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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="mem_fn.html" title="cpp/utility/functional/mem fn"><span class="t-lines"><span>mem_fn</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="bad_function_call.html" title="cpp/utility/functional/bad function call"><span class="t-lines"><span>bad_function_call</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="invoke.html" title="cpp/utility/functional/invoke"><span class="t-lines"><span>invoke</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Bind </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="bind.html" title="cpp/utility/functional/bind"><span class="t-lines"><span>bind</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="placeholders.html" title="cpp/utility/functional/placeholders"><span class="t-lines"><span>_1, _2, _3, ...</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Reference wrappers </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reference_wrapper.html" title="cpp/utility/functional/reference wrapper"><span class="t-lines"><span>reference_wrapper</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ref.html" title="cpp/utility/functional/ref"><span class="t-lines"><span>ref</span><span>cref</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Operator wrappers </td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="minus.html" title="cpp/utility/functional/minus"><span class="t-lines"><span>minus</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="negate.html" title="cpp/utility/functional/negate"><span class="t-lines"><span>negate</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="multiplies.html" title="cpp/utility/functional/multiplies"><span class="t-lines"><span>multiplies</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="divides.html" title="cpp/utility/functional/divides"><span class="t-lines"><span>divides</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="modulus.html" title="cpp/utility/functional/modulus"><span class="t-lines"><span>modulus</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="logical_and.html" title="cpp/utility/functional/logical and"><span class="t-lines"><span>logical_and</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="logical_or.html" title="cpp/utility/functional/logical or"><span class="t-lines"><span>logical_or</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="logical_not.html" title="cpp/utility/functional/logical not"><span class="t-lines"><span>logical_not</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="equal_to.html" title="cpp/utility/functional/equal to"><span class="t-lines"><span>equal_to</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="not_equal_to.html" title="cpp/utility/functional/not equal to"><span class="t-lines"><span>not_equal_to</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="greater.html" title="cpp/utility/functional/greater"><span class="t-lines"><span>greater</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="less.html" title="cpp/utility/functional/less"><span class="t-lines"><span>less</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="greater_equal.html" title="cpp/utility/functional/greater equal"><span class="t-lines"><span>greater_equal</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="less_equal.html" title="cpp/utility/functional/less equal"><span class="t-lines"><span>less_equal</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="bit_and.html" title="cpp/utility/functional/bit and"><span class="t-lines"><span>bit_and</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="bit_or.html" title="cpp/utility/functional/bit or"><span class="t-lines"><span>bit_or</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="bit_xor.html" title="cpp/utility/functional/bit xor"><span class="t-lines"><span>bit_xor</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="bit_not.html" title="cpp/utility/functional/bit not"><span class="t-lines"><span>bit_not</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Negators </td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="unary_negate.html" title="cpp/utility/functional/unary negate"><span class="t-lines"><span>unary_negate</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><strong class="selflink"><span class="t-lines"><span>binary_negate</span></span></strong></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="not1.html" title="cpp/utility/functional/not1"><span class="t-lines"><span>not1</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="not2.html" title="cpp/utility/functional/not2"><span class="t-lines"><span>not2</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Deprecated binders and adaptors </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="unary_function.html" title="cpp/utility/functional/unary function"><span class="t-lines"><span>unary_function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="binary_function.html" title="cpp/utility/functional/binary function"><span class="t-lines"><span>binary_function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ptr_fun.html" title="cpp/utility/functional/ptr fun"><span class="t-lines"><span>ptr_fun</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="pointer_to_unary_function.html" title="cpp/utility/functional/pointer to unary function"><span class="t-lines"><span>pointer_to_unary_function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="pointer_to_binary_function.html" title="cpp/utility/functional/pointer to binary function"><span class="t-lines"><span>pointer_to_binary_function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="mem_fun.html" title="cpp/utility/functional/mem fun"><span class="t-lines"><span>mem_fun</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="mem_fun_t.html" title="cpp/utility/functional/mem fun t"><span