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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::thread::</span>detach</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-thread.html">thread</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">void</span> detach<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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<p>&#20174; thread &#23545;&#35937;&#20998;&#31163;&#25191;&#34892;&#32447;&#31243;&#65292;&#20801;&#35768;&#25191;&#34892;&#29420;&#31435;&#22320;&#25345;&#32493;&#12290;&#19968;&#26086;&#35813;&#32447;&#31243;&#36864;&#20986;&#65292;&#21017;&#37322;&#25918;&#20219;&#20309;&#20998;&#37197;&#30340;&#36164;&#28304;&#12290;</p>
<p>&#35843;&#29992; <code>detach</code> &#21518; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span> &#19981;&#20877;&#21344;&#26377;&#20219;&#20309;&#32447;&#31243;&#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<p>&#65288;&#26080;&#65289;</p>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p>&#65288;&#26080;&#65289;</p>
<h3><span class="mw-headline" id=".E5.90.8E.E6.9D.A1.E4.BB.B6">&#21518;&#26465;&#20214;</span></h3>
<p><span class="t-lc"><a href="cpp-thread-thread-joinable.html">joinable</a></span> &#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span></p>
<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">&#24322;&#24120;</span></h3>
<p>&#33509; <span class="t-c"><span class="mw-geshi cpp source-cpp">joinable<span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> <span class="kw2">false</span></span></span> &#25110;&#20986;&#29616;&#20219;&#20309;&#38169;&#35823;&#21017;&#20026; <span class="t-lc"><a href="cpp-error-system_error.html">std::system_error</a></span> &#12290;</p>
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
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<pre class="de1"><span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;chrono&gt;</span>
<span class="co2">#include &lt;thread&gt;</span>
<span class="kw4">void</span> independentThread<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;Starting concurrent thread.<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<a href="cpp-thread-sleep_for.html"><span class="kw2149">std::<span class="me2">this_thread</span><span class="sy4">::</span><span class="me2">sleep_for</span></span></a><span class="br0">(</span><a href="cpp-chrono-duration.html"><span class="kw997">std::<span class="me2">chrono</span><span class="sy4">::</span><span class="me2">seconds</span></span></a><span class="br0">(</span><span class="nu0">2</span><span class="br0">)</span><span class="br0">)</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> <span class="st0">&quot;Exiting concurrent thread.<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="kw4">void</span> threadCaller<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;Starting thread caller.<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<a href="cpp-thread-thread.html"><span class="kw2146">std::<span class="me2">thread</span></span></a> t<span class="br0">(</span>independentThread<span class="br0">)</span><span class="sy4">;</span>
t.<span class="me1">detach</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-thread-sleep_for.html"><span class="kw2149">std::<span class="me2">this_thread</span><span class="sy4">::</span><span class="me2">sleep_for</span></span></a><span class="br0">(</span><a href="cpp-chrono-duration.html"><span class="kw997">std::<span class="me2">chrono</span><span class="sy4">::</span><span class="me2">seconds</span></span></a><span class="br0">(</span><span class="nu0">1</span><span class="br0">)</span><span class="br0">)</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> <span class="st0">&quot;Exiting thread caller.<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
threadCaller<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-thread-sleep_for.html"><span class="kw2149">std::<span class="me2">this_thread</span><span class="sy4">::</span><span class="me2">sleep_for</span></span></a><span class="br0">(</span><a href="cpp-chrono-duration.html"><span class="kw997">std::<span class="me2">chrono</span><span class="sy4">::</span><span class="me2">seconds</span></span></a><span class="br0">(</span><span class="nu0">5</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
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<p>&#21487;&#33021;&#30340;&#36755;&#20986;&#65306;</p>
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<pre class="de1">Starting thread caller.
Starting concurrent thread.
Exiting thread caller.
Exiting concurrent thread.</pre></div>
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<h3><span class="mw-headline" id=".E5.BC.95.E7.94.A8">&#24341;&#29992;</span></h3>
<div class="t-ref-std-c++20">
<ul>
<li>C++20 &#26631;&#20934;&#65288;ISO/IEC 14882:2020&#65289;&#65306;</li>
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<li>32.4.2.5 Members [thread.thread.member]</li>
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<div class="t-ref-std-c++17">
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<li>C++17 &#26631;&#20934;&#65288;ISO/IEC 14882:2017&#65289;&#65306;</li>
</ul>
<dl>
<dd>
<ul>
<li>33.3.2.5 thread members [thread.thread.member]</li>
</ul>
</dd>
</dl>
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<div class="t-ref-std-c++14">
<ul>
<li>C++14 &#26631;&#20934;&#65288;ISO/IEC 14882:2014&#65289;&#65306;</li>
</ul>
<dl>
<dd>
<ul>
<li>30.3.1.5 thread members [thread.thread.member]</li>
</ul>
</dd>
</dl>
</div>
<div class="t-ref-std-c++11">
<ul>
<li>C++11 &#26631;&#20934;&#65288;ISO/IEC 14882:2011&#65289;&#65306;</li>
</ul>
<dl>
<dd>
<ul>
<li>30.3.1.5 thread members [thread.thread.member]</li>
</ul>
</dd>
</dl>
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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-thread-thread-join.html"><span class="t-lines"><span>join</span></span></a></div>
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<td>&#31561;&#24453;&#32447;&#31243;&#23436;&#25104;&#20854;&#25191;&#34892;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><a href="cpp-thread-thread-joinable.html"><span class="t-lines"><span>joinable</span></span></a></div>
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<td>&#26816;&#26597;&#32447;&#31243;&#26159;&#21542;&#21487;&#21512;&#24182;&#65292;&#21363;&#28508;&#22312;&#22320;&#36816;&#34892;&#20110;&#24179;&#34892;&#29615;&#22659;&#20013;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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