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<h1 id="firstHeading" class="firstHeading">operator==,!=<span style="font-size:0.7em; line-height:130%">(std::allocator)</span></h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-memory.html">memory</a>&lrm; | <a href="cpp-memory-allocator.html">allocator</a></span></div>
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<td rowspan="142">(1)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T1, <span class="kw1">class</span> T2 <span class="sy1">&gt;</span><br />
<span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span> <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs, <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs <span class="br0">)</span> <span class="kw1">throw</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T1, <span class="kw1">class</span> T2 <span class="sy1">&gt;</span><br />
<span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span> <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs, <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span><br />
<span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T1, <span class="kw1">class</span> T2 <span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span> <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs, <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<td rowspan="142">(2)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T1, <span class="kw1">class</span> T2 <span class="sy1">&gt;</span><br />
<span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span> <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs, <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs <span class="br0">)</span> <span class="kw1">throw</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T1, <span class="kw1">class</span> T2 <span class="sy1">&gt;</span><br />
<span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span> <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T1<span class="sy1">&gt;</span><span class="sy3">&amp;</span> lhs, <span class="kw4">const</span> allocator<span class="sy1">&lt;</span>T2<span class="sy1">&gt;</span><span class="sy3">&amp;</span> rhs <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span><br />
<span class="t-mark-rev t-until-cxx20">(C++20 &#21069;)</span></td>
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<p>&#27604;&#36739;&#20108;&#20010;&#40664;&#35748;&#20998;&#37197;&#22120;&#12290;&#22240;&#20026;&#40664;&#35748;&#20998;&#37197;&#22120;&#26080;&#29366;&#24577;&#65292;&#25925;&#20108;&#20010;&#40664;&#35748;&#20998;&#37197;&#22120;&#22987;&#32456;&#30456;&#31561;&#12290;</p>
<div class="t-li1"><span class="t-li">1)</span> &#36820;&#22238; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span></div>
<div class="t-li1"><span class="t-li">2)</span> &#36820;&#22238; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span></div>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
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<td>lhs, rhs</td>
<td>-</td>
<td>&#35201;&#27604;&#36739;&#30340;&#40664;&#35748;&#20998;&#37197;&#22120;</td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<div class="t-li1"><span class="t-li">1)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span></div>
<div class="t-li1"><span class="t-li">2)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span></div>
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