93 lines
6.0 KiB
HTML
93 lines
6.0 KiB
HTML
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<title>std::experimental::simd_abi::native</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental_simd_native 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::experimental::simd_abi::</span>native</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>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">template</span> <span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw1">using</span> native <span class="sy1">=</span> <span class="coMULTI">/*implementation-defined*/</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><span class="t-c"><span class="mw-geshi cpp source-cpp">native<span class="sy1"><</span>T<span class="sy1">></span></span></span> 是 ABI 标签的实现定义别名。这是用于高效显式向量化的初等标签。</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>意图是用该 ABI 标签产生对于元素类型 T 最高效的，在当前目标系统上受支持的数据并行执行。对于无 ISA 扩展的目标架构， <span class="t-c"><span class="mw-geshi cpp source-cpp">native<span class="sy1"><</span>T<span class="sy1">></span></span></span> 和 <span class="t-c"><span class="mw-geshi cpp source-cpp">compatible<span class="sy1"><</span>T<span class="sy1">></span></span></span> 别名很可能相同。对于有 ISA 扩展的结构，编译器标志可能影响 <span class="t-c"><span class="mw-geshi cpp source-cpp">native<span class="sy1"><</span>T<span class="sy1">></span></span></span> 别名，而 <span class="t-c"><span class="mw-geshi cpp source-cpp">compatible<span class="sy1"><</span>T<span class="sy1">></span></span></span> 会不依赖这种标志而保持相同。</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-experimental-simd-scalar.html"><span class="t-lines"><span>scalar</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(并行 TS v2)</span></span></span></div>
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</div>
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</td>
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<td>存储单个元素的标签类型<br />
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<span class="t-mark">(typedef)</span></td>
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<tr class="t-dsc">
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<div class="t-dsc-member-div">
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<div><a href="cpp-experimental-simd-fixed_size.html"><span class="t-lines"><span>fixed_size</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(并行 TS v2)</span></span></span></div>
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</div>
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</td>
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<td>存储指定数量元素的标签类型<br />
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<span class="t-mark">(别名模板)</span></td>
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<tr class="t-dsc">
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<div class="t-dsc-member-div">
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<div><a href="cpp-experimental-simd-compatible.html"><span class="t-lines"><span>compatible</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(并行 TS v2)</span></span></span></div>
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</div>
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</td>
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<td>确保 ABI 兼容性的标签类型<br />
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<span class="t-mark">(别名模板)</span></td>
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<tr class="t-dsc">
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<div class="t-dsc-member-div">
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<div><a href="cpp-experimental-simd-deduce.html"><span class="t-lines"><span>deduce</span><span>deduce_t</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(并行 TS v2)</span></span></span></div>
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</div>
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</td>
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<td>获得给定的元素类型及元素数的 ABI 类型<br />
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<span class="t-mark">(类模板)</span></td>
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</tr>
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