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<title>std::chrono::operator/ (日历)</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_chrono_operator_slash 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>operator/ <span style="font-size:0.7em; line-height:130%">(日历)</span></h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-chrono.html">chrono</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><code>year_month</code></div>
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</td>
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<td></td>
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<td></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year</span><span class="sy3">&</span> y,<br /></span>
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<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="sy3">&</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month</span><span class="sy4">;</span></div>
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</td>
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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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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year</span><span class="sy3">&</span> y, <span class="kw4">int</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month</span><span class="sy4">;</span></span></div>
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</td>
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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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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl-h">
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<td>
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<div><code>month_day</code></div>
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</td>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month</span><span class="sy3">&</span> m,<br /></span>
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<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">day</span><span class="sy3">&</span> d<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day</span><span class="sy4">;</span></div>
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</td>
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<td>(3)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month</span><span class="sy3">&</span> m, <span class="kw4">int</span> d<span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day</span><span class="sy4">;</span></span></div>
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</td>
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<td>(4)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> m, <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">day</span><span class="sy3">&</span> d<span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day</span><span class="sy4">;</span></span></div>
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</td>
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<td>(5)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">day</span><span class="sy3">&</span> d,<br /></span>
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<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="sy3">&</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day</span><span class="sy4">;</span></div>
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</td>
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<td>(6)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">day</span><span class="sy3">&</span> d, <span class="kw4">int</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day</span><span class="sy4">;</span></span></div>
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</td>
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<td>(7)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl-h">
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<td>
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<div><code>month_day_last</code></div>
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</td>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month</span><span class="sy3">&</span> m,<br /></span>
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<p> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">last_spec</span><span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day_last</span><span class="sy4">;</span></div>
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</td>
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<td>(8)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> m, std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">last_spec</span><span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day_last</span><span class="sy4">;</span></span></div>
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</td>
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<td>(9)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">last_spec</span>,<br /></span>
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<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="sy3">&</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day_last</span><span class="sy4">;</span></div>
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</td>
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<td>(10)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">last_spec</span>, <span class="kw4">int</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day_last</span><span class="sy4">;</span></span></div>
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</td>
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<td>(11)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl-h">
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<td>
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<div><code>month_weekday</code></div>
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</td>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month</span><span class="sy3">&</span> m,<br /></span>
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<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">weekday_indexed</span><span class="sy3">&</span> wdi<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday</span><span class="sy4">;</span></div>
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</td>
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<td>(12)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> m, <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">weekday_indexed</span><span class="sy3">&</span> wdi<span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday</span><span class="sy4">;</span></span></div>
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</td>
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<td>(13)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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||||
<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">weekday_indexed</span><span class="sy3">&</span> wdi,<br /></span>
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<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="sy3">&</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday</span><span class="sy4">;</span></div>
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</td>
