diff options
Diffstat (limited to 'clang-r353983e/include/c++/v1/chrono')
| -rw-r--r-- | clang-r353983e/include/c++/v1/chrono | 2864 |
1 files changed, 2864 insertions, 0 deletions
diff --git a/clang-r353983e/include/c++/v1/chrono b/clang-r353983e/include/c++/v1/chrono new file mode 100644 index 00000000..a003751b --- /dev/null +++ b/clang-r353983e/include/c++/v1/chrono @@ -0,0 +1,2864 @@ +// -*- C++ -*- +//===---------------------------- chrono ----------------------------------===// +// +// 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 +#define _LIBCPP_CHRONO + +/* + chrono synopsis + +namespace std +{ +namespace chrono +{ + +template <class ToDuration, class Rep, class Period> +constexpr +ToDuration +duration_cast(const duration<Rep, Period>& fd); + +template <class Rep> struct treat_as_floating_point : is_floating_point<Rep> {}; + +template <class Rep> inline constexpr bool treat_as_floating_point_v + = treat_as_floating_point<Rep>::value; // C++17 + +template <class Rep> +struct duration_values +{ +public: + static constexpr Rep zero(); // noexcept in C++20 + static constexpr Rep max(); // noexcept in C++20 + static constexpr Rep min(); // noexcept in C++20 +}; + +// duration + +template <class Rep, class Period = ratio<1>> +class duration +{ + static_assert(!__is_duration<Rep>::value, "A duration representation can not be a duration"); + static_assert(__is_ratio<Period>::value, "Second template parameter of duration must be a std::ratio"); + static_assert(Period::num > 0, "duration period must be positive"); +public: + typedef Rep rep; + typedef typename _Period::type period; + + constexpr duration() = default; + template <class Rep2> + constexpr explicit duration(const Rep2& r, + typename enable_if + < + is_convertible<Rep2, rep>::value && + (treat_as_floating_point<rep>::value || + !treat_as_floating_point<rep>::value && !treat_as_floating_point<Rep2>::value) + >::type* = 0); + + // conversions + template <class Rep2, class Period2> + constexpr duration(const duration<Rep2, Period2>& d, + typename enable_if + < + treat_as_floating_point<rep>::value || + ratio_divide<Period2, period>::type::den == 1 + >::type* = 0); + + // observer + + constexpr rep count() const; + + // arithmetic + + constexpr common_type<duration>::type operator+() const; + constexpr common_type<duration>::type operator-() const; + constexpr duration& operator++(); // constexpr in C++17 + constexpr duration operator++(int); // constexpr in C++17 + constexpr duration& operator--(); // constexpr in C++17 + constexpr duration operator--(int); // constexpr in C++17 + + constexpr duration& operator+=(const duration& d); // constexpr in C++17 + constexpr duration& operator-=(const duration& d); // constexpr in C++17 + + duration& operator*=(const rep& rhs); // constexpr in C++17 + duration& operator/=(const rep& rhs); // constexpr in C++17 + duration& operator%=(const rep& rhs); // constexpr in C++17 + duration& operator%=(const duration& rhs); // constexpr in C++17 + + // special values + + static constexpr duration zero(); // noexcept in C++20 + static constexpr duration min(); // noexcept in C++20 + static constexpr duration max(); // noexcept in C++20 +}; + +typedef duration<long long, nano> nanoseconds; +typedef duration<long long, micro> microseconds; +typedef duration<long long, milli> milliseconds; +typedef duration<long long > seconds; +typedef duration< long, ratio< 60> > minutes; +typedef duration< long, ratio<3600> > hours; + +template <class Clock, class Duration = typename Clock::duration> +class time_point +{ +public: + typedef Clock clock; + typedef Duration duration; + typedef typename duration::rep rep; + typedef typename duration::period period; +private: + duration d_; // exposition only + +public: + time_point(); // has value "epoch" // constexpr in C++14 + explicit time_point(const duration& d); // same as time_point() + d // constexpr in C++14 + + // conversions + template <class Duration2> + time_point(const time_point<clock, Duration2>& t); // constexpr in C++14 + + // observer + + duration time_since_epoch() const; // constexpr in C++14 + + // arithmetic + + time_point& operator+=(const duration& d); // constexpr in C++17 + time_point& operator-=(const duration& d); // constexpr in C++17 + + // special values + + static constexpr time_point min(); // noexcept in C++20 + static constexpr time_point max(); // noexcept in C++20 +}; + +} // chrono + +// common_type traits +template <class Rep1, class Period1, class Rep2, class Period2> + struct common_type<chrono::duration<Rep1, Period1>, chrono::duration<Rep2, Period2>>; + +template <class Clock, class Duration1, class Duration2> + struct common_type<chrono::time_point<Clock, Duration1>, chrono::time_point<Clock, Duration2>>; + +namespace chrono { + + +template<class T> struct is_clock; // C++20 +template<class T> inline constexpr bool is_clock_v = is_clock<T>::value; // C++20 + + +// duration arithmetic +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type + operator+(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type + operator-(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period, class Rep2> + constexpr + duration<typename common_type<Rep1, Rep2>::type, Period> + operator*(const duration<Rep1, Period>& d, const Rep2& s); +template <class Rep1, class Period, class Rep2> + constexpr + duration<typename common_type<Rep1, Rep2>::type, Period> + operator*(const Rep1& s, const duration<Rep2, Period>& d); +template <class Rep1, class Period, class Rep2> + constexpr + duration<typename common_type<Rep1, Rep2>::type, Period> + operator/(const duration<Rep1, Period>& d, const Rep2& s); +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + typename common_type<Rep1, Rep2>::type + operator/(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); + +// duration comparisons +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + bool operator==(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + bool operator!=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + bool operator< (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + bool operator<=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + bool operator> (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period1, class Rep2, class Period2> + constexpr + bool operator>=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); + +// duration_cast +template <class ToDuration, class Rep, class Period> + ToDuration duration_cast(const duration<Rep, Period>& d); + +template <class ToDuration, class Rep, class Period> + constexpr ToDuration floor(const duration<Rep, Period>& d); // C++17 +template <class ToDuration, class Rep, class Period> + constexpr ToDuration ceil(const duration<Rep, Period>& d); // C++17 +template <class ToDuration, class Rep, class Period> + constexpr ToDuration round(const duration<Rep, Period>& d); // C++17 + +// duration I/O is elsewhere + +// time_point arithmetic (all constexpr in C++14) +template <class Clock, class Duration1, class Rep2, class Period2> + time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type> + operator+(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Rep1, class Period1, class Clock, class Duration2> + time_point<Clock, typename common_type<duration<Rep1, Period1>, Duration2>::type> + operator+(const duration<Rep1, Period1>& lhs, const time_point<Clock, Duration2>& rhs); +template <class Clock, class Duration1, class Rep2, class Period2> + time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type> + operator-(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs); +template <class Clock, class Duration1, class Duration2> + typename common_type<Duration1, Duration2>::type + operator-(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); + +// time_point comparisons (all constexpr in C++14) +template <class Clock, class Duration1, class Duration2> + bool operator==(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); +template <class Clock, class Duration1, class Duration2> + bool operator!