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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___CHRONO_MONTHDAY_H11#define _LIBCPP___CHRONO_MONTHDAY_H12 13#include <__chrono/calendar.h>14#include <__chrono/day.h>15#include <__chrono/month.h>16#include <__compare/ordering.h>17#include <__config>18 19#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)20# pragma GCC system_header21#endif22 23#if _LIBCPP_STD_VER >= 2024 25_LIBCPP_BEGIN_NAMESPACE_STD26 27namespace chrono {28 29class month_day {30private:31 chrono::month __m_;32 chrono::day __d_;33 34public:35 month_day() = default;36 _LIBCPP_HIDE_FROM_ABI constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept37 : __m_{__mval}, __d_{__dval} {}38 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m_; }39 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::day day() const noexcept { return __d_; }40 _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;41};42 43_LIBCPP_HIDE_FROM_ABI inline constexpr bool month_day::ok() const noexcept {44 if (!__m_.ok())45 return false;46 const unsigned __dval = static_cast<unsigned>(__d_);47 if (__dval < 1 || __dval > 31)48 return false;49 if (__dval <= 29)50 return true;51 // Now we've got either 30 or 3152 const unsigned __mval = static_cast<unsigned>(__m_);53 if (__mval == 2)54 return false;55 if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11)56 return __dval == 30;57 return true;58}59 60_LIBCPP_HIDE_FROM_ABI inline constexpr bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept {61 return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day();62}63 64_LIBCPP_HIDE_FROM_ABI inline constexpr strong_ordering65operator<=>(const month_day& __lhs, const month_day& __rhs) noexcept {66 if (auto __c = __lhs.month() <=> __rhs.month(); __c != 0)67 return __c;68 return __lhs.day() <=> __rhs.day();69}70 71_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const month& __lhs, const day& __rhs) noexcept {72 return month_day{__lhs, __rhs};73}74 75_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const day& __lhs, const month& __rhs) noexcept {76 return __rhs / __lhs;77}78 79_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const month& __lhs, int __rhs) noexcept {80 return __lhs / day(__rhs);81}82 83_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(int __lhs, const day& __rhs) noexcept {84 return month(__lhs) / __rhs;85}86 87_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const day& __lhs, int __rhs) noexcept {88 return month(__rhs) / __lhs;89}90 91class month_day_last {92private:93 chrono::month __m_;94 95public:96 _LIBCPP_HIDE_FROM_ABI explicit constexpr month_day_last(const chrono::month& __val) noexcept : __m_{__val} {}97 _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m_; }98 _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m_.ok(); }99};100 101_LIBCPP_HIDE_FROM_ABI inline constexpr bool102operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept {103 return __lhs.month() == __rhs.month();104}105 106_LIBCPP_HIDE_FROM_ABI inline constexpr strong_ordering107operator<=>(const month_day_last& __lhs, const month_day_last& __rhs) noexcept {108 return __lhs.month() <=> __rhs.month();109}110 111_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(const month& __lhs, last_spec) noexcept {112 return month_day_last{__lhs};113}114 115_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(last_spec, const month& __rhs) noexcept {116 return month_day_last{__rhs};117}118 119_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(int __lhs, last_spec) noexcept {120 return month_day_last{month(__lhs)};121}122 123_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(last_spec, int __rhs) noexcept {124 return month_day_last{month(__rhs)};125}126 127} // namespace chrono128 129_LIBCPP_END_NAMESPACE_STD130 131#endif // _LIBCPP_STD_VER >= 20132 133#endif // _LIBCPP___CHRONO_MONTHDAY_H134