181ad6265SDimitry Andric // -*- C++ -*- 281ad6265SDimitry Andric //===----------------------------------------------------------------------===// 381ad6265SDimitry Andric // 481ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 581ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 681ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 781ad6265SDimitry Andric // 881ad6265SDimitry Andric //===----------------------------------------------------------------------===// 981ad6265SDimitry Andric 1081ad6265SDimitry Andric #ifndef _LIBCPP___CHRONO_MONTH_H 1181ad6265SDimitry Andric #define _LIBCPP___CHRONO_MONTH_H 1281ad6265SDimitry Andric 1381ad6265SDimitry Andric #include <__chrono/duration.h> 1481ad6265SDimitry Andric #include <__config> 15*bdd1243dSDimitry Andric #include <compare> 1681ad6265SDimitry Andric 1781ad6265SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 1881ad6265SDimitry Andric # pragma GCC system_header 1981ad6265SDimitry Andric #endif 2081ad6265SDimitry Andric 2181ad6265SDimitry Andric #if _LIBCPP_STD_VER > 17 2281ad6265SDimitry Andric 2381ad6265SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 2481ad6265SDimitry Andric 2581ad6265SDimitry Andric namespace chrono 2681ad6265SDimitry Andric { 2781ad6265SDimitry Andric 2881ad6265SDimitry Andric class month { 2981ad6265SDimitry Andric private: 30*bdd1243dSDimitry Andric unsigned char __m_; 3181ad6265SDimitry Andric public: 3281ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI month() = default; 33*bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI explicit inline constexpr month(unsigned __val) noexcept : __m_(static_cast<unsigned char>(__val)) {} 34*bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr month& operator++() noexcept { ++__m_; return *this; } 3581ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr month operator++(int) noexcept { month __tmp = *this; ++(*this); return __tmp; } 36*bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr month& operator--() noexcept { --__m_; return *this; } 3781ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr month operator--(int) noexcept { month __tmp = *this; --(*this); return __tmp; } 3881ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr month& operator+=(const months& __m1) noexcept; 3981ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr month& operator-=(const months& __m1) noexcept; 40*bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator unsigned() const noexcept { return __m_; } 41*bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m_ >= 1 && __m_ <= 12; } 4281ad6265SDimitry Andric }; 4381ad6265SDimitry Andric 4481ad6265SDimitry Andric 4581ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 4681ad6265SDimitry Andric bool operator==(const month& __lhs, const month& __rhs) noexcept 4781ad6265SDimitry Andric { return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } 4881ad6265SDimitry Andric 49*bdd1243dSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr strong_ordering operator<=>(const month& __lhs, const month& __rhs) noexcept { 50*bdd1243dSDimitry Andric return static_cast<unsigned>(__lhs) <=> static_cast<unsigned>(__rhs); 51*bdd1243dSDimitry Andric } 5281ad6265SDimitry Andric 5381ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 5481ad6265SDimitry Andric month operator+ (const month& __lhs, const months& __rhs) noexcept 5581ad6265SDimitry Andric { 5681ad6265SDimitry Andric auto const __mu = static_cast<long long>(static_cast<unsigned>(__lhs)) + (__rhs.count() - 1); 5781ad6265SDimitry Andric auto const __yr = (__mu >= 0 ? __mu : __mu - 11) / 12; 5881ad6265SDimitry Andric return month{static_cast<unsigned>(__mu - __yr * 12 + 1)}; 5981ad6265SDimitry Andric } 6081ad6265SDimitry Andric 6181ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 6281ad6265SDimitry Andric month operator+ (const months& __lhs, const month& __rhs) noexcept 6381ad6265SDimitry Andric { return __rhs + __lhs; } 6481ad6265SDimitry Andric 6581ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 6681ad6265SDimitry Andric month operator- (const month& __lhs, const months& __rhs) noexcept 6781ad6265SDimitry Andric { return __lhs + -__rhs; } 6881ad6265SDimitry Andric 6981ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 7081ad6265SDimitry Andric months operator-(const month& __lhs, const month& __rhs) noexcept 7181ad6265SDimitry Andric { 7281ad6265SDimitry Andric auto const __dm = static_cast<unsigned>(__lhs) - static_cast<unsigned>(__rhs); 7381ad6265SDimitry Andric return months(__dm <= 11 ? __dm : __dm + 12); 7481ad6265SDimitry Andric } 7581ad6265SDimitry Andric 7681ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 7781ad6265SDimitry Andric month& month::operator+=(const months& __dm) noexcept 7881ad6265SDimitry Andric { *this = *this + __dm; return *this; } 7981ad6265SDimitry Andric 8081ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI inline constexpr 8181ad6265SDimitry Andric month& month::operator-=(const months& __dm) noexcept 8281ad6265SDimitry Andric { *this = *this - __dm; return *this; } 8381ad6265SDimitry Andric 8481ad6265SDimitry Andric inline constexpr month January{1}; 8581ad6265SDimitry Andric inline constexpr month February{2}; 8681ad6265SDimitry Andric inline constexpr month March{3}; 8781ad6265SDimitry Andric inline constexpr month April{4}; 8881ad6265SDimitry Andric inline constexpr month May{5}; 8981ad6265SDimitry Andric inline constexpr month June{6}; 9081ad6265SDimitry Andric inline constexpr month July{7}; 9181ad6265SDimitry Andric inline constexpr month August{8}; 9281ad6265SDimitry Andric inline constexpr month September{9}; 9381ad6265SDimitry Andric inline constexpr month October{10}; 9481ad6265SDimitry Andric inline constexpr month November{11}; 9581ad6265SDimitry Andric inline constexpr month December{12}; 9681ad6265SDimitry Andric 9781ad6265SDimitry Andric } // namespace chrono 9881ad6265SDimitry Andric 9981ad6265SDimitry Andric _LIBCPP_END_NAMESPACE_STD 10081ad6265SDimitry Andric 10181ad6265SDimitry Andric #endif // _LIBCPP_STD_VER > 17 10281ad6265SDimitry Andric 10381ad6265SDimitry Andric #endif // _LIBCPP___CHRONO_MONTH_H 104