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<td>(14)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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||||
<tr class="t-dcl t-since-cxx20">
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<td>
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||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">weekday_indexed</span><span class="sy3">&</span> wdi, <span class="kw4">int</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br />
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday</span><span class="sy4">;</span></span></div>
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</td>
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<td>(15)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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<tr class="t-dcl-h">
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<td>
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<div><code>month_weekday_last</code></div>
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</td>
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<td></td>
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||||
<td></td>
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||||
</tr>
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||||
<tr class="t-dcl t-since-cxx20">
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||||
<td>
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||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month</span><span class="sy3">&</span> m,<br /></span>
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<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">weekday_last</span><span class="sy3">&</span> wdl<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
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<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday_last</span><span class="sy4">;</span></div>
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</td>
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<td>(16)</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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||||
</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> m, <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">weekday_last</span><span class="sy3">&</span> wdl<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday_last</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(17)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">weekday_last</span><span class="sy3">&</span> wdl,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="sy3">&</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday_last</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(18)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">weekday_last</span><span class="sy3">&</span> wdl, <span class="kw4">int</span> m<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday_last</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(19)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-sep">
|
||||
<td></td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-h">
|
||||
<td>
|
||||
<div><code>year_month_day</code></div>
|
||||
</td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year_month</span><span class="sy3">&</span> ym,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">day</span><span class="sy3">&</span> d<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(20)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year_month</span><span class="sy3">&</span> ym, <span class="kw4">int</span> d<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(21)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year</span><span class="sy3">&</span> y,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day</span><span class="sy3">&</span> md<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(22)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> y, <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day</span><span class="sy3">&</span> md<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(23)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_day</span><span class="sy3">&</span> md,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="sy3">&</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(24)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_day</span><span class="sy3">&</span> md, <span class="kw4">int</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(25)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-sep">
|
||||
<td></td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-h">
|
||||
<td>
|
||||
<div><code>year_month_day_last</code></div>
|
||||
</td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year_month</span><span class="sy3">&</span> ym,<br /></span>
|
||||
<p> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">last_spec</span><span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day_last</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(26)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year</span><span class="sy3">&</span> y,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day_last</span><span class="sy3">&</span> mdl<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day_last</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(27)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> y, <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day_last</span><span class="sy3">&</span> mdl<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day_last</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(28)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_day_last</span><span class="sy3">&</span> mdl,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="sy3">&</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day_last</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(29)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_day_last</span><span class="sy3">&</span> mdl, <span class="kw4">int</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_day_last</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(30)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-sep">
|
||||
<td></td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-h">
|
||||
<td>
|
||||
<div><code>year_month_weekday</code></div>
|
||||
</td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year_month</span><span class="sy3">&</span> ym,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">weekday_indexed</span><span class="sy3">&</span> wdi<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(31)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year</span><span class="sy3">&</span> y,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday</span><span class="sy3">&</span> mwd<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(32)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> y, <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday</span><span class="sy3">&</span> mwd<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(33)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_weekday</span><span class="sy3">&</span> mwd,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="sy3">&</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(34)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_weekday</span><span class="sy3">&</span> mwd, <span class="kw4">int</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(35)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-sep">
