181ad6265SDimitry Andric // -*- C++ -*- 281ad6265SDimitry Andric //===----------------------------------------------------------------------===// 381ad6265SDimitry Andric // 481ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 581ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 681ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 781ad6265SDimitry Andric // 881ad6265SDimitry Andric //===----------------------------------------------------------------------===// 981ad6265SDimitry Andric 1081ad6265SDimitry Andric #ifndef _LIBCPP___CHRONO_YEAR_H 1181ad6265SDimitry Andric #define _LIBCPP___CHRONO_YEAR_H 1281ad6265SDimitry Andric 1381ad6265SDimitry Andric #include <__chrono/duration.h> 1481ad6265SDimitry Andric #include <__config> 15bdd1243dSDimitry Andric #include <compare> 16753f127fSDimitry Andric #include <limits> 1781ad6265SDimitry Andric 1881ad6265SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 1981ad6265SDimitry Andric # pragma GCC system_header 2081ad6265SDimitry Andric #endif 2181ad6265SDimitry Andric 2281ad6265SDimitry Andric _LIBCPP_PUSH_MACROS 2381ad6265SDimitry Andric #include <__undef_macros> 2481ad6265SDimitry Andric 25*06c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 20 2681ad6265SDimitry Andric 2781ad6265SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 2881ad6265SDimitry Andric 2981ad6265SDimitry Andric namespace chrono 3081ad6265SDimitry Andric { 3181ad6265SDimitry Andric 3281ad6265SDimitry Andric class year { 3381ad6265SDimitry Andric private: 34bdd1243dSDimitry Andric short __y_; 3581ad6265SDimitry Andric public: 36*06c3fb27SDimitry Andric year() = default; 37bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI explicit inline constexpr year(int __val) noexcept : __y_(static_cast<short>(__val)) {} 3881ad6265SDimitry Andric 39bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator++() noexcept { ++__y_; return *this; } 4081ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; } 41bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator--() noexcept { --__y_; return *this; } 4281ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; } 4381ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr year& operator+=(const years& __dy) noexcept; 4481ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr year& operator-=(const years& __dy) noexcept; 4581ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr year operator+() const noexcept { return *this; } 46bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr year operator-() const noexcept { return year{-__y_}; } 4781ad6265SDimitry Andric 48bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr bool is_leap() const noexcept { return __y_ % 4 == 0 && (__y_ % 100 != 0 || __y_ % 400 == 0); } 49bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator int() const noexcept { return __y_; } 5081ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept; 5181ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI static inline constexpr year min() noexcept { return year{-32767}; } 5281ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI static inline constexpr year max() noexcept { return year{ 32767}; } 5381ad6265SDimitry Andric }; 5481ad6265SDimitry Andric 5581ad6265SDimitry Andric 5681ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 5781ad6265SDimitry Andric bool operator==(const year& __lhs, const year& __rhs) noexcept 5881ad6265SDimitry Andric { return static_cast<int>(__lhs) == static_cast<int>(__rhs); } 5981ad6265SDimitry Andric 60bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr strong_ordering operator<=>(const year& __lhs, const year& __rhs) noexcept { 61bdd1243dSDimitry Andric return static_cast<int>(__lhs) <=> static_cast<int>(__rhs); 62bdd1243dSDimitry Andric } 6381ad6265SDimitry Andric 6481ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 6581ad6265SDimitry Andric year operator+ (const year& __lhs, const years& __rhs) noexcept 6681ad6265SDimitry Andric { return year(static_cast<int>(__lhs) + __rhs.count()); } 6781ad6265SDimitry Andric 6881ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 6981ad6265SDimitry Andric year operator+ (const years& __lhs, const year& __rhs) noexcept 7081ad6265SDimitry Andric { return __rhs + __lhs; } 7181ad6265SDimitry Andric 7281ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 7381ad6265SDimitry Andric year operator- (const year& __lhs, const years& __rhs) noexcept 7481ad6265SDimitry Andric { return __lhs + -__rhs; } 7581ad6265SDimitry Andric 7681ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 7781ad6265SDimitry Andric years operator-(const year& __lhs, const year& __rhs) noexcept 7881ad6265SDimitry Andric { return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; } 7981ad6265SDimitry Andric 8081ad6265SDimitry Andric 8181ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 8281ad6265SDimitry Andric year& year::operator+=(const years& __dy) noexcept 8381ad6265SDimitry Andric { *this = *this + __dy; return *this; } 8481ad6265SDimitry Andric 8581ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 8681ad6265SDimitry Andric year& year::operator-=(const years& __dy) noexcept 8781ad6265SDimitry Andric { *this = *this - __dy; return *this; } 8881ad6265SDimitry Andric 89753f127fSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr bool year::ok() const noexcept { 90bdd1243dSDimitry Andric static_assert(static_cast<int>(std::numeric_limits<decltype(__y_)>::max()) == static_cast<int>(max())); 91bdd1243dSDimitry Andric return static_cast<int>(min()) <= __y_; 92753f127fSDimitry Andric } 93753f127fSDimitry Andric 9481ad6265SDimitry Andric } // namespace chrono 9581ad6265SDimitry Andric 9681ad6265SDimitry Andric _LIBCPP_END_NAMESPACE_STD 9781ad6265SDimitry Andric 98*06c3fb27SDimitry Andric #endif // _LIBCPP_STD_VER >= 20 9981ad6265SDimitry Andric 10081ad6265SDimitry Andric _LIBCPP_POP_MACROS 10181ad6265SDimitry Andric 10281ad6265SDimitry Andric #endif // _LIBCPP___CHRONO_YEAR_H 103