71 lines
3.9 KiB
HTML
71 lines
3.9 KiB
HTML
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<title>std::pmr::monotonic_buffer_resource::do_is_equal</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::pmr::monotonic_buffer_resource::</span>do_is_equal</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-memory.html">memory</a>‎ | <a href="cpp-memory-monotonic_buffer_resource.html">monotonic buffer resource</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> <span class="kw4">bool</span> do_is_equal<span class="br0">(</span><span class="kw4">const</span> <a href="cpp-memory-memory_resource.html"><span class="kw708">std::<span class="me2">pmr</span><span class="sy4">::</span><span class="me2">memory_resource</span></span></a><span class="sy3">&</span> other<span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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<p>比较 <code>*this</code> 与 <code>other</code> 的相等性——用 <code>monotonic_buffer_resource</code> 分配的内存只能用相同资源解分配。</p>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp">this <span class="sy1">==</span> <span class="sy3">&</span>other</span></span></p>
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<h3><span class="mw-headline" id=".E7.BC.BA.E9.99.B7.E6.8A.A5.E5.91.8A">缺陷报告</span></h3>
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<p>下列更改行为的缺陷报告追溯地应用于以前出版的 C++ 标准。</p>
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<table class="dsctable" style="font-size:0.8em">
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<th>DR</th>
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<th>应用于</th>
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<th>出版时的行为</th>
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<th>正确行为</th>
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<td><a rel="nofollow" class="external text" href="https://cplusplus.github.io/LWG/issue3000">LWG 3000</a></td>
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<td>C++17</td>
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<td>进行了不必要的 <code>dynamic_cast</code></td>
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<td>已移除</td>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<div><a href="cpp-memory-memory_resource-do_is_equal.html"><span class="t-lines"><span>do_is_equal</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-cmark">[虚]</span></span></span></div>
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<td>与另一 <code>memory_resource</code> 比较相等<br />
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<span class="t-mark">(<code>std::pmr::memory_resource</code> 的虚私有成员函数)</span></td>
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