1*4bdff4beSrobert // -*- C++ -*- 2*4bdff4beSrobert //===----------------------------------------------------------------------===// 3*4bdff4beSrobert // 4*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 6*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7*4bdff4beSrobert // 8*4bdff4beSrobert //===----------------------------------------------------------------------===// 9*4bdff4beSrobert 10*4bdff4beSrobert #ifndef _LIBCPP___CHRONO_YEAR_H 11*4bdff4beSrobert #define _LIBCPP___CHRONO_YEAR_H 12*4bdff4beSrobert 13*4bdff4beSrobert #include <__chrono/duration.h> 14*4bdff4beSrobert #include <__config> 15*4bdff4beSrobert #include <compare> 16*4bdff4beSrobert #include <limits> 17*4bdff4beSrobert 18*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19*4bdff4beSrobert # pragma GCC system_header 20*4bdff4beSrobert #endif 21*4bdff4beSrobert 22*4bdff4beSrobert _LIBCPP_PUSH_MACROS 23*4bdff4beSrobert #include <__undef_macros> 24*4bdff4beSrobert 25*4bdff4beSrobert #if _LIBCPP_STD_VER > 17 26*4bdff4beSrobert 27*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 28*4bdff4beSrobert 29*4bdff4beSrobert namespace chrono 30*4bdff4beSrobert { 31*4bdff4beSrobert 32*4bdff4beSrobert class year { 33*4bdff4beSrobert private: 34*4bdff4beSrobert short __y_; 35*4bdff4beSrobert public: 36*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI year() = default; year(int __val)37*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI explicit inline constexpr year(int __val) noexcept : __y_(static_cast<short>(__val)) {} 38*4bdff4beSrobert 39*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator++() noexcept { ++__y_; return *this; } 40*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; } 41*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator--() noexcept { --__y_; return *this; } 42*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; } 43*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr year& operator+=(const years& __dy) noexcept; 44*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr year& operator-=(const years& __dy) noexcept; 45*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr year operator+() const noexcept { return *this; } 46*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr year operator-() const noexcept { return year{-__y_}; } 47*4bdff4beSrobert is_leap()48*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr bool is_leap() const noexcept { return __y_ % 4 == 0 && (__y_ % 100 != 0 || __y_ % 400 == 0); } 49*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator int() const noexcept { return __y_; } 50*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept; min()51*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI static inline constexpr year min() noexcept { return year{-32767}; } max()52*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI static inline constexpr year max() noexcept { return year{ 32767}; } 53*4bdff4beSrobert }; 54*4bdff4beSrobert 55*4bdff4beSrobert 56*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr 57*4bdff4beSrobert bool operator==(const year& __lhs, const year& __rhs) noexcept 58*4bdff4beSrobert { return static_cast<int>(__lhs) == static_cast<int>(__rhs); } 59*4bdff4beSrobert 60*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr strong_ordering operator<=>(const year& __lhs, const year& __rhs) noexcept { 61*4bdff4beSrobert return static_cast<int>(__lhs) <=> static_cast<int>(__rhs); 62*4bdff4beSrobert } 63*4bdff4beSrobert 64*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr 65*4bdff4beSrobert year operator+ (const year& __lhs, const years& __rhs) noexcept 66*4bdff4beSrobert { return year(static_cast<int>(__lhs) + __rhs.count()); } 67*4bdff4beSrobert 68*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr 69*4bdff4beSrobert year operator+ (const years& __lhs, const year& __rhs) noexcept 70*4bdff4beSrobert { return __rhs + __lhs; } 71*4bdff4beSrobert 72*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr 73*4bdff4beSrobert year operator- (const year& __lhs, const years& __rhs) noexcept 74*4bdff4beSrobert { return __lhs + -__rhs; } 75*4bdff4beSrobert 76*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr 77*4bdff4beSrobert years operator-(const year& __lhs, const year& __rhs) noexcept 78*4bdff4beSrobert { return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; } 79*4bdff4beSrobert 80*4bdff4beSrobert 81*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr 82*4bdff4beSrobert year& year::operator+=(const years& __dy) noexcept 83*4bdff4beSrobert { *this = *this + __dy; return *this; } 84*4bdff4beSrobert 85*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI inline constexpr 86*4bdff4beSrobert year& year::operator-=(const years& __dy) noexcept 87*4bdff4beSrobert { *this = *this - __dy; return *this; } 88*4bdff4beSrobert ok()89*4bdff4beSrobert_LIBCPP_HIDE_FROM_ABI constexpr bool year::ok() const noexcept { 90*4bdff4beSrobert static_assert(static_cast<int>(std::numeric_limits<decltype(__y_)>::max()) == static_cast<int>(max())); 91*4bdff4beSrobert return static_cast<int>(min()) <= __y_; 92*4bdff4beSrobert } 93*4bdff4beSrobert 94*4bdff4beSrobert } // namespace chrono 95*4bdff4beSrobert 96*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 97*4bdff4beSrobert 98*4bdff4beSrobert #endif // _LIBCPP_STD_VER > 17 99*4bdff4beSrobert 100*4bdff4beSrobert _LIBCPP_POP_MACROS 101*4bdff4beSrobert 102*4bdff4beSrobert #endif // _LIBCPP___CHRONO_YEAR_H 103