=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); +template <class Clock, class Duration1, class Duration2> + bool operator< (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); +template <class Clock, class Duration1, class Duration2> + bool operator<=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); +template <class Clock, class Duration1, class Duration2> + bool operator> (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); +template <class Clock, class Duration1, class Duration2> + bool operator>=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); + +// time_point_cast (constexpr in C++14) + +template <class ToDuration, class Clock, class Duration> + time_point<Clock, ToDuration> time_point_cast(const time_point<Clock, Duration>& t); + +template <class ToDuration, class Clock, class Duration> + constexpr time_point<Clock, ToDuration> + floor(const time_point<Clock, Duration>& tp); // C++17 + +template <class ToDuration, class Clock, class Duration> + constexpr time_point<Clock, ToDuration> + ceil(const time_point<Clock, Duration>& tp); // C++17 + +template <class ToDuration, class Clock, class Duration> + constexpr time_point<Clock, ToDuration> + round(const time_point<Clock, Duration>& tp); // C++17 + +template <class Rep, class Period> + constexpr duration<Rep, Period> abs(duration<Rep, Period> d); // C++17 + +// Clocks + +class system_clock +{ +public: + typedef microseconds duration; + typedef duration::rep rep; + typedef duration::period period; + typedef chrono::time_point<system_clock> time_point; + static const bool is_steady = false; // constexpr in C++14 + + static time_point now() noexcept; + static time_t to_time_t (const time_point& __t) noexcept; + static time_point from_time_t(time_t __t) noexcept; +}; + +template <class Duration> + using sys_time = time_point<system_clock, Duration>; // C++20 +using sys_seconds = sys_time<seconds>; // C++20 +using sys_days = sys_time<days>; // C++20 + +class utc_clock; // C++20 + +template <class Duration> + using utc_time = time_point<utc_clock, Duration>; // C++20 +using utc_seconds = utc_time<seconds>; // C++20 + +class tai_clock; // C++20 + +template <class Duration> + using tai_time = time_point<tai_clock, Duration>; // C++20 +using tai_seconds = tai_time<seconds>; // C++20 + +class file_clock; // C++20 + +template<class Duration> + using file_time = time_point<file_clock, Duration>; // C++20 + +class steady_clock +{ +public: + typedef nanoseconds duration; + typedef duration::rep rep; + typedef duration::period period; + typedef chrono::time_point<steady_clock, duration> time_point; + static const bool is_steady = true; // constexpr in C++14 + + static time_point now() noexcept; +}; + +typedef steady_clock high_resolution_clock; + +// 25.7.8, local time // C++20 +struct local_t {}; +template<class Duration> + using local_time = time_point<local_t, Duration>; +using local_seconds = local_time<seconds>; +using local_days = local_time<days>; + +// 25.7.9, time_point conversions template<class DestClock, class SourceClock> // C++20 +struct clock_time_conversion; + +template<class DestClock, class SourceClock, class Duration> + auto clock_cast(const time_point<SourceClock, Duration>& t); + +// 25.8.2, class last_spec // C++20 +struct last_spec; + +// 25.8.3, class day // C++20 + +class day; +constexpr bool operator==(const day& x, const day& y) noexcept; +constexpr bool operator!=(const day& x, const day& y) noexcept; +constexpr bool operator< (const day& x, const day& y) noexcept; +constexpr bool operator> (const day& x, const day& y) noexcept; +constexpr bool operator<=(const day& x, const day& y) noexcept; +constexpr bool operator>=(const day& x, const day& y) noexcept; +constexpr day operator+(const day& x, const days& y) noexcept; +constexpr day operator+(const days& x, const day& y) noexcept; +constexpr day operator-(const day& x, const days& y) noexcept; +constexpr days operator-(const day& x, const day& y) noexcept; + +// 25.8.4, class month // C++20 +class month; +constexpr bool operator==(const month& x, const month& y) noexcept; +constexpr bool operator!=(const month& x, const month& y) noexcept; +constexpr bool operator< (const month& x, const month& y) noexcept; +constexpr bool operator> (const month& x, const month& y) noexcept; +constexpr bool operator<=(const month& x, const month& y) noexcept; +constexpr bool operator>=(const month& x, const month& y) noexcept; +constexpr month operator+(const month& x, const months& y) noexcept; +constexpr month operator+(const months& x, const month& y) noexcept; +constexpr month operator-(const month& x, const months& y) noexcept; +constexpr months operator-(const month& x, const month& y) noexcept; + +// 25.8.5, class year // C++20 +class year; +constexpr bool operator==(const year& x, const year& y) noexcept; +constexpr bool operator!=(const year& x, const year& y) noexcept; +constexpr bool operator< (const year& x, const year& y) noexcept; +constexpr bool operator> (const year& x, const year& y) noexcept; +constexpr bool operator<=(const year& x, const year& y) noexcept; +constexpr bool operator>=(const year& x, const year& y) noexcept; +constexpr year operator+(const year& x, const years& y) noexcept; +constexpr year operator+(const years& x, const year& y) noexcept; +constexpr year operator-(const year& x, const years& y) noexcept; +constexpr years operator-(const year& x, const year& y) noexcept; + +// 25.8.6, class weekday // C++20 +class weekday; + +constexpr bool operator==(const weekday& x, const weekday& y) noexcept; +constexpr bool operator!=(const weekday& x, const weekday& y) noexcept; +constexpr weekday operator+(const weekday& x, const days& y) noexcept; +constexpr weekday operator+(const days& x, const weekday& y) noexcept; +constexpr weekday operator-(const weekday& x, const days& y) noexcept; +constexpr days operator-(const weekday& x, const weekday& y) noexcept; + +// 25.8.7, class weekday_indexed // C++20 + +class weekday_indexed; +constexpr bool operator==(const weekday_indexed& x, const weekday_indexed& y) noexcept; +constexpr bool operator!=(const weekday_indexed& x, const weekday_indexed& y) noexcept; + +// 25.8.8, class weekday_last // C++20 +class weekday_last; + +constexpr bool operator==(const weekday_last& x, const weekday_last& y) noexcept; +constexpr bool operator!=(const weekday_last& x, const weekday_last& y) noexcept; + +// 25.8.9, class month_day // C++20 +class month_day; + +constexpr bool operator==(const month_day& x, const month_day& y) noexcept; +constexpr bool operator!=(const month_day& x, const month_day& y) noexcept; +constexpr bool operator< (const month_day& x, const month_day& y) noexcept; +constexpr bool operator> (const month_day& x, const month_day& y) noexcept; +constexpr bool operator<=(const month_day& x, const month_day& y) noexcept; +constexpr bool operator>=(const month_day& x, const month_day& y) noexcept; + + +// 25.8.10, class month_day_last // C++20 +class month_day_last; + +constexpr bool operator==(const month_day_last& x, const month_day_last& y) noexcept; +constexpr bool operator!=(const month_day_last& x, const month_day_last& y) noexcept; +constexpr bool operator< (const month_day_last& x, const month_day_last& y) noexcept; +constexpr bool operator> (const month_day_last& x, const month_day_last& y) noexcept; +constexpr bool operator<=(const month_day_last& x, const month_day_last& y) noexcept; +constexpr bool operator>=(const month_day_last& x, const month_day_last& y) noexcept; + +// 25.8.11, class month_weekday // C++20 +class month_weekday; + +constexpr bool operator==(const month_weekday& x, const month_weekday& y) noexcept; +constexpr bool operator!=(const month_weekday& x, const month_weekday& y) noexcept; + +// 25.8.12, class month_weekday_last // C++20 +class month_weekday_last; + +constexpr bool operator==(const month_weekday_last& x, const month_weekday_last& y) noexcept; +constexpr bool operator!=(const month_weekday_last& x, const month_weekday_last& y) noexcept; + + +// 25.8.13, class year_month // C++20 +class year_month; + +constexpr bool operator==(const year_month& x, const year_month& y) noexcept; +constexpr bool operator!