class="t-lines"><span>mem_fun_t</span><span>mem_fun1_t</span><span>const_mem_fun_t</span><span>const_mem_fun1_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="mem_fun_ref.html" title="cpp/utility/functional/mem fun ref"><span class="t-lines"><span>mem_fun_ref</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="mem_fun_ref_t.html" title="cpp/utility/functional/mem fun ref t"><span class="t-lines"><span>mem_fun_ref_t</span><span>mem_fun1_ref_t</span><span>const_mem_fun_ref_t</span><span>const_mem_fun1_ref_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="binder12.html" title="cpp/utility/functional/binder12"><span class="t-lines"><span>binder1st</span><span>binder2nd</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="bind12.html" title="cpp/utility/functional/bind12"><span class="t-lines"><span>bind1st</span><span>bind2nd</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/functional/navbar_content&amp;action=edit">&#91;edit&#93;</a></span></div></div></div></div><div class="t-navbar-sep">&#160;</div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dsc-header">
<td> <div>Defined in header <code><a href="../../header/functional.html" title="cpp/header/functional">&lt;functional&gt;</a></code>
 </div></td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody class="t-dcl-rev">
<tr class="t-dcl t-until-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> Predicate <span class="sy1">&gt;</span><br />
<p><span class="kw1">struct</span> binary_negate <span class="sy4">:</span><br />
&#160; &#160; <span class="kw1">public</span> <a href="binary_function.html"><span class="kw953">std::<span class="me2">binary_function</span></span></a><span class="sy1">&lt;</span><br />
&#160; &#160; &#160; &#160; Predicate<span class="sy4">::</span><span class="me2">first_argument_type</span>,<br />
&#160; &#160; &#160; &#160; Predicate<span class="sy4">::</span><span class="me2">second_argument_type</span>,<br />
&#160; &#160; &#160; &#160; <span class="kw4">bool</span><br />
</p>
&#160; &#160; <span class="sy1">&gt;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-until-cxx11">(until C++11)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> Predicate <span class="sy1">&gt;</span><br />
<span class="kw1">struct</span> binary_negate<span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx11">(since C++11)</span> </td>
</tr>
</tbody><tbody>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p><code>binary_negate</code> is a wrapper function object returning the complement of the binary predicate it holds.
</p><p>The binary predicate type must define two member types, <code>first_argument_type</code> and <code>second_argument_type</code>, that are convertible to the predicate's parameter types. The function objects obtained from <span class="t-lc">std::owner_less</span>, <span class="t-lc">std::ref</span>, <span class="t-lc">std::cref</span>, <span class="t-lc">std::plus</span>, <span class="t-lc">std::minus</span>, <span class="t-lc">std::multiplies</span>, <span class="t-lc">std::divides</span>, <span class="t-lc">std::modulus</span>, <span class="t-lc">std::equal_to</span>, <span class="t-lc">std::not_equal_to</span>, <span class="t-lc">std::greater</span>, <span class="t-lc">std::less</span>, <span class="t-lc">std::greater_equal</span>, <span class="t-lc">std::less_equal</span>, <span class="t-lc">std::logical_not</span>, <span class="t-lc">std::logical_or</span>, <span class="t-lc">std::bit_and</span>, <span class="t-lc">std::bit_or</span>, <span class="t-lc">std::bit_xor</span>, <span class="t-lc">std::mem_fn</span>, <span class="t-lc">std::map::value_comp</span>, <span class="t-lc">std::multimap::value_comp</span>, <span class="t-lc">std::function</span>, or from a call to <span class="t-lc">std::not2</span> have these types defined, as are function objects derived from the deprecated <span class="t-lc">std::binary_function</span>. 
</p><p><code>binary_negate</code> objects are easily constructed with helper function <span class="t-lc">std::not2</span>.
</p>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="binary_negate.html#Member_types"><span class="tocnumber">1</span> <span class="toctext">Member types</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="binary_negate.html#Member_functions"><span class="tocnumber">2</span> <span class="toctext">Member functions</span></a></li>
<li class="toclevel-1"><a href="binary_negate.html#std::binary_negate::binary_negate"><span class="tocnumber">3</span> <span class="toctext"><span>std::binary_negate::</span>binary_negate</span></a>
<ul>
<li class="toclevel-2"><a href="binary_negate.html#Parameters"><span class="tocnumber">3.1</span> <span class="toctext">Parameters</span></a></li>
</ul>
</li>
<li class="toclevel-1"><a href="binary_negate.html#std::binary_negate::operator.28.29"><span class="tocnumber">4</span> <span class="toctext"><span>std::binary_negate::</span>operator()</span></a>
<ul>
<li class="toclevel-2"><a href="binary_negate.html#Parameters_2"><span class="tocnumber">4.1</span> <span class="toctext">Parameters</span></a></li>
<li class="toclevel-2"><a href="binary_negate.html#Return_value"><span class="tocnumber">4.2</span> <span class="toctext">Return value</span></a></li>
<li class="toclevel-2 tocsection-6"><a href="binary_negate.html#Example"><span class="tocnumber">4.3</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-2 tocsection-7"><a href="binary_negate.html#See_also"><span class="tocnumber">4.4</span> <span class="toctext">See also</span></a></li>
</ul>
</li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/utility/functional/binary_negate&amp;action=edit&amp;section=1" title="Edit section: Member types">edit</a>]</span> <span class="mw-headline" id="Member_types">Member types</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-hitem">
<td>  Type
</td>
<td>  Definition
</td></tr>


