.  <a href="structsigc_1_1adapts.html#_details">More...</a><br></td></tr>

 

<tr><td class="mdescLeft">&nbsp;</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="mdescLeft">&nbsp;</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="mdescLeft">&nbsp;</td><td class="mdescRight">Performs a functor on each of the targets of a functor.  <a href="#ga0"></a><br></td></tr>

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The adaptor types libsigc++ provides are created with <a class="el" href="group__bind.html#ga8">bind()</a>, <a class="el" href="group__bind.html#ga17">bind_return()</a>, <a class="el" href="group__hide.html#ga1">hide()</a>, <a class="el" href="group__hide.html#ga2">hide_return()</a>, <a class="el" href="group__retype.html#ga75">retype_return()</a>, <a class="el" href="group__retype.html#ga1">retype()</a>, <a class="el" href="group__compose.html#ga2">compose()</a>, <a class="el" href="namespacesigc.html#a31">exception_catch()</a> and <a class="el" href="namespacesigc.html#a44">group()</a>.<p>

You can easily derive your own adaptor type from <a class="el" href="structsigc_1_1adapts.html">sigc::adapts</a>. <hr><h2>Function Documentation</h2>

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template &lt;class T_action, class T_functor&gt; </td>

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          <td class="md" valign="top">(</td>

          <td class="md" nowrap valign="top">const T_action&amp;&nbsp;</td>

          <td class="mdname" nowrap> <em>_A_action</em>, </td>

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          <td class="md" nowrap>const adaptor_functor&lt;T_functor&gt;&amp;&nbsp;</td>

          <td class="mdname" nowrap> <em>_A_target</em></td>

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          <td class="md">)&nbsp;</td>

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