=(const year_month& x, const year_month& y) noexcept; +constexpr bool operator< (const year_month& x, const year_month& y) noexcept; +constexpr bool operator> (const year_month& x, const year_month& y) noexcept; +constexpr bool operator<=(const year_month& x, const year_month& y) noexcept; +constexpr bool operator>=(const year_month& x, const year_month& y) noexcept; + +constexpr year_month operator+(const year_month& ym, const months& dm) noexcept; +constexpr year_month operator+(const months& dm, const year_month& ym) noexcept; +constexpr year_month operator-(const year_month& ym, const months& dm) noexcept; +constexpr months operator-(const year_month& x, const year_month& y) noexcept; +constexpr year_month operator+(const year_month& ym, const years& dy) noexcept; +constexpr year_month operator+(const years& dy, const year_month& ym) noexcept; +constexpr year_month operator-(const year_month& ym, const years& dy) noexcept; + +// 25.8.14, class year_month_day class // C++20 +year_month_day; + +constexpr bool operator==(const year_month_day& x, const year_month_day& y) noexcept; +constexpr bool operator!=(const year_month_day& x, const year_month_day& y) noexcept; +constexpr bool operator< (const year_month_day& x, const year_month_day& y) noexcept; +constexpr bool operator> (const year_month_day& x, const year_month_day& y) noexcept; +constexpr bool operator<=(const year_month_day& x, const year_month_day& y) noexcept; +constexpr bool operator>=(const year_month_day& x, const year_month_day& y) noexcept; + +constexpr year_month_day operator+(const year_month_day& ymd, const months& dm) noexcept; +constexpr year_month_day operator+(const months& dm, const year_month_day& ymd) noexcept; +constexpr year_month_day operator+(const year_month_day& ymd, const years& dy) noexcept; +constexpr year_month_day operator+(const years& dy, const year_month_day& ymd) noexcept; +constexpr year_month_day operator-(const year_month_day& ymd, const months& dm) noexcept; +constexpr year_month_day operator-(const year_month_day& ymd, const years& dy) noexcept; + + +// 25.8.15, class year_month_day_last // C++20 +class year_month_day_last; + +constexpr bool operator==(const year_month_day_last& x, + const year_month_day_last& y) noexcept; +constexpr bool operator!=(const year_month_day_last& x, + const year_month_day_last& y) noexcept; +constexpr bool operator< (const year_month_day_last& x, + const year_month_day_last& y) noexcept; +constexpr bool operator> (const year_month_day_last& x, + const year_month_day_last& y) noexcept; +constexpr bool operator<=(const year_month_day_last& x, + const year_month_day_last& y) noexcept; +constexpr bool operator>=(const year_month_day_last& x, + const year_month_day_last& y) noexcept; + +constexpr year_month_day_last + operator+(const year_month_day_last& ymdl, const months& dm) noexcept; +constexpr year_month_day_last + operator+(const months& dm, const year_month_day_last& ymdl) noexcept; +constexpr year_month_day_last + operator+(const year_month_day_last& ymdl, const years& dy) noexcept; +constexpr year_month_day_last + operator+(const years& dy, const year_month_day_last& ymdl) noexcept; +constexpr year_month_day_last + operator-(const year_month_day_last& ymdl, const months& dm) noexcept; +constexpr year_month_day_last + operator-(const year_month_day_last& ymdl, const years& dy) noexcept; + +// 25.8.16, class year_month_weekday // C++20 +class year_month_weekday; + +constexpr bool operator==(const year_month_weekday& x, + const year_month_weekday& y) noexcept; +constexpr bool operator!=(const year_month_weekday& x, + const year_month_weekday& y) noexcept; + +constexpr year_month_weekday + operator+(const year_month_weekday& ymwd, const months& dm) noexcept; +constexpr year_month_weekday + operator+(const months& dm, const year_month_weekday& ymwd) noexcept; +constexpr year_month_weekday + operator+(const year_month_weekday& ymwd, const years& dy) noexcept; +constexpr year_month_weekday + operator+(const years& dy, const year_month_weekday& ymwd) noexcept; +constexpr year_month_weekday + operator-(const year_month_weekday& ymwd, const months& dm) noexcept; +constexpr year_month_weekday + operator-(const year_month_weekday& ymwd, const years& dy) noexcept; + +// 25.8.17, class year_month_weekday_last // C++20 +class year_month_weekday_last; + +constexpr bool operator==(const year_month_weekday_last& x, + const year_month_weekday_last& y) noexcept; +constexpr bool operator!=(const year_month_weekday_last& x, + const year_month_weekday_last& y) noexcept; +constexpr year_month_weekday_last + operator+(const year_month_weekday_last& ymwdl, const months& dm) noexcept; +constexpr year_month_weekday_last + operator+(const months& dm, const year_month_weekday_last& ymwdl) noexcept; +constexpr year_month_weekday_last + operator+(const year_month_weekday_last& ymwdl, const years& dy) noexcept; +constexpr year_month_weekday_last + operator+(const years& dy, const year_month_weekday_last& ymwdl) noexcept; +constexpr year_month_weekday_last + operator-(const year_month_weekday_last& ymwdl, const months& dm) noexcept; +constexpr year_month_weekday_last + operator-(const year_month_weekday_last& ymwdl, const years& dy) noexcept; + +// 25.8.18, civil calendar conventional syntax operators // C++20 +constexpr year_month + operator/(const year& y, const month& m) noexcept; +constexpr year_month + operator/(const year& y, int m) noexcept; +constexpr month_day + operator/(const month& m, const day& d) noexcept; +constexpr month_day + operator/(const month& m, int d) noexcept; +constexpr month_day + operator/(int m, const day& d) noexcept; +constexpr month_day + operator/(const day& d, const month& m) noexcept; +constexpr month_day + operator/(const day& d, int m) noexcept; +constexpr month_day_last + operator/(const month& m, last_spec) noexcept; +constexpr month_day_last + operator/(int m, last_spec) noexcept; +constexpr month_day_last + operator/(last_spec, const month& m) noexcept; +constexpr month_day_last + operator/(last_spec, int m) noexcept; +constexpr month_weekday + operator/(const month& m, const weekday_indexed& wdi) noexcept; +constexpr month_weekday + operator/(int m, const weekday_indexed& wdi) noexcept; +constexpr month_weekday + operator/(const weekday_indexed& wdi, const month& m) noexcept; +constexpr month_weekday + operator/(const weekday_indexed& wdi, int m) noexcept; +constexpr month_weekday_last + operator/(const month& m, const weekday_last& wdl) noexcept; +constexpr month_weekday_last + operator/(int m, const weekday_last& wdl) noexcept; +constexpr month_weekday_last + operator/(const weekday_last& wdl, const month& m) noexcept; +constexpr month_weekday_last + operator/(const weekday_last& wdl, int m) noexcept; +constexpr year_month_day + operator/(const year_month& ym, const day& d) noexcept; +constexpr year_month_day + operator/(const year_month& ym, int d) noexcept; +constexpr year_month_day + operator/(const year& y, const month_day& md) noexcept; +constexpr year_month_day + operator/(int y, const month_day& md) noexcept; +constexpr year_month_day + operator/(const month_day& md, const year& y) noexcept; +constexpr year_month_day + operator/(const month_day& md, int y) noexcept; +constexpr year_month_day_last + operator/(const year_month& ym, last_spec) noexcept; +constexpr year_month_day_last + operator/(const year& y, const month_day_last& mdl) noexcept; +constexpr year_month_day_last + operator/(int y, const month_day_last& mdl) noexcept; +constexpr year_month_day_last + operator/(const month_day_last& mdl, const year& y) noexcept; +constexpr year_month_day_last + operator/(const month_day_last& mdl, int y) noexcept; +constexpr year_month_weekday + operator/(const year_month& ym, const weekday_indexed& wdi) noexcept; +constexpr year_month_weekday + operator/(const year& y, const month_weekday& mwd) noexcept; +constexpr year_month_weekday + operator/(int y, const month_weekday& mwd) noexcept; +constexpr year_month_weekday + operator/(const month_weekday& mwd, const year& y) noexcept; +constexpr year_month_weekday + operator/(const month_weekday& mwd, int y) noexcept; +constexpr year_month_weekday_last + operator/(const year_month& ym, const weekday_last& wdl) noexcept; +constexpr year_month_weekday_last + operator/(const year& y, const month_weekday_last& mwdl) noexcept; +constexpr