106 lines
7.4 KiB
HTML
106 lines
7.4 KiB
HTML
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<title>std::experimental::simd_cast, std::experimental::static_simd_cast</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental_simd_abi_cast 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::</span>simd_cast, <span style="font-size:0.7em; line-height:130%">std::experimental::</span>static_simd_cast</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="kw1">class</span> Abi <span class="sy1">></span><br /></span>
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<p>fixed_size_simd<span class="sy1"><</span>T, simd_size_v<span class="sy1"><</span>T, Abi<span class="sy1">>></span><br /></p>
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to_fixed_size<span class="br0">(</span> <span class="kw4">const</span> simd<span class="sy1"><</span>T, Abi<span class="sy1">></span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></div>
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<td>(1)</td>
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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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<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="kw1">class</span> Abi <span class="sy1">></span><br /></span>
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<p>fixed_size_simd_mask<span class="sy1"><</span>T, simd_size_v<span class="sy1"><</span>T, Abi<span class="sy1">>></span><br /></p>
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to_fixed_size<span class="br0">(</span> <span class="kw4">const</span> simd_mask<span class="sy1"><</span>T, Abi<span class="sy1">></span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></div>
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</td>
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<td>(2)</td>
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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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</tr>
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<tr class="t-dcl t-since-parallelism_ts_2">
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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, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> N <span class="sy1">></span><br /></span>
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<p>native_simd<span class="sy1"><</span>T<span class="sy1">></span><br /></p>
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to_native<span class="br0">(</span> <span class="kw4">const</span> fixed_size_simd<span class="sy1"><</span>T, N<span class="sy1">></span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></div>
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</td>
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<td>(3)</td>
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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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</tr>
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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, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> N <span class="sy1">></span><br /></span>
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<p>native_simd_mask<span class="sy1"><</span>T<span class="sy1">></span><br /></p>
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to_native<span class="br0">(</span> <span class="kw4">const</span> fixed_size_simd_mask<span class="sy1"><</span>T, N<span class="sy1">>></span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></div>
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<td>(4)</td>
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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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</tr>
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<tr class="t-dcl t-since-parallelism_ts_2">
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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, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> N <span class="sy1">></span><br /></span>
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<p>simd<span class="sy1"><</span>T<span class="sy1">></span><br /></p>
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to_compatible<span class="br0">(</span> <span class="kw4">const</span> fixed_size_simd<span class="sy1"><</span>T, N<span class="sy1">></span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></div>
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</td>
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<td>(5)</td>
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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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</tr>
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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, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> N <span class="sy1">></span><br /></span>
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<p>simd_mask<span class="sy1"><</span>T<span class="sy1">></span><br /></p>
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to_compatible<span class="br0">(</span> <span class="kw4">const</span> fixed_size_simd_mask<span class="sy1"><</span>T, N<span class="sy1">></span><span class="sy3">&</span> v <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></div>
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<td>(6)</td>
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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>返回有相同元素但有不同 ABI 的 simd 或 simd_mask 对象。</p>
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<div class="t-li1"><span class="t-li">3-6)</span> 这些函数仅若 N 与返回类型的大小相同才参与重载决议。</div>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<table class="t-par-begin">
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<td>v</td>
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<td>-</td>
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<td>输入的 simd 或 simd_mask 对象</td>
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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>拥有指定 ABI 的 simd 或 simd_mask 对象。</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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