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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::experimental::</span>is_simd, <span style="font-size:0.7em; line-height:130%">std::experimental::</span>is_simd_mask</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-experimental.html">experimental</a>&lrm; | <a href="cpp-experimental-simd.html">simd</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/simd&amp;action=edit&amp;redlink=1" class="new" title="cpp/header/experimental/simd&#65288;&#39029;&#38754;&#19981;&#23384;&#22312;&#65289;">&lt;experimental/simd&gt;</a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T <span class="sy1">&gt;</span><br />
<span class="kw1">struct</span> is_simd<span class="sy4">;</span></span></div>
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<td>(1)</td>
<td><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(&#24182;&#34892; TS v2)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T <span class="sy1">&gt;</span><br />
<span class="kw1">struct</span> is_simd_mask<span class="sy4">;</span></span></div>
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<td>(2)</td>
<td><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(&#24182;&#34892; TS v2)</span></td>
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<div class="t-li1"><span class="t-li">1)</span> &#33509; <code>T</code> &#20026; <a href="cpp-experimental-simd-simd.html"><code>simd</code></a> &#31867;&#27169;&#26495;&#30340;&#29305;&#21270;&#65292;&#21017;&#25552;&#20379;&#31561;&#20110; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> &#30340;&#25104;&#21592;&#24120;&#37327; <code>value</code> &#12290;&#23545;&#20110;&#20219;&#20309;&#20854;&#20182;&#31867;&#22411;&#65292; <code>value</code> &#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> &#12290;</div>
<div class="t-li1"><span class="t-li">2)</span> &#33509; <code>T</code> &#26159; <a href="cpp-experimental-simd-simd_mask.html"><code>simd_mask</code></a> &#31867;&#27169;&#26495;&#30340;&#29305;&#21270;&#65292;&#21017;&#25552;&#20379;&#31561;&#20110; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> &#30340;&#25104;&#21592;&#24120;&#37327; <code>value</code> &#12290;&#23545;&#20110;&#20219;&#20309;&#20854;&#20182;&#31867;&#22411;&#65292; <code>value</code> &#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> &#12290;</div>
<h3><span class="mw-headline" id=".E6.A8.A1.E6.9D.BF.E5.BD.A2.E5.8F.82">&#27169;&#26495;&#24418;&#21442;</span></h3>
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<td>T</td>
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<td>&#35201;&#26816;&#26597;&#30340;&#31867;&#22411;</td>
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<h3><span class="mw-headline" id=".E8.BE.85.E5.8A.A9.E5.8F.98.E9.87.8F.E6.A8.A1.E6.9D.BF">&#36741;&#21161;&#21464;&#37327;&#27169;&#26495;</span></h3>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T <span class="sy1">&gt;</span><br />
<span class="kw1">inline</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_simd_v <span class="sy1">=</span> is_simd<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value</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">(&#24182;&#34892; TS v2)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T <span class="sy1">&gt;</span><br />
<span class="kw1">inline</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> is_simd_mask_v <span class="sy1">=</span> is_simd_mask<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(&#24182;&#34892; TS v2)</span></td>
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<h2><span class="mw-headline" id=".E7.BB.A7.E6.89.BF.E8.87.AA_std::integral_constant">&#32487;&#25215;&#33258; <a href="cpp-types-integral_constant.html"><span style="font-size:0.7em; line-height:130%">std::</span>integral_constant</a></span></h2>
<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.B8.B8.E9.87.8F">&#25104;&#21592;&#24120;&#37327;</span></h3>
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<div><span class="t-lines"><span>value</span></span></div>
<div><span class="t-lines"><span><span class="t-cmark">[&#38745;&#24577;]</span></span></span></div>
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<td>&#33509; <code>T</code> &#20026; <a href="cpp-experimental-simd-simd.html"><code>simd</code></a>/<a href="cpp-experimental-simd-simd_mask.html"><code>simd_mask</code></a> &#31867;&#22411;&#21017;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> &#65292;&#21542;&#21017;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span><br />
<span class="t-mark">(&#20844;&#24320;&#38745;&#24577;&#25104;&#21592;&#24120;&#37327;)</span></td>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">&#25104;&#21592;&#20989;&#25968;</span></h3>
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<div><span class="t-lines"><span>operator bool</span></span></div>
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<td>&#36716;&#25442;&#23545;&#35937;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span></span></span> &#65292;&#36820;&#22238; <code>value</code><br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><span class="t-lines"><span>operator()</span></span></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div>
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<td>&#36820;&#22238; <code>value</code><br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B">&#25104;&#21592;&#31867;&#22411;</span></h3>
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<td>&#31867;&#22411;</td>
<td>&#23450;&#20041;</td>
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<td><code>value_type</code></td>
<td><code>bool</code></td>
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<td><code>type</code></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-types-integral_constant.html"><span class="kw647">std::<span class="me2">integral_constant</span></span></a><span class="sy1">&lt;</span><span class="kw4">bool</span>, value<span class="sy1">&gt;</span></span></span></td>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
<div class="t-example">
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<div class="cpp source-cpp">
<pre class="de1"><span class="co2">#include &lt;experimental/simd&gt;</span>
<span class="co2">#include &lt;iostream&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="kw1">namespace</span> stdx <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">experimental</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a>
<span class="sy1">&lt;&lt;</span> <a href="cpp-io-manip-boolalpha.html"><span class="kw1764">std::<span class="me2">boolalpha</span></span></a>
<span class="sy1">&lt;&lt;</span> stdx<span class="sy4">::</span><span class="me2">is_simd_v</span><span class="sy1">&lt;</span>stdx<span class="sy4">::</span><span class="me2">simd</span><span class="sy1">&lt;</span><span class="kw4">float</span><span class="sy1">&gt;&gt;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="sy1">&lt;&lt;</span> stdx<span class="sy4">::</span><span class="me2">is_simd_v</span><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="sy1">&lt;&lt;</span> stdx<span class="sy4">::</span><span class="me2">is_simd_mask_v</span><span class="sy1">&lt;</span>stdx<span class="sy4">::</span><span class="me2">simd_mask</span><span class="sy1">&lt;</span><span class="kw4">float</span><span class="sy1">&gt;&gt;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="sy1">&lt;&lt;</span> stdx<span class="sy4">::</span><span class="me2">is_simd_mask_v</span><span class="sy1">&lt;</span><span class="kw4">int</span><span class="sy1">&gt;</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
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<p>&#36755;&#20986;&#65306;</p>
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<div class="text source-text">
<pre class="de1">true
false
true
false</pre></div>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">&#21442;&#38405;</span></h3>
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<div><a href="cpp-experimental-simd-is_simd_mask.html" class="mw-redirect"><span class="t-lines"><span>is_simd_mask</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-parallelism-ts-2 t-mark-ts">(&#24182;&#34892; TS v2)</span></span></span></div>
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<td>&#26816;&#26597;&#31867;&#22411;&#26159;&#21542;&#20026; <code>simd_mask</code> &#31867;&#22411;<br />
<span class="t-mark">(&#31867;&#27169;&#26495;)</span></td>
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