year_month_weekday_last + operator/(int y, const month_weekday_last& mwdl) noexcept; +constexpr year_month_weekday_last + operator/(const month_weekday_last& mwdl, const year& y) noexcept; +constexpr year_month_weekday_last + operator/(const month_weekday_last& mwdl, int y) noexcept; + +// 25.9, class template time_of_day // C++20 +template<class Duration> class time_of_day; + +template<> class time_of_day<hours>; +template<> class time_of_day<minutes>; +template<> class time_of_day<seconds>; +template<class Rep, class Period> class time_of_day<duration<Rep, Period>>; + +// 25.10.2, time zone database // C++20 +struct tzdb; +class tzdb_list; + +// 25.10.2.3, time zone database access // C++20 +const tzdb& get_tzdb(); +tzdb_list& get_tzdb_list(); +const time_zone* locate_zone(string_view tz_name); +const time_zone* current_zone(); + +// 25.10.2.4, remote time zone database support // C++20 +const tzdb& reload_tzdb(); +string remote_version(); + +// 25.10.3, exception classes // C++20 +class nonexistent_local_time; +class ambiguous_local_time; + +// 25.10.4, information classes // C++20 +struct sys_info; +struct local_info; + +// 25.10.5, class time_zone // C++20 +enum class choose {earliest, latest}; +class time_zone; +bool operator==(const time_zone& x, const time_zone& y) noexcept; +bool operator!=(const time_zone& x, const time_zone& y) noexcept; +bool operator<(const time_zone& x, const time_zone& y) noexcept; +bool operator>(const time_zone& x, const time_zone& y) noexcept; +bool operator<=(const time_zone& x, const time_zone& y) noexcept; +bool operator>=(const time_zone& x, const time_zone& y) noexcept; + +// 25.10.6, class template zoned_traits // C++20 +template<class T> struct zoned_traits; + +// 25.10.7, class template zoned_time // C++20 +template<class Duration, class TimeZonePtr = const time_zone*> class zoned_time; +using zoned_seconds = zoned_time<seconds>; + +template<class Duration1, class Duration2, class TimeZonePtr> + bool operator==(const zoned_time<Duration1, TimeZonePtr>& x, + const zoned_time<Duration2, TimeZonePtr>& y); +template<class Duration1, class Duration2, class TimeZonePtr> + bool operator!=(const zoned_time<Duration1, TimeZonePtr>& x, + const zoned_time<Duration2, TimeZonePtr>& y); + +// 25.10.8, leap second support // C++20 +class leap; + +bool operator==(const leap& x, const leap& y); +bool operator!=(const leap& x, const leap& y); +bool operator< (const leap& x, const leap& y); +bool operator> (const leap& x, const leap& y); +bool operator<=(const leap& x, const leap& y); +bool operator>=(const leap& x, const leap& y); +template<class Duration> + bool operator==(const leap& x, const sys_time<Duration>& y); +template<class Duration> + bool operator==(const sys_time<Duration>& x, const leap& y); +template<class Duration> + bool operator!=(const leap& x, const sys_time<Duration>& y); +template<class Duration> + bool operator!=(const sys_time<Duration>& x, const leap& y); +template<class Duration> + bool operator< (const leap& x, const sys_time<Duration>& y); +template<class Duration> + bool operator< (const sys_time<Duration>& x, const leap& y); +template<class Duration> + bool operator> (const leap& x, const sys_time<Duration>& y); +template<class Duration> + bool operator> (const sys_time<Duration>& x, const leap& y); +template<class Duration> + bool operator<=(const leap& x, const sys_time<Duration>& y); +template<class Duration> + bool operator<=(const sys_time<Duration>& x, const leap& y); +template<class Duration> + bool operator>=(const leap& x, const sys_time<Duration>& y); +template<class Duration> + bool operator>=(const sys_time<Duration>& x, const leap& y); + +// 25.10.9, class link // C++20 +class link; +bool operator==(const link& x, const link& y); +bool operator!=(const link& x, const link& y); +bool operator< (const link& x, const link& y); +bool operator> (const link& x, const link& y); +bool operator<=(const link& x, const link& y); +bool operator>=(const link& x, const link& y); + +// 25.11, formatting // C++20 +template<class charT, class Streamable> + basic_string<charT> + format(const charT* fmt, const Streamable& s); + +template<class charT, class Streamable> + basic_string<charT> + format(const locale& loc, const charT* fmt, const Streamable& s); + +template<class charT, class traits, class Alloc, class Streamable> + basic_string<charT, traits, Alloc> + format(const basic_string<charT, traits, Alloc>& fmt, const Streamable& s); + +template<class charT, class traits, class Alloc, class Streamable> + basic_string<charT, traits, Alloc> + format(const locale& loc, const basic_string<charT, traits, Alloc>& fmt, + const Streamable& s); + +// 25.12, parsing // C++20 +template<class charT, class traits, class Alloc, class Parsable> +unspecified + parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp); + +template<class charT, class traits, class Alloc, class Parsable> +unspecified + parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp, + basic_string<charT, traits, Alloc>& abbrev); + +template<class charT, class traits, class Alloc, class Parsable> +unspecified + parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp, + minutes& offset); + +template<class charT, class traits, class Alloc, class Parsable> +unspecified + parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp, + basic_string<charT, traits, Alloc>& abbrev, minutes& offset); + +// calendrical constants +inline constexpr last_spec last{}; // C++20 +inline constexpr chrono::weekday Sunday{0}; // C++20 +inline constexpr chrono::weekday Monday{1}; // C++20 +inline constexpr chrono::weekday Tuesday{2}; // C++20 +inline constexpr chrono::weekday Wednesday{3}; // C++20 +inline constexpr chrono::weekday Thursday{4}; // C++20 +inline constexpr chrono::weekday Friday{5}; // C++20 +inline constexpr chrono::weekday Saturday{6}; // C++20 + +inline constexpr chrono::month January{1}; // C++20 +inline constexpr chrono::month February{2}; // C++20 +inline constexpr chrono::month March{3}; // C++20 +inline constexpr chrono::month April{4}; // C++20 +inline constexpr chrono::month May{5}; // C++20 +inline constexpr chrono::month June{6}; // C++20 +inline constexpr chrono::month July{7}; // C++20 +inline constexpr chrono::month August{8}; // C++20 +inline constexpr chrono::month September{9}; // C++20 +inline constexpr chrono::month October{10}; // C++20 +inline constexpr chrono::month November{11}; // C++20 +inline constexpr chrono::month December{12}; // C++20 +} // chrono + +inline namespace literals { + inline namespace chrono_literals { +constexpr chrono::hours operator ""h(unsigned long long); // C++14 +constexpr chrono::duration<unspecified , ratio<3600,1>> operator ""h(long double); // C++14 +constexpr chrono::minutes operator ""min(unsigned long long); // C++14 +constexpr chrono::duration<unspecified , ratio<60,1>> operator ""min(long double); // C++14 +constexpr chrono::seconds operator ""s(unsigned long long); // C++14 +constexpr chrono::duration<unspecified > operator ""s(long double); // C++14 +constexpr chrono::milliseconds operator ""ms(unsigned long long); // C++14 +constexpr chrono::duration<unspecified , milli> operator ""ms(long double); // C++14 +constexpr chrono::microseconds operator ""us(unsigned long long); // C++14 +constexpr chrono::duration<unspecified , micro> operator ""us(long double); // C++14 +constexpr chrono::nanoseconds operator ""ns(unsigned long long); // C++14 +constexpr chrono::duration<unspecified , nano> operator ""ns(long double); // C++14 +constexpr chrono::day operator ""d(unsigned long long d) noexcept; // C++20 +constexpr chrono::year operator ""y(unsigned long long y) noexcept; // C++20 +} // chrono_literals +} // literals + +} // std +*/ + +#include <__config> +#include <ctime> +#include <type_traits> +#include <ratio> +#include <limits> +#include <version> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_PUSH_MACROS +#include <__undef_macros> + +#ifndef _LIBCPP_CXX03_LANG +_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM +struct _FilesystemClock; +_LIBCPP_END_NAMESPACE_FILESYSTEM +#endif // !