54 lines
2.7 KiB
HTML
54 lines
2.7 KiB
HTML
<!DOCTYPE html>
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<head><meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>std::future<T>::~future</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_thread_future_future 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::future<T>::</span>~future</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-thread.html">thread</a>‎ | <a href="cpp-thread-future.html">future</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<div><span class="mw-geshi cpp source-cpp">~future<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 起)</span></td>
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<p>释放任何共享状态。这表示</p>
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<ul>
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<li>若返回对象或提供方保有到其共享状态的最后引用，则析构共享状态；</li>
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<li>返回对象或提供方放弃到其共享状态的引用；</li>
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</ul>
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<table class="t-rev-begin">
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<tr class="t-rev t-since-cxx14">
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<li>这些动作将不会阻塞至共享状态变为准备，除了若以下为真则它可能阻塞：共享状态以到 std::async 的调用创建，共享状态仍未就绪，且 this 是到共享状态的最后引用。</li>
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</ul>
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</td>
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<td><span class="t-mark-rev t-since-cxx14">(C++14 起)</span></td>
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</body>
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