|
||||
<td></td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-h">
|
||||
<td>
|
||||
<div><code>year_month_weekday_last</code></div>
|
||||
</td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year_month</span><span class="sy3">&</span> ym,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">weekday_last</span><span class="sy3">&</span> wdl<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday_last</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(36)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">year</span><span class="sy3">&</span> y,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday_last</span><span class="sy3">&</span> mwdl<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday_last</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(37)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><span class="br0">(</span><span class="kw4">int</span> y, <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_weekday_last</span><span class="sy3">&</span> mwdl<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday_last</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(38)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_weekday_last</span><span class="sy3">&</span> mwdl,<br /></span>
|
||||
<p> <span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="sy3">&</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br /></p>
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday_last</span><span class="sy4">;</span></div>
|
||||
</td>
|
||||
<td>(39)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl t-since-cxx20">
|
||||
<td>
|
||||
<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw4">auto</span> operator<span class="sy2">/</span><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">month_weekday_last</span><span class="sy3">&</span> mwdl, <span class="kw4">int</span> y<span class="br0">)</span> <span class="kw1">noexcept</span><br />
|
||||
<span class="sy2">-</span><span class="sy1">></span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year_month_weekday_last</span><span class="sy4">;</span></span></div>
|
||||
</td>
|
||||
<td>(40)</td>
|
||||
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
||||
</tr>
|
||||
<tr class="t-dcl-sep">
|
||||
<td></td>
|
||||
<td></td>
|
||||
<td></td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
<p>这些 <code>operator/</code> 为创建格里高利历日期提供约定语法。</p>
|
||||
<p>对于创建完整日期，任何下列三种顺序都可接受：</p>
|
||||
<ul>
|
||||
<li><i><code>year/month/day</code></i></li>
|
||||
<li><i><code>month/day/year</code></i></li>
|
||||
<li><i><code>day/month/year</code></i></li>
|
||||
</ul>
|
||||
<p>每种情况中，能以下列之一替换 <i><code>day</code></i> ：</p>
|
||||
<ul>
|
||||
<li><span class="t-lc">std::chrono::last</span> ，对于月的最后一日；</li>
|
||||
<li><code><i>weekday</i>[<i>i</i>]</code> ，对于月的第 <i>i</i> 个 <i>weekday</i> ；</li>
|
||||
<li><code><i>weekday</i>[<span class="t-lc">std::chrono::last</span>]</code> ，对于该月的最后一个 <i>weekday</i> 。</li>
|
||||
</ul>
|
||||
<p>若单纯的整数的含义相对于其他运算数的类型无歧义，则可接受它：允许 <span class="t-c"><span class="mw-geshi cpp source-cpp">2005y<span class="sy2">/</span><span class="nu0">4</span><span class="sy2">/</span><span class="nu0">5</span></span></span> ，但不允许 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">5</span><span class="sy2">/</span>April<span class="sy2">/</span><span class="nu0">2005</span></span></span> 。</p>
|
||||
<p>能够不以三种顺序之一应用第二个 <code>operator/</code> 创建部分日期类型（ <a href="cpp-chrono-year_month.html"><tt>year_month</tt></a> 、 <a href="cpp-chrono-month_day.html"><tt>month_day</tt></a> 等）。</p>
|
||||
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
|
||||
<div class="t-li1"><span class="t-li">1)</span> <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">year_month</span><span class="br0">(</span>y, m<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">2)</span> <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">year_month</span><span class="br0">(</span>y, std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="br0">(</span>m<span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">3,6)</span> <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">month_day</span><span class="br0">(</span>m, d<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">4)</span> <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">month_day</span><span class="br0">(</span>m, std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">day</span><span class="br0">(</span>d<span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">5,7)</span> <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">month_day</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="br0">(</span>m<span class="br0">)</span>, d<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">8,10)</span> <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">month_day_last</span><span class="br0">(</span>m<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">9,11)</span> <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">month_day_last</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="br0">(</span>m<span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">12,14)</span> <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">month_weekday</span><span class="br0">(</span>m, wdi<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">13,15)</span> <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">month_weekday</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="br0">(</span>m<span class="br0">)</span>, wdi<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">16,18)</span> <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">month_weekday_last</span><span class="br0">(</span>m, wdl<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">17,19)</span> <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">month_weekday_last</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month</span><span class="br0">(</span>m<span class="br0">)</span>, wdl<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">20)</span> <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">year_month_day</span><span class="br0">(</span>ym.<span class="me1">year</span><span class="br0">(</span><span class="br0">)</span>, ym.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, d<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">21)</span> <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">year_month_day</span><span class="br0">(</span>ym.<span class="me1">year</span><span class="br0">(</span><span class="br0">)</span>, ym.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">day</span><span class="br0">(</span>d<span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">22,24)</span> <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">year_month_day</span><span class="br0">(</span>y, md.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, md.<span class="me1">day</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">23,25)</span> <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">year_month_day</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="br0">(</span>y<span class="br0">)</span>, md.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, md.<span class="me1">day</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">26)</span> <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">year_month_day_last</span><span class="br0">(</span>ym.