_LIBCPP_CXX03_LANG + +_LIBCPP_BEGIN_NAMESPACE_STD + +namespace chrono +{ + +template <class _Rep, class _Period = ratio<1> > class _LIBCPP_TEMPLATE_VIS duration; + +template <class _Tp> +struct __is_duration : false_type {}; + +template <class _Rep, class _Period> +struct __is_duration<duration<_Rep, _Period> > : true_type {}; + +template <class _Rep, class _Period> +struct __is_duration<const duration<_Rep, _Period> > : true_type {}; + +template <class _Rep, class _Period> +struct __is_duration<volatile duration<_Rep, _Period> > : true_type {}; + +template <class _Rep, class _Period> +struct __is_duration<const volatile duration<_Rep, _Period> > : true_type {}; + +} // chrono + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +struct _LIBCPP_TEMPLATE_VIS common_type<chrono::duration<_Rep1, _Period1>, + chrono::duration<_Rep2, _Period2> > +{ + typedef chrono::duration<typename common_type<_Rep1, _Rep2>::type, + typename __ratio_gcd<_Period1, _Period2>::type> type; +}; + +namespace chrono { + +// duration_cast + +template <class _FromDuration, class _ToDuration, + class _Period = typename ratio_divide<typename _FromDuration::period, typename _ToDuration::period>::type, + bool = _Period::num == 1, + bool = _Period::den == 1> +struct __duration_cast; + +template <class _FromDuration, class _ToDuration, class _Period> +struct __duration_cast<_FromDuration, _ToDuration, _Period, true, true> +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + _ToDuration operator()(const _FromDuration& __fd) const + { + return _ToDuration(static_cast<typename _ToDuration::rep>(__fd.count())); + } +}; + +template <class _FromDuration, class _ToDuration, class _Period> +struct __duration_cast<_FromDuration, _ToDuration, _Period, true, false> +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + _ToDuration operator()(const _FromDuration& __fd) const + { + typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; + return _ToDuration(static_cast<typename _ToDuration::rep>( + static_cast<_Ct>(__fd.count()) / static_cast<_Ct>(_Period::den))); + } +}; + +template <class _FromDuration, class _ToDuration, class _Period> +struct __duration_cast<_FromDuration, _ToDuration, _Period, false, true> +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + _ToDuration operator()(const _FromDuration& __fd) const + { + typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; + return _ToDuration(static_cast<typename _ToDuration::rep>( + static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num))); + } +}; + +template <class _FromDuration, class _ToDuration, class _Period> +struct __duration_cast<_FromDuration, _ToDuration, _Period, false, false> +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + _ToDuration operator()(const _FromDuration& __fd) const + { + typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; + return _ToDuration(static_cast<typename _ToDuration::rep>( + static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num) + / static_cast<_Ct>(_Period::den))); + } +}; + +template <class _ToDuration, class _Rep, class _Period> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename enable_if +< + __is_duration<_ToDuration>::value, + _ToDuration +>::type +duration_cast(const duration<_Rep, _Period>& __fd) +{ + return __duration_cast<duration<_Rep, _Period>, _ToDuration>()(__fd); +} + +template <class _Rep> +struct _LIBCPP_TEMPLATE_VIS treat_as_floating_point : is_floating_point<_Rep> {}; + +#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) +template <class _Rep> +_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool treat_as_floating_point_v + = treat_as_floating_point<_Rep>::value; +#endif + +template <class _Rep> +struct _LIBCPP_TEMPLATE_VIS duration_values +{ +public: + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep zero() _NOEXCEPT {return _Rep(0);} + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep max() _NOEXCEPT {return numeric_limits<_Rep>::max();} + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep min() _NOEXCEPT {return numeric_limits<_Rep>::lowest();} +}; + +#if _LIBCPP_STD_VER > 14 +template <class _ToDuration, class _Rep, class _Period> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +typename enable_if +< + __is_duration<_ToDuration>::value, + _ToDuration +>::type +floor(const duration<_Rep, _Period>& __d) +{ + _ToDuration __t = duration_cast<_ToDuration>(__d); + if (__t > __d) + __t = __t - _ToDuration{1}; + return __t; +} + +template <class _ToDuration, class _Rep, class _Period> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +typename enable_if +< + __is_duration<_ToDuration>::value, + _ToDuration +>::type +ceil(const duration<_Rep, _Period>& __d) +{ + _ToDuration __t = duration_cast<_ToDuration>(__d); + if (__t < __d) + __t = __t + _ToDuration{1}; + return __t; +} + +template <class _ToDuration, class _Rep, class _Period> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +typename enable_if +< + __is_duration<_ToDuration>::value, + _ToDuration +>::type +round(const duration<_Rep, _Period>& __d) +{ + _ToDuration __lower = floor<_ToDuration>(__d); + _ToDuration __upper = __lower + _ToDuration{1}; + auto __lowerDiff = __d - __lower; + auto __upperDiff = __upper - __d; + if (__lowerDiff < __upperDiff) + return __lower; + if (__lowerDiff > __upperDiff) + return __upper; + return __lower.count() & 1 ? __upper : __lower; +} +#endif + +// duration + +template <class _Rep, class _Period> +class _LIBCPP_TEMPLATE_VIS duration +{ + static_assert(!__is_duration<_Rep>::value, "A duration representation can not be a duration"); + static_assert(__is_ratio<_Period>::value, "Second template parameter of duration must be a std::ratio"); + static_assert(_Period::num > 0, "duration period must be positive"); + + template <class _R1, class _R2> + struct __no_overflow + { + private: + static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>::value; + static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>::value; + static const intmax_t __n1 = _R1::num / __gcd_n1_n2; + static const intmax_t __d1 = _R1::den / __gcd_d1_d2; + static const intmax_t __n2 = _R2::num / __gcd_n1_n2; + static const intmax_t __d2 = _R2::den / __gcd_d1_d2; + static const intmax_t max = -((intmax_t(1) << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1); + + template <intmax_t _Xp, intmax_t _Yp, bool __overflow> + struct __mul // __overflow == false + { + static const intmax_t value = _Xp * _Yp; + }; + + template <intmax_t _Xp, intmax_t _Yp> + struct __mul<_Xp, _Yp, true> + { + static const intmax_t value = 1; + }; + + public: + static const bool value = (__n1 <= max / __d2) && (__n2 <= max / __d1); + typedef ratio<__mul<__n1, __d2, !value>::value, + __mul<__n2, __d1, !value>::value> type; + }; + +public: + typedef _Rep rep; + typedef typename _Period::type period; +private: + rep __rep_; +public: + + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +#ifndef _LIBCPP_CXX03_LANG + duration() = default; +#else + duration() {} +#endif + + template <class _Rep2> + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + explicit duration(const _Rep2& __r, + typename enable_if + < + is_convertible<_Rep2, rep>::value && + (treat_as_floating_point<rep>::value || + !treat_as_floating_point<_Rep2>::value) + >::type* = 0) + : __rep_(__r) {} + + // conversions + template <class _Rep2, class _Period2> + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + duration(const duration<_Rep2, _Period2>& __d, + typename enable_if + < + __no_overflow<_Period2, period>::value && ( + treat_as_floating_point<rep>::value || + (__no_overflow<_Period2, period>::type::den == 1 && + !treat_as_floating_point<_Rep2>::value)) + >::type* = 0) + : __rep_(_VSTD::chrono::duration_cast<duration>(__d).count()) {} + + // observer + + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR rep count() const {return __rep_;} + + // arithmetic + + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR typename common_type<duration>::type operator+() const {return typename common_type<duration>::type(*this);} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR typename common_type<duration>::type operator-() const {return typename common_type<duration>::type(-__rep_);} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator++() {++__rep_; return *this;} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration operator++(int) {return duration(__rep_++);} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator--() {--__rep_; return *this;} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration operator--(int) {return duration(__rep_--);} + + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator+=(const duration& __d) {__rep_ += __d.count(); return *this;} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator-=(const duration& __d) {__rep_ -= __d.count(); return *this;} + + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator*=(const rep& rhs) {__rep_ *= rhs; return *this;} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator/=(const rep& rhs) {__rep_ /= rhs; return *this;} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator%=(const rep& rhs) {__rep_ %= rhs; return *this;} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator%=(const duration& rhs) {__rep_ %= rhs.count(); return *this;} + + // special values + + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration zero() _NOEXCEPT {return duration(duration_values<rep>::zero());} + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration min() _NOEXCEPT {return duration(duration_values<rep>::min());} + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration max() _NOEXCEPT {return duration(duration_values<rep>::max());} +}; + +typedef duration<long long, nano> nanoseconds; +typedef duration<long long, micro> microseconds; +typedef duration<long long, milli> milliseconds; +typedef duration<long long > seconds; +typedef duration< long, ratio< 60> > minutes; +typedef duration< long, ratio<3600> > hours; +#if _LIBCPP_STD_VER > 17 +typedef duration< int, ratio_multiply<ratio<24>, hours::period>> days; +typedef duration< int, ratio_multiply<ratio<7>, days::period>> weeks; +typedef duration< int, ratio_multiply<ratio<146097, 400>, days::period>> years; +typedef duration< int, ratio_divide<years::period, ratio<12>>> months; +#endif +// Duration == + +template <class _LhsDuration, class _RhsDuration> +struct __duration_eq +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const + { + typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct; + return _Ct(__lhs).count() == _Ct(__rhs).count(); + } +}; + +template <class _LhsDuration> +struct __duration_eq<_LhsDuration, _LhsDuration> +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const + {return __lhs.count() == __rhs.count();} +}; + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +bool +operator==(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + return __duration_eq<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs); +} + +// Duration != + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +bool +operator!=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + return !(__lhs == __rhs); +} + +// Duration < + +template <class _LhsDuration, class _RhsDuration> +struct __duration_lt +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const + { + typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct; + return _Ct(__lhs).count() < _Ct(__rhs).count(); + } +}; + +template <class _LhsDuration> +struct __duration_lt<_LhsDuration, _LhsDuration> +{ + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR + bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const + {return __lhs.count() < __rhs.count();} +}; + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +bool +operator< (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + return __duration_lt<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs); +} + +// Duration > + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +bool +operator> (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + return __rhs < __lhs; +} + +// Duration <= + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +bool +operator<=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + return !(__rhs < __lhs); +} + +// Duration >= + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +bool +operator>=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + return !(__lhs < __rhs); +} + +// Duration + + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type +operator+(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; + return _Cd(_Cd(__lhs).count() + _Cd(__rhs).count()); +} + +// Duration - + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type +operator-(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; + return _Cd(_Cd(__lhs).count() - _Cd(__rhs).count()); +} + +// Duration * + +template <class _Rep1, class _Period, class _Rep2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename enable_if +< + is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value, + duration<typename common_type<_Rep1, _Rep2>::type, _Period> +>::type +operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s) +{ + typedef typename common_type<_Rep1, _Rep2>::type _Cr; + typedef duration<_Cr, _Period> _Cd; + return _Cd(_Cd(__d).count() * static_cast<_Cr>(__s)); +} + +template <class _Rep1, class _Period, class _Rep2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename enable_if +< + is_convertible<_Rep1, typename common_type<_Rep1, _Rep2>::type>::value, + duration<typename common_type<_Rep1, _Rep2>::type, _Period> +>::type +operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d) +{ + return __d * __s; +} + +// Duration / + +template <class _Duration, class _Rep, bool = __is_duration<_Rep>::value> +struct __duration_divide_result +{ +}; + +template <class _Duration, class _Rep2, + bool = is_convertible<_Rep2, + typename common_type<typename _Duration::rep, _Rep2>::type>::value> +struct __duration_divide_imp +{ +}; + +template <class _Rep1, class _Period, class _Rep2> +struct __duration_divide_imp<duration<_Rep1, _Period>, _Rep2, true> +{ + typedef duration<typename common_type<_Rep1, _Rep2>::type, _Period> type; +}; + +template <class _Rep1, class _Period, class _Rep2> +struct __duration_divide_result<duration<_Rep1, _Period>, _Rep2, false> + : __duration_divide_imp<duration<_Rep1, _Period>, _Rep2> +{ +}; + +template <class _Rep1, class _Period, class _Rep2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename __duration_divide_result<duration<_Rep1, _Period>, _Rep2>::type +operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s) +{ + typedef typename common_type<_Rep1, _Rep2>::type _Cr; + typedef duration<_Cr, _Period> _Cd; + return _Cd(_Cd(__d).count() / static_cast<_Cr>(__s)); +} + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename common_type<_Rep1, _Rep2>::type +operator/(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Ct; + return _Ct(__lhs).count() / _Ct(__rhs).count(); +} + +// Duration % + +template <class _Rep1, class _Period, class _Rep2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename __duration_divide_result<duration<_Rep1, _Period>, _Rep2>::type +operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s) +{ + typedef typename common_type<_Rep1, _Rep2>::type _Cr; + typedef duration<_Cr, _Period> _Cd; + return _Cd(_Cd(__d).count() % static_cast<_Cr>(__s)); +} + +template <class _Rep1, class _Period1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY +_LIBCPP_CONSTEXPR +typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type +operator%(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + typedef typename common_type<_Rep1, _Rep2>::type _Cr; + typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; + return _Cd(static_cast<_Cr>(_Cd(__lhs).count()) % static_cast<_Cr>(_Cd(__rhs).count())); +} + +////////////////////////////////////////////////////////// +///////////////////// time_point ///////////////////////// +////////////////////////////////////////////////////////// + +template <class _Clock, class _Duration = typename _Clock::duration> +class _LIBCPP_TEMPLATE_VIS time_point +{ + static_assert(__is_duration<_Duration>::value, + "Second template parameter of time_point must be a std::chrono::duration"); +public: + typedef _Clock clock; + typedef _Duration duration; + typedef typename duration::rep rep; + typedef typename duration::period period; +private: + duration __d_; + +public: + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 