58 lines
3.5 KiB
HTML
58 lines
3.5 KiB
HTML
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<title>std::pmr::memory_resource::deallocate</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::pmr::memory_resource::</span>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="kw4">void</span> deallocate<span class="br0">(</span><span class="kw4">void</span><span class="sy2">*</span> p,<br /></span>
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<p> <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> bytes,<br /></p>
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<a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> alignment <span class="sy1">=</span> alignof<span class="br0">(</span><a href="cpp-types-max_align_t.html"><span class="kw104">std::<span class="me2">max_align_t</span></span></a><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</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。 <code>p</code> 应当是先前在比较等于 <code>*this</code> 的 <code>memory_resource</code> 上对 <code>allocate(bytes, alignment)</code> 的调用所返回的值，且它指向的存储应当未被解分配。</p>
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<p>等价于 <span class="t-c"><span class="mw-geshi cpp source-cpp">do_deallocate<span class="br0">(</span>p, bytes, alignment<span class="br0">)</span><span class="sy4">;</span></span></span> 。</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><a href="cpp-memory-memory_resource-do_deallocate.html"><span class="t-lines"><span>do_deallocate</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>解分配内存<br />
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<span class="t-mark">(虚私有成员函数)</span></td>
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