| // -*- 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_MONTH_H |
| #define _LIBCPP___CHRONO_YEAR_MONTH_H |
| |
| #include <__chrono/duration.h> |
| #include <__chrono/month.h> |
| #include <__chrono/year.h> |
| #include <__config> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| #if _LIBCPP_STD_VER > 17 |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace chrono |
| { |
| |
| class year_month { |
| chrono::year __y; |
| chrono::month __m; |
| public: |
| _LIBCPP_HIDE_FROM_ABI year_month() = default; |
| _LIBCPP_HIDE_FROM_ABI constexpr year_month(const chrono::year& __yval, const chrono::month& __mval) noexcept |
| : __y{__yval}, __m{__mval} {} |
| _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator+=(const months& __dm) noexcept { this->__m += __dm; return *this; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator-=(const months& __dm) noexcept { this->__m -= __dm; return *this; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator+=(const years& __dy) noexcept { this->__y += __dy; return *this; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator-=(const years& __dy) noexcept { this->__y -= __dy; return *this; } |
| _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok(); } |
| }; |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| year_month operator/(const year& __y, const month& __m) noexcept { return year_month{__y, __m}; } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| year_month operator/(const year& __y, int __m) noexcept { return year_month{__y, month(__m)}; } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| bool operator==(const year_month& __lhs, const year_month& __rhs) noexcept |
| { return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month(); } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| bool operator!=(const year_month& __lhs, const year_month& __rhs) noexcept |
| { return !(__lhs == __rhs); } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| bool operator< (const year_month& __lhs, const year_month& __rhs) noexcept |
| { return __lhs.year() != __rhs.year() ? __lhs.year() < __rhs.year() : __lhs.month() < __rhs.month(); } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| bool operator> (const year_month& __lhs, const year_month& __rhs) noexcept |
| { return __rhs < __lhs; } |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| bool operator<=(const year_month& __lhs, const year_month& __rhs) noexcept |
| { return !(__rhs < __lhs);} |
| |
| _LIBCPP_HIDE_FROM_ABI inline constexpr |
| bool operator>=(const year_month& __lhs, const year_month& __rhs) noexcept |
| { return !(__lhs < __rhs); } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| year_month operator+(const year_month& __lhs, const months& __rhs) noexcept |
| { |
| int __dmi = static_cast<int>(static_cast<unsigned>(__lhs.month())) - 1 + __rhs.count(); |
| const int __dy = (__dmi >= 0 ? __dmi : __dmi-11) / 12; |
| __dmi = __dmi - __dy * 12 + 1; |
| return (__lhs.year() + years(__dy)) / month(static_cast<unsigned>(__dmi)); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| year_month operator+(const months& __lhs, const year_month& __rhs) noexcept |
| { return __rhs + __lhs; } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| year_month operator+(const year_month& __lhs, const years& __rhs) noexcept |
| { return (__lhs.year() + __rhs) / __lhs.month(); } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| year_month operator+(const years& __lhs, const year_month& __rhs) noexcept |
| { return __rhs + __lhs; } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| months operator-(const year_month& __lhs, const year_month& __rhs) noexcept |
| { return (__lhs.year() - __rhs.year()) + months(static_cast<unsigned>(__lhs.month()) - static_cast<unsigned>(__rhs.month())); } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| year_month operator-(const year_month& __lhs, const months& __rhs) noexcept |
| { return __lhs + -__rhs; } |
| |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| year_month operator-(const year_month& __lhs, const years& __rhs) noexcept |
| { return __lhs + -__rhs; } |
| |
| } // namespace chrono |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_STD_VER > 17 |
| |
| #endif // _LIBCPP___CHRONO_YEAR_MONTH_H |