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<div class="title">Binder Classes<div class="ingroups"><a class="el" href="a01480.html">Utilities</a> » <a class="el" href="a01499.html">Function Objects</a></div></div> </div>
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Collaboration diagram for Binder Classes:</div>
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Namespaces</h2></td></tr>
<tr class="memitem:a01558"><td class="memItemLeft" align="right" valign="top">  </td><td class="memItemRight" valign="bottom"><a class="el" href="a01558.html">std::placeholders</a></td></tr>
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Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02103.html">std::_Placeholder< _Num ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a08463.html">std::binder1st< _Operation ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a08467.html">std::binder2nd< _Operation ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02095.html">std::is_bind_expression< _Tp ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02151.html">std::is_bind_expression< _Bind< _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02167.html">std::is_bind_expression< _Bind_result< _Result, _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02155.html">std::is_bind_expression< const _Bind< _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02171.html">std::is_bind_expression< const _Bind_result< _Result, _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02163.html">std::is_bind_expression< const volatile _Bind< _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02179.html">std::is_bind_expression< const volatile _Bind_result< _Result, _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02159.html">std::is_bind_expression< volatile _Bind< _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02175.html">std::is_bind_expression< volatile _Bind_result< _Result, _Signature > ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02099.html">std::is_placeholder< _Tp ></a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02107.html">std::is_placeholder< _Placeholder< _Num > ></a></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ga7b2eddb726568256e49824ad01a05099"><td class="memTemplParams" colspan="2">template<typename _Func , typename... _BoundArgs> </td></tr>
<tr class="memitem:ga7b2eddb726568256e49824ad01a05099"><td class="memTemplItemLeft" align="right" valign="top">_Bind_helper< __is_socketlike< _Func >::value, _Func, _BoundArgs... >::type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01510.html#ga7b2eddb726568256e49824ad01a05099">std::bind</a> (_Func &&__f, _BoundArgs &&... __args)</td></tr>
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<tr class="memitem:ga4fdb8d8274eed4c834559925d8950769"><td class="memTemplParams" colspan="2">template<typename _Result , typename _Func , typename... _BoundArgs> </td></tr>
<tr class="memitem:ga4fdb8d8274eed4c834559925d8950769"><td class="memTemplItemLeft" align="right" valign="top">_Bindres_helper< _Result, _Func, _BoundArgs... >::type </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01510.html#ga4fdb8d8274eed4c834559925d8950769">std::bind</a> (_Func &&__f, _BoundArgs &&... __args)</td></tr>
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<tr class="memitem:gaa2f509629443172a7077bcf2cd7c9086"><td class="memTemplParams" colspan="2">template<typename _Operation , typename _Tp > </td></tr>
<tr class="memitem:gaa2f509629443172a7077bcf2cd7c9086"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a08463.html">binder1st</a>< _Operation > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01510.html#gaa2f509629443172a7077bcf2cd7c9086">std::bind1st</a> (const _Operation &__fn, const _Tp &__x)</td></tr>
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<tr class="memitem:ga8560a0e4e830e060d38c043f8db37681"><td class="memTemplParams" colspan="2">template<typename _Operation , typename _Tp > </td></tr>
<tr class="memitem:ga8560a0e4e830e060d38c043f8db37681"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a08467.html">binder2nd</a>< _Operation > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01510.html#ga8560a0e4e830e060d38c043f8db37681">std::bind2nd</a> (const _Operation &__fn, const _Tp &__x)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Binders turn functions/functors with two arguments into functors with a single argument, storing an argument to be applied later. For example, a variable <code>B</code> of type <code>binder1st</code> is constructed from a functor <code>f</code> and an argument <code>x</code>. Later, B's <code>operator()</code> is called with a single argument <code>y</code>. The return value is the value of <code>f(x,y)</code>. <code>B</code> can be <em>called</em> with various arguments (y1, y2, ...) and will in turn call <code>f(x,y1)</code>, <code>f(x,y2)</code>, ...</p>
<p>The function <code>bind1st</code> is provided to save some typing. It takes the function and an argument as parameters, and returns an instance of <code>binder1st</code>.</p>
<p>The type <code>binder2nd</code> and its creator function <code>bind2nd</code> do the same thing, but the stored argument is passed as the second parameter instead of the first, e.g., <code>bind2nd</code>(std::minus<float>(),1.3) will create a functor whose <code>operator()</code> accepts a floating-point number, subtracts 1.3 from it, and returns the result. (If <code>bind1st</code> had been used, the functor would perform <em>1.3 - x</em> instead.</p>
<p>Creator-wrapper functions like <code>bind1st</code> are intended to be used in calling algorithms. Their return values will be temporary objects. (The goal is to not require you to type names like <code>std::binder1st<std::plus<int>></code> for declaring a variable to hold the return value from <code>bind1st(std::plus<int>(),5)</code>.</p>
<p>These become more useful when combined with the composition functions.</p>
<p>These functions are deprecated in C++11 and can be replaced by <code>std::bind</code> (or <code>std::tr1::bind</code>) which is more powerful and flexible, supporting functions with any number of arguments. Uses of <code>bind1st</code> can be replaced by <code>std::bind(f, x, std::placeholders::_1)</code> and <code>bind2nd</code> by <code>std::bind(f, std::placeholders::_1, x)</code>. </p>
<h2 class="groupheader">Function Documentation</h2>
<a id="ga7b2eddb726568256e49824ad01a05099"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga7b2eddb726568256e49824ad01a05099">◆ </a></span>bind() <span class="overload">[1/2]</span></h2>
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<td class="memname">_Bind_helper<__is_socketlike<_Func>::value, _Func, _BoundArgs...>::type std::bind </td>
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<p>Function template for std::bind. </p>
<p class="definition">Definition at line <a class="el" href="a00071_source.html#l00808">808</a> of file <a class="el" href="a00071_source.html">functional</a>.</p>
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template<typename _Result , typename _Func , typename... _BoundArgs> </div>
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<p>Function template for std::bind<R>. </p>
<p class="definition">Definition at line <a class="el" href="a00071_source.html#l00832">832</a> of file <a class="el" href="a00071_source.html">functional</a>.</p>
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<td class="memname"><a class="el" href="a08463.html">binder1st</a><_Operation> std::bind1st </td>
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<p>One of the <a class="el" href="a01510.html">binder functors</a>. </p>
<p class="definition">Definition at line <a class="el" href="a00728_source.html#l00135">135</a> of file <a class="el" href="a00728_source.html">binders.h</a>.</p>
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<p>One of the <a class="el" href="a01510.html">binder functors</a>. </p>
<p class="definition">Definition at line <a class="el" href="a00728_source.html#l00170">170</a> of file <a class="el" href="a00728_source.html">binders.h</a>.</p>
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