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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::latch::</span>try_wait</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-thread.html">thread</a>&lrm; | <a href="cpp-thread-latch.html">latch</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span> try_wait<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<p>&#20165;&#33509;&#20869;&#37096;&#35745;&#25968;&#22120;&#25269;&#36798;&#38646;&#25165;&#36820;&#22238; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> &#12290;&#21363;&#20351;&#20869;&#37096;&#35745;&#25968;&#22120;&#25269;&#36798;&#38646;&#65292;&#27492;&#20989;&#25968;&#20134;&#21487;&#33021;&#20197;&#38750;&#24120;&#20302;&#30340;&#27010;&#29575;&#34394;&#20551;&#22320;&#36820;&#22238; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> &#12290;</p>
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<p>&#20197;&#38750;&#24120;&#20302;&#30340;&#27010;&#29575;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> &#65292;&#21542;&#21017;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp">cnt <span class="sy1">==</span> <span class="nu0">0</span></span></span> &#65292;&#20854;&#20013; <code>cnt</code> &#26159;&#20869;&#37096;&#35745;&#25968;&#22120;&#30340;&#20540;&#12290;</p>
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<p>&#23481;&#35768;&#34394;&#20551;&#32467;&#26524;&#30340;&#21407;&#22240;&#26159;&#20026;&#20801;&#35768;&#23454;&#29616;&#20351;&#29992;&#27604; <span class="t-lc"><a href="cpp-atomic-memory_order.html">std::memory_order_seq_cst</a></span> &#23485;&#26494;&#30340;&#20869;&#23384;&#39034;&#24207;&#12290;</p>
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