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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_DAY_H11#define _LIBCPP___CHRONO_DAY_H12 13#include <__chrono/duration.h>14#include <__compare/ordering.h>15#include <__config>16 17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)18# pragma GCC system_header19#endif20 21#if _LIBCPP_STD_VER >= 2022 23_LIBCPP_BEGIN_NAMESPACE_STD24 25namespace chrono {26 27class day {28private:29 unsigned char __d_;30 31public:32 day() = default;33 _LIBCPP_HIDE_FROM_ABI explicit inline constexpr day(unsigned __val) noexcept34 : __d_(static_cast<unsigned char>(__val)) {}35 _LIBCPP_HIDE_FROM_ABI inline constexpr day& operator++() noexcept {36 ++__d_;37 return *this;38 }39 _LIBCPP_HIDE_FROM_ABI inline constexpr day operator++(int) noexcept {40 day __tmp = *this;41 ++(*this);42 return __tmp;43 }44 _LIBCPP_HIDE_FROM_ABI inline constexpr day& operator--() noexcept {45 --__d_;46 return *this;47 }48 _LIBCPP_HIDE_FROM_ABI inline constexpr day operator--(int) noexcept {49 day __tmp = *this;50 --(*this);51 return __tmp;52 }53 _LIBCPP_HIDE_FROM_ABI constexpr day& operator+=(const days& __dd) noexcept;54 _LIBCPP_HIDE_FROM_ABI constexpr day& operator-=(const days& __dd) noexcept;55 _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator unsigned() const noexcept { return __d_; }56 _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __d_ >= 1 && __d_ <= 31; }57};58 59_LIBCPP_HIDE_FROM_ABI inline constexpr bool operator==(const day& __lhs, const day& __rhs) noexcept {60 return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs);61}62 63_LIBCPP_HIDE_FROM_ABI inline constexpr strong_ordering operator<=>(const day& __lhs, const day& __rhs) noexcept {64 return static_cast<unsigned>(__lhs) <=> static_cast<unsigned>(__rhs);65}66 67_LIBCPP_HIDE_FROM_ABI inline constexpr day operator+(const day& __lhs, const days& __rhs) noexcept {68 return day(static_cast<unsigned>(__lhs) + __rhs.count());69}70 71_LIBCPP_HIDE_FROM_ABI inline constexpr day operator+(const days& __lhs, const day& __rhs) noexcept {72 return __rhs + __lhs;73}74 75_LIBCPP_HIDE_FROM_ABI inline constexpr day operator-(const day& __lhs, const days& __rhs) noexcept {76 return __lhs + -__rhs;77}78 79_LIBCPP_HIDE_FROM_ABI inline constexpr days operator-(const day& __lhs, const day& __rhs) noexcept {80 return days(static_cast<int>(static_cast<unsigned>(__lhs)) - static_cast<int>(static_cast<unsigned>(__rhs)));81}82 83_LIBCPP_HIDE_FROM_ABI inline constexpr day& day::operator+=(const days& __dd) noexcept {84 *this = *this + __dd;85 return *this;86}87 88_LIBCPP_HIDE_FROM_ABI inline constexpr day& day::operator-=(const days& __dd) noexcept {89 *this = *this - __dd;90 return *this;91}92 93} // namespace chrono94 95_LIBCPP_END_NAMESPACE_STD96 97#endif // _LIBCPP_STD_VER >= 2098 99#endif // _LIBCPP___CHRONO_DAY_H100