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133 lines
4.1 KiB
C++
133 lines
4.1 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___CHRONO_MONTHDAY_H
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#define _LIBCPP___CHRONO_MONTHDAY_H
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#include <__chrono/calendar.h>
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#include <__chrono/day.h>
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#include <__chrono/month.h>
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#include <__config>
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#include <compare>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace chrono {
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class month_day {
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private:
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chrono::month __m_;
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chrono::day __d_;
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public:
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month_day() = default;
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_LIBCPP_HIDE_FROM_ABI constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept
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: __m_{__mval}, __d_{__dval} {}
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m_; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::day day() const noexcept { return __d_; }
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_LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
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};
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_LIBCPP_HIDE_FROM_ABI inline constexpr bool month_day::ok() const noexcept {
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if (!__m_.ok())
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return false;
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const unsigned __dval = static_cast<unsigned>(__d_);
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if (__dval < 1 || __dval > 31)
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return false;
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if (__dval <= 29)
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return true;
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// Now we've got either 30 or 31
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const unsigned __mval = static_cast<unsigned>(__m_);
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if (__mval == 2)
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return false;
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if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11)
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return __dval == 30;
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return true;
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept {
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return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day();
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr strong_ordering
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operator<=>(const month_day& __lhs, const month_day& __rhs) noexcept {
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if (auto __c = __lhs.month() <=> __rhs.month(); __c != 0)
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return __c;
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return __lhs.day() <=> __rhs.day();
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const month& __lhs, const day& __rhs) noexcept {
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return month_day{__lhs, __rhs};
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const day& __lhs, const month& __rhs) noexcept {
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return __rhs / __lhs;
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const month& __lhs, int __rhs) noexcept {
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return __lhs / day(__rhs);
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(int __lhs, const day& __rhs) noexcept {
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return month(__lhs) / __rhs;
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day operator/(const day& __lhs, int __rhs) noexcept {
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return month(__rhs) / __lhs;
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}
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class month_day_last {
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private:
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chrono::month __m_;
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public:
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_LIBCPP_HIDE_FROM_ABI explicit constexpr month_day_last(const chrono::month& __val) noexcept : __m_{__val} {}
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_LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m_; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m_.ok(); }
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};
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_LIBCPP_HIDE_FROM_ABI inline constexpr bool
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operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept {
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return __lhs.month() == __rhs.month();
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr strong_ordering
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operator<=>(const month_day_last& __lhs, const month_day_last& __rhs) noexcept {
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return __lhs.month() <=> __rhs.month();
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(const month& __lhs, last_spec) noexcept {
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return month_day_last{__lhs};
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(last_spec, const month& __rhs) noexcept {
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return month_day_last{__rhs};
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(int __lhs, last_spec) noexcept {
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return month_day_last{month(__lhs)};
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}
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_LIBCPP_HIDE_FROM_ABI inline constexpr month_day_last operator/(last_spec, int __rhs) noexcept {
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return month_day_last{month(__rhs)};
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}
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} // namespace chrono
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 20
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#endif // _LIBCPP___CHRONO_MONTHDAY_H
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