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// -*- 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
|
