| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___CHRONO_YEAR_H |
| #define _LIBCPP___CHRONO_YEAR_H |
| |
| #include <__chrono/duration.h> |
| #include <__config> |
| #include <compare> |
| #include <limits> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_PUSH_MACROS |
| #include <__undef_macros> |
| |
| #if _LIBCPP_STD_VER >= 20 |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace chrono |
| { |
| |
| class year { |
| private: |
| short __y_; |
| public: |
| year() = default; |
| _LIBCPP_HIDE_FROM_ABI explicit inline constexpr year(int __val) noexcept : __y_(static_cast<short>(__val)) {} |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator++() noexcept { ++__y_; return *this; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator--() noexcept { --__y_; return *this; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; } |
| _LIBCPP_HIDE_FROM_ABI constexpr year& operator+=(const years& __dy) noexcept; |
| _LIBCPP_HIDE_FROM_ABI constexpr year& operator-=(const years& __dy) noexcept; |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year operator+() const noexcept { return *this; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year operator-() const noexcept { return year{-__y_}; } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr bool is_leap() const noexcept { return __y_ % 4 == 0 && (__y_ % 100 != 0 || __y_ % 400 == 0); } |
| _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator int() const noexcept { return __y_; } |
| _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept; |
| _LIBCPP_HIDE_FROM_ABI static inline constexpr year min() noexcept { return year{-32767}; } |
| _LIBCPP_HIDE_FROM_ABI static inline constexpr year max() noexcept { return year{ 32767}; } |
| }; |
| |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| bool operator==(const year& __lhs, const year& __rhs) noexcept |
| { return static_cast<int>(__lhs) == static_cast<int>(__rhs); } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr strong_ordering operator<=>(const year& __lhs, const year& __rhs) noexcept { |
| return static_cast<int>(__lhs) <=> static_cast<int>(__rhs); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| year operator+ (const year& __lhs, const years& __rhs) noexcept |
| { return year(static_cast<int>(__lhs) + __rhs.count()); } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| year operator+ (const years& __lhs, const year& __rhs) noexcept |
| { return __rhs + __lhs; } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| year operator- (const year& __lhs, const years& __rhs) noexcept |
| { return __lhs + -__rhs; } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| years operator-(const year& __lhs, const year& __rhs) noexcept |
| { return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; } |
| |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| year& year::operator+=(const years& __dy) noexcept |
| { *this = *this + __dy; return *this; } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| year& year::operator-=(const years& __dy) noexcept |
| { *this = *this - __dy; return *this; } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr bool year::ok() const noexcept { |
| static_assert(static_cast<int>(std::numeric_limits<decltype(__y_)>::max()) == static_cast<int>(max())); |
| return static_cast<int>(min()) <= __y_; |
| } |
| |
| } // namespace chrono |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_STD_VER >= 20 |
| |
| _LIBCPP_POP_MACROS |
| |
| #endif // _LIBCPP___CHRONO_YEAR_H |