time_point() : __d_(duration::zero()) {} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 explicit time_point(const duration& __d) : __d_(__d) {} + + // conversions + template <class _Duration2> + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 + time_point(const time_point<clock, _Duration2>& t, + typename enable_if + < + is_convertible<_Duration2, duration>::value + >::type* = 0) + : __d_(t.time_since_epoch()) {} + + // observer + + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 duration time_since_epoch() const {return __d_;} + + // arithmetic + + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 time_point& operator+=(const duration& __d) {__d_ += __d; return *this;} + _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 time_point& operator-=(const duration& __d) {__d_ -= __d; return *this;} + + // special values + + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point min() _NOEXCEPT {return time_point(duration::min());} + _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point max() _NOEXCEPT {return time_point(duration::max());} +}; + +} // chrono + +template <class _Clock, class _Duration1, class _Duration2> +struct _LIBCPP_TEMPLATE_VIS common_type<chrono::time_point<_Clock, _Duration1>, + chrono::time_point<_Clock, _Duration2> > +{ + typedef chrono::time_point<_Clock, typename common_type<_Duration1, _Duration2>::type> type; +}; + +namespace chrono { + +template <class _ToDuration, class _Clock, class _Duration> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +time_point<_Clock, _ToDuration> +time_point_cast(const time_point<_Clock, _Duration>& __t) +{ + return time_point<_Clock, _ToDuration>(_VSTD::chrono::duration_cast<_ToDuration>(__t.time_since_epoch())); +} + +#if _LIBCPP_STD_VER > 14 +template <class _ToDuration, class _Clock, class _Duration> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +typename enable_if +< + __is_duration<_ToDuration>::value, + time_point<_Clock, _ToDuration> +>::type +floor(const time_point<_Clock, _Duration>& __t) +{ + return time_point<_Clock, _ToDuration>{floor<_ToDuration>(__t.time_since_epoch())}; +} + +template <class _ToDuration, class _Clock, class _Duration> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +typename enable_if +< + __is_duration<_ToDuration>::value, + time_point<_Clock, _ToDuration> +>::type +ceil(const time_point<_Clock, _Duration>& __t) +{ + return time_point<_Clock, _ToDuration>{ceil<_ToDuration>(__t.time_since_epoch())}; +} + +template <class _ToDuration, class _Clock, class _Duration> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +typename enable_if +< + __is_duration<_ToDuration>::value, + time_point<_Clock, _ToDuration> +>::type +round(const time_point<_Clock, _Duration>& __t) +{ + return time_point<_Clock, _ToDuration>{round<_ToDuration>(__t.time_since_epoch())}; +} + +template <class _Rep, class _Period> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR +typename enable_if +< + numeric_limits<_Rep>::is_signed, + duration<_Rep, _Period> +>::type +abs(duration<_Rep, _Period> __d) +{ + return __d >= __d.zero() ? __d : -__d; +} +#endif + +// time_point == + +template <class _Clock, class _Duration1, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +bool +operator==(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return __lhs.time_since_epoch() == __rhs.time_since_epoch(); +} + +// time_point != + +template <class _Clock, class _Duration1, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +bool +operator!=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return !(__lhs == __rhs); +} + +// time_point < + +template <class _Clock, class _Duration1, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +bool +operator<(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return __lhs.time_since_epoch() < __rhs.time_since_epoch(); +} + +// time_point > + +template <class _Clock, class _Duration1, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +bool +operator>(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return __rhs < __lhs; +} + +// time_point <= + +template <class _Clock, class _Duration1, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +bool +operator<=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return !(__rhs < __lhs); +} + +// time_point >= + +template <class _Clock, class _Duration1, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +bool +operator>=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return !(__lhs < __rhs); +} + +// time_point operator+(time_point x, duration y); + +template <class _Clock, class _Duration1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> +operator+(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + typedef time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> _Tr; + return _Tr (__lhs.time_since_epoch() + __rhs); +} + +// time_point operator+(duration x, time_point y); + +template <class _Rep1, class _Period1, class _Clock, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +time_point<_Clock, typename common_type<duration<_Rep1, _Period1>, _Duration2>::type> +operator+(const duration<_Rep1, _Period1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return __rhs + __lhs; +} + +// time_point operator-(time_point x, duration y); + +template <class _Clock, class _Duration1, class _Rep2, class _Period2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> +operator-(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs) +{ + typedef time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> _Ret; + return _Ret(__lhs.time_since_epoch() -__rhs); +} + +// duration operator-(time_point x, time_point y); + +template <class _Clock, class _Duration1, class _Duration2> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 +typename common_type<_Duration1, _Duration2>::type +operator-(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) +{ + return __lhs.time_since_epoch() - __rhs.time_since_epoch(); +} + +////////////////////////////////////////////////////////// +/////////////////////// clocks /////////////////////////// +////////////////////////////////////////////////////////// + +class _LIBCPP_TYPE_VIS system_clock +{ +public: + typedef microseconds duration; + typedef duration::rep rep; + typedef duration::period period; + typedef chrono::time_point<system_clock> time_point; + static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false; + + static time_point now() _NOEXCEPT; + static time_t to_time_t (const time_point& __t) _NOEXCEPT; + static time_point from_time_t(time_t __t) _NOEXCEPT; +}; + +#ifndef _LIBCPP_HAS_NO_MONOTONIC_CLOCK +class _LIBCPP_TYPE_VIS steady_clock +{ +public: + typedef nanoseconds duration; + typedef duration::rep rep; + typedef duration::period period; + typedef chrono::time_point<steady_clock, duration> time_point; + static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = true; + + static time_point now() _NOEXCEPT; +}; + +typedef steady_clock high_resolution_clock; +#else +typedef system_clock high_resolution_clock; +#endif + +#if _LIBCPP_STD_VER > 17 +// [time.clock.file], type file_clock +using file_clock = _VSTD_FS::_FilesystemClock; + +template<class _Duration> +using file_time = time_point<file_clock, _Duration>; + + +template <class _Duration> +using sys_time = time_point<system_clock, _Duration>; +using sys_seconds = sys_time<seconds>; +using sys_days = sys_time<days>; + +struct local_t {}; +template<class Duration> +using local_time = time_point<local_t, Duration>; +using local_seconds = local_time<seconds>; +using local_days = local_time<days>; + + +struct _LIBCPP_TYPE_VIS last_spec { explicit last_spec() = default; }; + +class _LIBCPP_TYPE_VIS day { +private: + unsigned char __d; +public: + day() = default; + explicit inline constexpr day(unsigned __val) noexcept : __d(static_cast<unsigned char>(__val)) {} + inline constexpr day& operator++() noexcept { ++__d; return *this; } + inline constexpr day operator++(int) noexcept { day __tmp = *this; ++(*this); return __tmp; } + inline constexpr day& operator--() noexcept { --__d; return *this; } + inline constexpr day operator--(int) noexcept { day __tmp = *this; --(*this); return __tmp; } + constexpr day& operator+=(const days& __dd) noexcept; + constexpr day& operator-=(const days& __dd) noexcept; + explicit inline constexpr operator unsigned() const noexcept { return __d; } + inline constexpr bool ok() const noexcept { return __d >= 1 && __d <= 31; } + }; + + +inline constexpr +bool operator==(const day& __lhs, const day& __rhs) noexcept +{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } + +inline constexpr +bool operator!