69 lines
5.0 KiB
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69 lines
5.0 KiB
HTML
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<title>std::chrono::year_month_day_last::operator sys_days, std::chrono::year_month_day_last::operator local_days</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::chrono::year_month_day_last::</span>operator sys_days, <span style="font-size:0.7em; line-height:130%">std::chrono::year_month_day_last::</span>operator local_days</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-year_month_day_last.html">year month day last</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> operator std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">sys_days</span><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>(1)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> <span class="kw4">constexpr</span> operator std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">local_days</span><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>(2)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<p>转换 <code>*this</code> 为与此 <code>year_month_day_last</code> 表示相同日期的 <span class="t-lc"><a href="cpp-chrono-time_point.html">std::chrono::time_point</a></span> 。这等价于从 <code>year()</code> 、 <code>month()</code> 和 <code>day()</code> 合成 <code>year_month_day</code> ，再将该 <code>year_month_day</code> 转换成目标类型。</p>
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<div class="t-li1"><span class="t-li">1)</span> 等价于 <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">sys_days</span><span class="br0">(</span>year<span class="br0">(</span><span class="br0">)</span><span class="sy2">/</span>month<span class="br0">(</span><span class="br0">)</span><span class="sy2">/</span>day<span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
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<div class="t-li1"><span class="t-li">2)</span> 等价于 <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">local_days</span><span class="br0">(</span>year<span class="br0">(</span><span class="br0">)</span><span class="sy2">/</span>month<span class="br0">(</span><span class="br0">)</span><span class="sy2">/</span>day<span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<td class="mbox-text" style="">本节未完成<br />
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原因：暂无示例</td>
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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-year_month_day-operator_days.html"><span class="t-lines"><span>operator sys_days</span><span>operator local_days</span></span></a></div>
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<td>转换到 <span class="t-lc"><a href="cpp-chrono-time_point.html">std::chrono::time_point</a></span><br />
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<span class="t-mark">(<code>std::chrono::year_month_day</code> 的公开成员函数)</span></td>
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