56 lines
2.6 KiB
HTML
56 lines
2.6 KiB
HTML
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<title>std::experimental::latch::latch</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental_latch_latch 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::latch::</span>latch</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-latch.html">latch</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> latch<span class="br0">(</span> ptrdiff_t value <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(1)</td>
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<td><span class="t-mark-rev t-since-concurrency-ts t-mark-ts">(并发 TS)</span></td>
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<div><span class="mw-geshi cpp source-cpp">latch<span class="br0">(</span> <span class="kw4">const</span> latch <span class="sy3">&</span> <span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></div>
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<td>(2)</td>
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<td><span class="t-mark-rev t-since-concurrency-ts t-mark-ts">(并发 TS)</span></td>
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<div class="t-li1"><span class="t-li">1)</span> 构造 <code>latch</code> 并初始化其内部计数器。</div>
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<div class="t-li1"><span class="t-li">2)</span> 复制构造函数被删除。 <code>latch</code> 不可复制。</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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<tr class="t-par">
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<td>value</td>
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<td>-</td>
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<td>内部计数器的初值；必须为非负</td>
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