84 lines
4.2 KiB
HTML
84 lines
4.2 KiB
HTML
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<title>std::chrono::get_leap_second_info</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_chrono_utc_clock_get_leap_second_info 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::chrono::</span>get_leap_second_info</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-chrono.html">chrono</a>‎ | <a href="cpp-chrono-utc_clock.html">utc clock</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-chrono.html"><chrono></a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Duration <span class="sy1">></span><br /></span>
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<p>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">leap_second_info</span><br /></p>
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get_leap_second_info<span class="br0">(</span> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">utc_time</span><span class="sy1"><</span>Duration<span class="sy1">></span><span class="sy3">&</span> ut <span class="br0">)</span><span class="sy4">;</span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<p>获得一个 <span class="t-lc">std::chrono::leap_second_info</span> ，其 <code>is_leap_second</code> 与 <code>elapsed</code> 分别指示 <code>ut</code> 是否在正闰秒插入中，及 1970 年 1 月 1 日与 <code>ut</code> 之间的闰秒和。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<td>ut</td>
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<td>-</td>
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<td>要检验的 UTC 时间</td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
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<p>如上指定的 <code>leap_second_info</code> 值。</p>
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<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">异常</span></h3>
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<p>可能抛出实现定义的异常。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<div><a href="cpp-chrono-utc_clock-leap_second_info.html"><span class="t-lines"><span>leap_second_info</span></span></a></div>
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<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>闰秒插入信息<br />
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<span class="t-mark">(类)</span></td>
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<div><a href="cpp-chrono-leap_second.html"><span class="t-lines"><span>leap_second</span></span></a></div>
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<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>含有关于插入闰秒的信息<br />
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<span class="t-mark">(类)</span></td>
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