55 lines
3.1 KiB
HTML
55 lines
3.1 KiB
HTML
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<title>std::pmr::memory_resource::do_deallocate</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_memory_memory_resource_do_deallocate skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::pmr::memory_resource::</span>do_deallocate</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-memory_resource.html">memory resource</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> <span class="kw4">void</span> do_deallocate<span class="br0">(</span><span class="kw4">void</span><span class="sy2">*</span> p, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> bytes, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> alignment<span class="br0">)</span> <span class="sy1">=</span> <span class="nu0">0</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>解分配 <code>p</code> 所指向的存储。</p>
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<p><code>p</code> 必须是先前在比较等于 <code>*this</code> 的 <code>memory_resource</code> 上对 <code>allocate(bytes, alignment)</code> 的调用所返回的值，且它指向的存储必须未被解分配，否则行为未定义。</p>
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<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">异常</span></h3>
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<p>不抛出任何异常。</p>
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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 class="t-dsc-member-div">
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<div><a href="cpp-memory-memory_resource-deallocate.html"><span class="t-lines"><span>deallocate</span></span></a></div>
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<td>解分配内存<br />
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<span class="t-mark">(公开成员函数)</span></td>
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