<tr class="t-dsc">
<td>  <code>first_argument_type</code>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp">Predicate<span class="sy4">::</span><span class="me2">first_argument_type</span></span></span>
</td></tr>


<tr class="t-dsc">
<td>  <code>second_argument_type</code>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp">Predicate<span class="sy4">::</span><span class="me2">second_argument_type</span></span></span>
</td></tr>


<tr class="t-dsc">
<td>  <code>result_type</code>
</td>
<td>  <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span></span></span>
</td></tr>

</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/utility/functional/binary_negate&amp;action=edit&amp;section=2" title="Edit section: Member functions">edit</a>]</span> <span class="mw-headline" id="Member_functions">Member functions</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div t-dsc-member-nobold-div"><div><span class="t-lines"><span>(constructor)</span></span></div></div>
</td>
<td>  constructs a new binary_negate object with the supplied predicate <br /> <span class="t-mark">(public member function)</span>
</td></tr>


<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><span class="t-lines"><span>operator()</span></span></div></div>
</td>
<td>   returns the logical complement of the result of a call to the stored predicate <br /> <span class="t-mark">(public member function)</span>
</td></tr>

</table>
<div class="t-member">
<h2> <span class="mw-headline" id="std::binary_negate::binary_negate"> <span style="font-size:0.7em; line-height:130%">std::binary_negate::</span>binary_negate </span></h2>
<table class="t-dcl-begin"><tbody>
</tbody>
<tbody class="t-dcl-rev">
<tr class="t-dcl t-until-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> binary_negate<span class="br0">&#40;</span> Predicate <span class="kw4">const</span><span class="sy3">&amp;</span> pred <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-until-cxx14">(until C++14)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> <span class="kw4">constexpr</span> binary_negate<span class="br0">&#40;</span> Predicate <span class="kw4">const</span><span class="sy3">&amp;</span> pred <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx14">(since C++14)</span> </td>
</tr>
</tbody><tbody>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>Constructs a <code>binary_negate</code> function object with the stored predicate <code>pred</code>.
</p>
<h3> <span class="mw-headline" id="Parameters">Parameters</span></h3>
<table class="t-par-begin">