<span class="me1">year</span><span class="br0">(</span><span class="br0">)</span>, std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">month_day_last</span><span class="br0">(</span>ym.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">27,29)</span> <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">year_month_day_last</span><span class="br0">(</span>y, mdl<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">28,30)</span> <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">year_month_day_last</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="br0">(</span>y<span class="br0">)</span>, mdl<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">31)</span> <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">year_month_weekday</span><span class="br0">(</span>ym.<span class="me1">year</span><span class="br0">(</span><span class="br0">)</span>, ym.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, wdi<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">32,34)</span> <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">year_month_weekday</span><span class="br0">(</span>y, mwd.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, mwd.<span class="me1">weekday_indexed</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">33,35)</span> <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">year_month_weekday</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="br0">(</span>y<span class="br0">)</span>, mwd.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, mwd.<span class="me1">weekday_indexed</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">36)</span> <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">year_month_weekday_last</span><span class="br0">(</span>ym.<span class="me1">year</span><span class="br0">(</span><span class="br0">)</span>, ym.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, wdl<span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">37,39)</span> <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">year_month_weekday_last</span><span class="br0">(</span>y, mwdl.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, mwdl.<span class="me1">weekday_last</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<div class="t-li1"><span class="t-li">38,40)</span> <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">year_month_weekday_last</span><span class="br0">(</span>std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">::</span><span class="me2">year</span><span class="br0">(</span>y<span class="br0">)</span>, mwdl.<span class="me1">month</span><span class="br0">(</span><span class="br0">)</span>, mwdl.<span class="me1">weekday_last</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
|
||||
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
|
||||
<div class="t-example">
|
||||
<div class="t-example-live-link"></div>
|
||||
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
||||
<div class="cpp source-cpp">
|
||||
<pre class="de1"><span class="co2">#include <iostream></span>
|
||||
<span class="co2">#include <chrono></span>
|
||||
<span class="kw1">using</span> <span class="kw1">namespace</span> std<span class="sy4">::</span><span class="me2">chrono</span><span class="sy4">;</span>
|
||||
|
||||
<span class="kw4">int</span> main<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"><<</span> <a href="cpp-io-manip-boolalpha.html"><span class="kw1764">std::<span class="me2">boolalpha</span></span></a><span class="sy4">;</span>
|
||||
|
||||
<span class="co1">// 标准提供 2021y 作为 std::chrono::year(2021) 的备选</span>
|
||||
<span class="co1">// 标准提供 15d 作为 std::chrono::day(15) 的备选</span>
|
||||
|
||||
<span class="kw4">constexpr</span> <span class="kw4">auto</span> ym <span class="br0">{</span>year<span class="br0">(</span><span class="nu0">2021</span><span class="br0">)</span><span class="sy2">/</span><span class="nu0">8</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"><<</span> <span class="br0">(</span>ym <span class="sy1">==</span> year_month<span class="br0">(</span>year<span class="br0">(</span><span class="nu0">2021</span><span class="br0">)</span>, August<span class="br0">)</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">' '</span><span class="sy4">;</span>
|
||||
|
||||
<span class="kw4">constexpr</span> <span class="kw4">auto</span> md <span class="br0">{</span><span class="nu0">9</span><span class="sy2">/</span>day<span class="br0">(</span><span class="nu0">15</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"><<</span> <span class="br0">(</span>md <span class="sy1">==</span> month_day<span class="br0">(</span>September, day<span class="br0">(</span><span class="nu0">15</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">' '</span><span class="sy4">;</span>
|
||||
|
||||
<span class="kw4">constexpr</span> <span class="kw4">auto</span> mdl <span class="br0">{</span>October<span class="sy2">/</span>last<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"><<</span> <span class="br0">(</span>mdl <span class="sy1">==</span> month_day_last<span class="br0">(</span>month<span class="br0">(</span><span class="nu0">10</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">' '</span><span class="sy4">;</span>
|
||||
|
||||
<span class="kw4">constexpr</span> <span class="kw4">auto</span> mw <span class="br0">{</span><span class="nu0">11</span><span class="sy2">/</span>Monday<span class="br0">[</span><span class="nu0">3</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"><<</span> <span class="br0">(</span>mw <span class="sy1">==</span> month_weekday<span class="br0">(</span>November, Monday<span class="br0">[</span><span class="nu0">3</span><span class="br0">]</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">' '</span><span class="sy4">;</span>
|
||||
|
||||
<span class="kw4">constexpr</span> <span class="kw4">auto</span> mwdl <span class="br0">{</span>December<span class="sy2">/</span>Sunday<span class="br0">[</span>last<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"><<</span> <span class="br0">(</span>mwdl <span class="sy1">==</span> month_weekday_last<span class="br0">(</span>month<span class="br0">(</span><span class="nu0">12</span><span class="br0">)</span>, weekday_last<span class="br0">(</span>Sunday<span class="br0">)</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">' '</span><span class="sy4">;</span>
|
||||
|
||||
<span class="kw4">constexpr</span> <span class="kw4">auto</span> ymd <span class="br0">{</span>year<span class="br0">(</span><span class="nu0">2021</span><span class="br0">)</span><span class="sy2">/</span>January<span class="sy2">/</span>day<span class="br0">(</span><span class="nu0">23</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"><<</span> <span class="br0">(</span>ymd <span class="sy1">==</span> year_month_day<span class="br0">(</span>2021y, month<span class="br0">(</span>January<span class="br0">)</span>, 23d<span class="br0">)</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
|
||||
<span class="br0">}</span></pre></div>
|
||||
</div>
|
||||
<p>输出：</p>
|
||||
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
||||
<div class="text source-text">
|
||||
<pre class="de1">true true true true true true</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div class="visualClear"></div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user