51 lines
3.4 KiB
HTML
51 lines
3.4 KiB
HTML
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<title>std::experimental::vector_aligned_tag, std::experimental::vector_aligned</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::experimental::</span>vector_aligned_tag, <span style="font-size:0.7em; line-height:130%">std::experimental::</span>vector_aligned</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-experimental.html">experimental</a>‎ | <a href="cpp-experimental-simd.html">simd</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/simd&action=edit&redlink=1" class="new" title="cpp/header/experimental/simd（页面不存在）"><experimental/simd></a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">struct</span> vector_aligned_tag <span class="br0">{</span><span class="br0">}</span><span class="sy4">;</span><br />
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<span class="kw1">inline</span> <span class="kw4">constexpr</span> vector_aligned_tag vector_aligned<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-since-parallelism-ts-2 t-mark-ts">(并行 TS v2)</span></td>
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<p>此标签类型指示 <span class="t-c"><span class="mw-geshi cpp source-cpp">copy_from</span></span> 和 <span class="t-c"><span class="mw-geshi cpp source-cpp">copy_to</span></span> 的缓冲区对齐到 <span class="t-c"><span class="mw-geshi cpp source-cpp">memory_alignment_v<span class="sy1"><</span>T, U<span class="sy1">></span></span></span> ，其中赋值操作在 <span class="t-c"><span class="mw-geshi cpp source-cpp">simd</span></span>/<span class="t-c"><span class="mw-geshi cpp source-cpp">simd_mask</span></span> 类型 T 上操作，而缓冲区的元素类型为 U 。</p>
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<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">注意</span></h3>
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<p>此标签类型允许实现按向量对齐的加载和存储。</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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