<tr class="t-par">
<td>  pred
</td>
<td> -
</td>
<td>  predicate function object
</td></tr></table>
</div>
<div class="t-member">
<h2> <span class="mw-headline" id="std::binary_negate::operator.28.29"> <span style="font-size:0.7em; line-height:130%">std::binary_negate::</span>operator() </span></h2>
<table class="t-dcl-begin"><tbody>
</tbody>
<tbody class="t-dcl-rev">
<tr class="t-dcl t-until-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span> operator<span class="br0">&#40;</span><span class="br0">&#41;</span><span class="br0">&#40;</span> first_argument_type <span class="kw4">const</span><span class="sy3">&amp;</span> x,<br />
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;second_argument_type <span class="kw4">const</span><span class="sy3">&amp;</span> y <span class="br0">&#41;</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-until-cxx14">(until C++14)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="br0">&#40;</span><span class="br0">&#41;</span><span class="br0">&#40;</span> first_argument_type <span class="kw4">const</span><span class="sy3">&amp;</span> x,<br />
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160;second_argument_type <span class="kw4">const</span><span class="sy3">&amp;</span> y <span class="br0">&#41;</span> <span class="kw4">const</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx14">(since C++14)</span> </td>
</tr>
</tbody><tbody>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>Returns the logical complement of the result of calling  <span class="t-c"><span class="mw-geshi cpp source-cpp">pred<span class="br0">&#40;</span>x, y<span class="br0">&#41;</span></span></span>.
</p>
<h3> <span class="mw-headline" id="Parameters_2">Parameters</span></h3>
<table class="t-par-begin">


