95 lines
8.6 KiB
HTML
95 lines
8.6 KiB
HTML
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<title>std::experimental::split</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental_simd_split 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>split</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> <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a>... <span class="me1">Sizes</span>, <span class="kw1">class</span> T, <span class="kw1">class</span> Abi <span class="sy1">></span><br /></span>
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<p><a href="cpp-utility-tuple.html"><span class="kw1098">std::<span class="me2">tuple</span></span></a><span class="sy1"><</span>simd<span class="sy1"><</span>T, simd_abi<span class="sy4">::</span><span class="me2">deduce_t</span><span class="sy1"><</span>T, Sizes<span class="sy1">>></span>...<span class="sy1">></span><br /></p>
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split<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="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> <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a>... <span class="me1">Sizes</span>, <span class="kw1">class</span> T, <span class="kw1">class</span> Abi <span class="sy1">></span><br /></span>
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<p><a href="cpp-utility-tuple.html"><span class="kw1098">std::<span class="me2">tuple</span></span></a><span class="sy1"><</span>simd_mask<span class="sy1"><</span>T, simd_abi<span class="sy4">::</span><span class="me2">deduce_t</span><span class="sy1"><</span>T, Sizes<span class="sy1">>></span>...<span class="sy1">></span><br /></p>
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split<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="sy4">;</span></div>
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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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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1"><</span> <span class="kw1">class</span> V, <span class="kw1">class</span> Abi <span class="sy1">></span><br /></span>
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<p><a href="cpp-container-array.html"><span class="kw1268">std::<span class="me2">array</span></span></a><span class="sy1"><</span>V, simd_size_v<span class="sy1"><</span><span class="kw1">typename</span> V<span class="sy4">::</span><span class="me2">value_type</span>, Abi<span class="sy1">></span> <span class="sy2">/</span> V<span class="sy4">::</span><span class="me2">size</span><span class="br0">(</span><span class="br0">)</span><span class="sy1">></span><br /></p>
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split<span class="br0">(</span> <span class="kw4">const</span> simd<span class="sy1"><</span><span class="kw1">typename</span> V<span class="sy4">::</span><span class="me2">value_type</span>, Abi<span class="sy1">></span><span class="sy3">&</span> v <span class="br0">)</span><span class="sy4">;</span></div>
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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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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1"><</span> <span class="kw1">class</span> V, <span class="kw1">class</span> Abi <span class="sy1">></span><br /></span>
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<p><a href="cpp-container-array.html"><span class="kw1268">std::<span class="me2">array</span></span></a><span class="sy1"><</span>V, simd_size_v<span class="sy1"><</span><span class="kw1">typename</span> V<span class="sy4">::</span><span class="me2">value_type</span>, Abi<span class="sy1">></span> <span class="sy2">/</span> V<span class="sy4">::</span><span class="me2">size</span><span class="br0">(</span><span class="br0">)</span><span class="sy1">></span><br /></p>
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split<span class="br0">(</span> <span class="kw4">const</span> simd_mask<span class="sy1"><</span><span class="kw1">typename</span> V<span class="sy4">::</span><span class="me2">value_type</span>, Abi<span class="sy1">></span><span class="sy3">&</span> v <span class="br0">)</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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<p>分割输入的 simd 或 simd_mask 对象到多个 simd 或 simd_mask 对象中。</p>
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<div class="t-li1"><span class="t-li">1-2)</span> 分割输入对象到潜在地类型不同的对象（例如拥有不同大小的类型）中。这些函数仅若 <span class="t-c"><span class="mw-geshi cpp source-cpp">Sizes...</span></span> 求和为 <span class="t-c"><span class="mw-geshi cpp source-cpp">v.<span class="me1">size</span><span class="br0">(</span><span class="br0">)</span></span></span> 才参与重载决议。</div>
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<div class="t-li1"><span class="t-li">3-4)</span> 分割输入对象到对象的 array 中，这些函数不参与重载决议，除非
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<ul>
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<li>对于为 simd 或 simd_mask 的 v ， array 元素必须分别拥有 simd 或 simd_mask 类型；</li>
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<li><span class="t-c"><span class="mw-geshi cpp source-cpp">simd_size_v<span class="sy1"><</span><span class="kw1">typename</span> V<span class="sy4">::</span><span class="me2">value_type</span>, Abi<span class="sy1">></span></span></span> 是 <span class="t-c"><span class="mw-geshi cpp source-cpp">V<span class="sy4">::</span><span class="me2">size</span><span class="br0">(</span><span class="br0">)</span></span></span> 的整数倍。</li>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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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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<div class="t-li1"><span class="t-li">1-2)</span> 含有分割的 simd 或 simd_mask 对象的 tuple 。</div>
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<div class="t-li1"><span class="t-li">3-4)</span> 含有分割的 simd 或 simd_mask 对象的 array 。</div>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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