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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>suspend_always</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-coroutine.html">coroutine</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-coroutine.html">&lt;coroutine&gt;</a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">struct</span> suspend_always<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><code>suspend_always</code> &#26159;&#31354;&#31867;&#65292;&#33021;&#29992;&#20110;&#25351;&#31034; <a href="cpp-language-coroutines.html#co_await">await &#34920;&#36798;&#24335;</a>&#22987;&#32456;&#26242;&#20572;&#24182;&#19988;&#19981;&#20135;&#29983;&#20540;&#12290;</p>
<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>await_ready</span></span></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>&#25351;&#31034; await &#34920;&#36798;&#24335;&#22987;&#32456;&#26242;&#20572;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><span class="t-lines"><span>await_suspend</span></span></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>&#26080;&#25805;&#20316;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><span class="t-lines"><span>await_resume</span></span></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>&#26080;&#25805;&#20316;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<h2><span class="mw-headline" id="std::suspend_always::await_ready"><span style="font-size:0.7em; line-height:130%">std::suspend_always::</span>await_ready</span></h2>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">bool</span> await_ready<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span> <span class="br0">{</span> <span class="kw1">return</span> <span class="kw2">false</span><span class="sy4">;</span> <span class="br0">}</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>&#22987;&#32456;&#36820;&#22238; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> &#65292;&#25351;&#31034; await &#34920;&#36798;&#24335;&#22987;&#32456;&#26242;&#20572;&#12290;</p>
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<h2><span class="mw-headline" id="std::suspend_always::await_suspend"><span style="font-size:0.7em; line-height:130%">std::suspend_always::</span>await_suspend</span></h2>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">void</span> await_suspend<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span> <span class="br0">{</span><span class="br0">}</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>&#19981;&#20570;&#20219;&#20309;&#20107;&#12290;</p>
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<h2><span class="mw-headline" id="std::suspend_always::await_resume"><span style="font-size:0.7em; line-height:130%">std::suspend_always::</span>await_resume</span></h2>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">void</span> await_resume<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span> <span class="br0">{</span><span class="br0">}</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>&#19981;&#20570;&#20219;&#20309;&#20107;&#12290;&#33509;&#20351;&#29992; <code>suspend_always</code> &#21017; await &#34920;&#36798;&#24335;&#19981;&#20135;&#29983;&#20540;&#12290;</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
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&#21407;&#22240;&#65306;&#26242;&#26080;&#31034;&#20363;</td>
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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-coroutine-suspend_never.html"><span class="t-lines"><span>suspend_never</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>&#25351;&#31034; await &#34920;&#36798;&#24335;&#24212;&#35813;&#20915;&#19981;&#26242;&#20572;<br />
<span class="t-mark">(&#31867;)</span></td>
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