<tr class="t-par">
<td>  x
</td>
<td> -
</td>
<td>  first argument to pass through to predicate
</td></tr>
<tr class="t-par">
<td>  y
</td>
<td> -
</td>
<td>  second argument to pass through to predicate
</td></tr></table>
<h3> <span class="mw-headline" id="Return_value">Return value</span></h3>
<p>The logical complement of the result of calling <span class="t-c"><span class="mw-geshi cpp source-cpp">pred<span class="br0">&#40;</span>x, y<span class="br0">&#41;</span></span></span>.
</p>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/utility/functional/binary_negate&amp;action=edit&amp;section=6" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include &lt;algorithm&gt;</span>
<span class="co2">#include &lt;functional&gt;</span>
<span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;vector&gt;</span>
&#160;
<span class="kw1">struct</span> same <span class="sy4">:</span> <a href="binary_function.html"><span class="kw953">std::<span class="me2">binary_function</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span>, <span class="kw4">int</span>, <span class="kw4">bool</span><span class="sy1">&gt;</span>
<span class="br0">&#123;</span>
    <span class="kw4">bool</span> operator<span class="br0">&#40;</span><span class="br0">&#41;</span><span class="br0">&#40;</span><span class="kw4">int</span> a, <span class="kw4">int</span> b<span class="br0">&#41;</span> <span class="kw4">const</span> <span class="br0">&#123;</span> <span class="kw1">return</span> a <span class="sy1">==</span> b<span class="sy4">;</span> <span class="br0">&#125;</span>
<span class="br0">&#125;</span><span class="sy4">;</span>
&#160;
<span class="kw4">int</span> main<span class="br0">&#40;</span><span class="br0">&#41;</span>
<span class="br0">&#123;</span>
    <a href="../../container/vector.html"><span class="kw1093">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> v1<span class="sy4">;</span>
    <a href="../../container/vector.html"><span class="kw1093">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> v2<span class="sy4">;</span>
    <span class="kw1">for</span> <span class="br0">&#40;</span><span class="kw4">int</span> i <span class="sy1">=</span> <span class="nu0">0</span><span class="sy4">;</span> i <span class="sy1">&lt;</span> <span class="nu0">10</span><span class="sy4">;</span> <span class="sy2">++</span>i<span class="br0">&#41;</span> v1.<span class="me1">push_back</span><span class="br0">&#40;</span>i<span class="br0">&#41;</span><span class="sy4">;</span>
    <span class="kw1">for</span> <span class="br0">&#40;</span><span class="kw4">int</span> i <span class="sy1">=</span> <span class="nu0">0</span><span class="sy4">;</span> i <span class="sy1">&lt;</span> <span class="nu0">10</span><span class="sy4">;</span> <span class="sy2">++</span>i<span class="br0">&#41;</span> v2.<span class="me1">push_back</span><span class="br0">&#40;</span><span class="nu0">10</span> <span class="sy2">-</span> i<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <a href="../../container/vector.html"><span class="kw1093">std::<span class="me2">vector</span></span></a><span class="sy1">&lt;</span><span class="kw4">bool</span><span class="sy1">&gt;</span> v3<span class="br0">&#40;</span>v1.<span class="me1">size</span><span class="br0">&#40;</span><span class="br0">&#41;</span><span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    std<span class="sy4">::</span><span class="me2">binary_negate</span><span class="sy1">&lt;</span>same<span class="sy1">&gt;</span> not_same<span class="br0">&#40;</span><span class="br0">&#40;</span>same<span class="br0">&#40;</span><span class="br0">&#41;</span><span class="br0">&#41;</span><span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <a href="../../algorithm/transform.html"><span class="kw1321">std::<span class="me2">transform</span></span></a><span class="br0">&#40;</span>v1.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span>, v1.<span class="me1">end</span><span class="br0">&#40;</span><span class="br0">&#41;</span>, v2.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span>, v3.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span>, not_same<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="coMULTI">/* C++11 solution:
        // Use std::function&lt;bool (int, int)&gt;
        std::function&lt;bool (int, int)&gt; not_same =
            [](int x, int y)-&gt;bool{ return&#160;!same()(x, y); };
&#160;
        std::transform(v1.begin(), v1.end(), v2.begin(), v3.begin(), not_same);
    */</span>
&#160;
    <a href="../../io/cout.html"><span class="kw1480">std::<span class="me2">cout</span></span></a>.<span class="me1">setf</span><span class="br0">&#40;</span><a href="../../io/ios_base/fmtflags.html"><span class="kw1413">std::<span class="me2">ios_base</span><span class="sy4">::</span><span class="me2">boolalpha</span></span></a><span class="br0">&#41;</span><span class="sy4">;</span>
    <span class="kw1">for</span> <span class="br0">&#40;</span><span class="kw4">int</span> i <span class="sy1">=</span> <span class="nu0">0</span><span class="sy4">;</span> i <span class="sy1">&lt;</span> <span class="nu0">10</span><span class="sy4">;</span> <span class="sy2">++</span>i<span class="br0">&#41;</span>
        <a href="../../io/cout.html"><span class="kw1480">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> v1<span class="br0">&#91;</span>i<span class="br0">&#93;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">' '</span> <span class="sy1">&lt;&lt;</span> v2<span class="br0">&#91;</span>i<span class="br0">&#93;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">' '</span> <span class="sy1">&lt;&lt;</span> v3<span class="br0">&#91;</span>i<span class="br0">&#93;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
<span class="br0">&#125;</span></pre></div></div>
<p>Output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">0 10 true
1 9 true
2 8 true
3 7 true
4 6 true
5 5 false
6 4 true
7 3 true
8 2 true
9 1 true</pre></div></div> 
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/utility/functional/binary_negate&amp;action=edit&amp;section=7" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="binary_function.html" title="cpp/utility/functional/binary function"> <span class="t-lines"><span>binary_function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div>
</td>
<td>   adaptor-compatible binary function base class   <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/functional/dsc_binary_function&amp;action=edit">&#91;edit&#93;</a></span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="function.html" title="cpp/utility/functional/function"> <span class="t-lines"><span>function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   wraps callable object of any type with specified function call signature  <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/functional/dsc_function&amp;action=edit">&#91;edit&#93;</a></span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="not2.html" title="cpp/utility/functional/not2"> <span class="t-lines"><span>not2</span></span></a></div></div>
</td>
<td>   constructs custom <span class="t-lc">std::binary_negate</span> object  <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/functional/dsc_not2&amp;action=edit">&#91;edit&#93;</a></span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="ptr_fun.html" title="cpp/utility/functional/ptr fun"> <span class="t-lines"><span>ptr_fun</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-cxx17">(until C++17)</span></span></span></div></div>
</td>
<td>   creates an adaptor-compatible function object wrapper from a pointer to function  <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/functional/dsc_ptr_fun&amp;action=edit">&#91;edit&#93;</a></span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="unary_negate.html" title="cpp/utility/functional/unary negate"> <span class="t-lines"><span>unary_negate</span></span></a></div></div>
</td>
<td>   wrapper function object returning the complement of the unary predicate it holds  <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/functional/dsc_unary_negate&amp;action=edit">&#91;edit&#93;</a></span>
</td></tr>
</table>

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