forked from OSchip/llvm-project
115 lines
4.1 KiB
C++
115 lines
4.1 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___CHRONO_YEAR_H
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#define _LIBCPP___CHRONO_YEAR_H
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#include <__chrono/duration.h>
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#include <__config>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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#if _LIBCPP_STD_VER > 17
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace chrono
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{
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class year {
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private:
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short __y;
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public:
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_LIBCPP_HIDE_FROM_ABI year() = default;
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_LIBCPP_HIDE_FROM_ABI explicit inline constexpr year(int __val) noexcept : __y(static_cast<short>(__val)) {}
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_LIBCPP_HIDE_FROM_ABI inline constexpr year& operator++() noexcept { ++__y; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year& operator--() noexcept { --__y; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; }
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_LIBCPP_HIDE_FROM_ABI constexpr year& operator+=(const years& __dy) noexcept;
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_LIBCPP_HIDE_FROM_ABI constexpr year& operator-=(const years& __dy) noexcept;
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_LIBCPP_HIDE_FROM_ABI inline constexpr year operator+() const noexcept { return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr year operator-() const noexcept { return year{-__y}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr bool is_leap() const noexcept { return __y % 4 == 0 && (__y % 100 != 0 || __y % 400 == 0); }
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_LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator int() const noexcept { return __y; }
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_LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
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_LIBCPP_HIDE_FROM_ABI static inline constexpr year min() noexcept { return year{-32767}; }
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_LIBCPP_HIDE_FROM_ABI static inline constexpr year max() noexcept { return year{ 32767}; }
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};
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator==(const year& __lhs, const year& __rhs) noexcept
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{ return static_cast<int>(__lhs) == static_cast<int>(__rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator!=(const year& __lhs, const year& __rhs) noexcept
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{ return !(__lhs == __rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator< (const year& __lhs, const year& __rhs) noexcept
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{ return static_cast<int>(__lhs) < static_cast<int>(__rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator> (const year& __lhs, const year& __rhs) noexcept
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{ return __rhs < __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator<=(const year& __lhs, const year& __rhs) noexcept
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{ return !(__rhs < __lhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool operator>=(const year& __lhs, const year& __rhs) noexcept
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{ return !(__lhs < __rhs); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year operator+ (const year& __lhs, const years& __rhs) noexcept
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{ return year(static_cast<int>(__lhs) + __rhs.count()); }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year operator+ (const years& __lhs, const year& __rhs) noexcept
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{ return __rhs + __lhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year operator- (const year& __lhs, const years& __rhs) noexcept
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{ return __lhs + -__rhs; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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years operator-(const year& __lhs, const year& __rhs) noexcept
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{ return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year& year::operator+=(const years& __dy) noexcept
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{ *this = *this + __dy; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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year& year::operator-=(const years& __dy) noexcept
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{ *this = *this - __dy; return *this; }
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_LIBCPP_HIDE_FROM_ABI inline constexpr
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bool year::ok() const noexcept
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{ return static_cast<int>(min()) <= __y && __y <= static_cast<int>(max()); }
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} // namespace chrono
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER > 17
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___CHRONO_YEAR_H
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