=(const day& __lhs, const day& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +bool operator< (const day& __lhs, const day& __rhs) noexcept +{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); } + +inline constexpr +bool operator> (const day& __lhs, const day& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const day& __lhs, const day& __rhs) noexcept +{ return !(__rhs < __lhs);} + +inline constexpr +bool operator>=(const day& __lhs, const day& __rhs) noexcept +{ return !(__lhs < __rhs); } + +inline constexpr +day operator+ (const day& __lhs, const days& __rhs) noexcept +{ return day(static_cast<unsigned>(__lhs) + __rhs.count()); } + +inline constexpr +day operator+ (const days& __lhs, const day& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +day operator- (const day& __lhs, const days& __rhs) noexcept +{ return __lhs + -__rhs; } + +inline constexpr +days operator-(const day& __lhs, const day& __rhs) noexcept +{ return days(static_cast<int>(static_cast<unsigned>(__lhs)) - + static_cast<int>(static_cast<unsigned>(__rhs))); } + +inline constexpr day& day::operator+=(const days& __dd) noexcept +{ *this = *this + __dd; return *this; } + +inline constexpr day& day::operator-=(const days& __dd) noexcept +{ *this = *this - __dd; return *this; } + + +class _LIBCPP_TYPE_VIS month { +private: + unsigned char __m; +public: + month() = default; + explicit inline constexpr month(unsigned __val) noexcept : __m(static_cast<unsigned char>(__val)) {} + inline constexpr month& operator++() noexcept { ++__m; return *this; } + inline constexpr month operator++(int) noexcept { month __tmp = *this; ++(*this); return __tmp; } + inline constexpr month& operator--() noexcept { --__m; return *this; } + inline constexpr month operator--(int) noexcept { month __tmp = *this; --(*this); return __tmp; } + constexpr month& operator+=(const months& __m1) noexcept; + constexpr month& operator-=(const months& __m1) noexcept; + explicit inline constexpr operator unsigned() const noexcept { return __m; } + inline constexpr bool ok() const noexcept { return __m >= 1 && __m <= 12; } +}; + + +inline constexpr +bool operator==(const month& __lhs, const month& __rhs) noexcept +{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } + +inline constexpr +bool operator!=(const month& __lhs, const month& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +bool operator< (const month& __lhs, const month& __rhs) noexcept +{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); } + +inline constexpr +bool operator> (const month& __lhs, const month& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const month& __lhs, const month& __rhs) noexcept +{ return !(__rhs < __lhs); } + +inline constexpr +bool operator>=(const month& __lhs, const month& __rhs) noexcept +{ return !(__lhs < __rhs); } + +inline constexpr +month operator+ (const month& __lhs, const months& __rhs) noexcept +{ + auto const __mu = static_cast<long long>(static_cast<unsigned>(__lhs)) + (__rhs.count() - 1); + auto const __yr = (__mu >= 0 ? __mu : __mu - 11) / 12; + return month{static_cast<unsigned>(__mu - __yr * 12 + 1)}; +} + +inline constexpr +month operator+ (const months& __lhs, const month& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +month operator- (const month& __lhs, const months& __rhs) noexcept +{ return __lhs + -__rhs; } + +inline constexpr +months operator-(const month& __lhs, const month& __rhs) noexcept +{ + auto const __dm = static_cast<unsigned>(__lhs) - static_cast<unsigned>(__rhs); + return months(__dm <= 11 ? __dm : __dm + 12); +} + +inline constexpr month& month::operator+=(const months& __dm) noexcept +{ *this = *this + __dm; return *this; } + +inline constexpr month& month::operator-=(const months& __dm) noexcept +{ *this = *this - __dm; return *this; } + + +class _LIBCPP_TYPE_VIS year { +private: + short __y; +public: + year() = default; + explicit inline constexpr year(int __val) noexcept : __y(static_cast<short>(__val)) {} + + inline constexpr year& operator++() noexcept { ++__y; return *this; } + inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; } + inline constexpr year& operator--() noexcept { --__y; return *this; } + inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; } + constexpr year& operator+=(const years& __dy) noexcept; + constexpr year& operator-=(const years& __dy) noexcept; + inline constexpr year operator+() const noexcept { return *this; } + inline constexpr year operator-() const noexcept { return year{-__y}; } + + inline constexpr bool is_leap() const noexcept { return __y % 4 == 0 && (__y % 100 != 0 || __y % 400 == 0); } + explicit inline constexpr operator int() const noexcept { return __y; } + constexpr bool ok() const noexcept; + static inline constexpr year min() noexcept { return year{-32767}; } + static inline constexpr year max() noexcept { return year{ 32767}; } +}; + + +inline constexpr +bool operator==(const year& __lhs, const year& __rhs) noexcept +{ return static_cast<int>(__lhs) == static_cast<int>(__rhs); } + +inline constexpr +bool operator!=(const year& __lhs, const year& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +bool operator< (const year& __lhs, const year& __rhs) noexcept +{ return static_cast<int>(__lhs) < static_cast<int>(__rhs); } + +inline constexpr +bool operator> (const year& __lhs, const year& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const year& __lhs, const year& __rhs) noexcept +{ return !(__rhs < __lhs); } + +inline constexpr +bool operator>=(const year& __lhs, const year& __rhs) noexcept +{ return !(__lhs < __rhs); } + +inline constexpr +year operator+ (const year& __lhs, const years& __rhs) noexcept +{ return year(static_cast<int>(__lhs) + __rhs.count()); } + +inline constexpr +year operator+ (const years& __lhs, const year& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year operator- (const year& __lhs, const years& __rhs) noexcept +{ return __lhs + -__rhs; } + +inline constexpr +years operator-(const year& __lhs, const year& __rhs) noexcept +{ return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; } + + +inline constexpr year& year::operator+=(const years& __dy) noexcept +{ *this = *this + __dy; return *this; } + +inline constexpr year& year::operator-=(const years& __dy) noexcept +{ *this = *this - __dy; return *this; } + +inline constexpr bool year::ok() const noexcept +{ return static_cast<int>(min()) <= __y && __y <= static_cast<int>(max()); } + +class _LIBCPP_TYPE_VIS weekday_indexed; +class _LIBCPP_TYPE_VIS weekday_last; + +class _LIBCPP_TYPE_VIS weekday { +private: + unsigned char __wd; +public: + weekday() = default; + inline explicit constexpr weekday(unsigned __val) noexcept : __wd(static_cast<unsigned char>(__val)) {} + inline constexpr weekday(const sys_days& __sysd) noexcept + : __wd(__weekday_from_days(__sysd.time_since_epoch().count())) {} + inline explicit constexpr weekday(const local_days& __locd) noexcept + : __wd(__weekday_from_days(__locd.time_since_epoch().count())) {} + + inline constexpr weekday& operator++() noexcept { __wd = (__wd == 6 ? 0 : __wd + 1); return *this; } + inline constexpr weekday operator++(int) noexcept { weekday __tmp = *this; ++(*this); return __tmp; } + inline constexpr weekday& operator--() noexcept { __wd = (__wd == 0 ? 6 : __wd - 1); return *this; } + inline constexpr weekday operator--(int) noexcept { weekday __tmp = *this; --(*this); return __tmp; } + constexpr weekday& operator+=(const days& __dd) noexcept; + constexpr weekday& operator-=(const days& __dd) noexcept; + inline explicit constexpr operator unsigned() const noexcept { return __wd; } + inline constexpr bool ok() const noexcept { return __wd <= 6; } + constexpr weekday_indexed operator[](unsigned __index) const noexcept; + constexpr weekday_last operator[](last_spec) const noexcept; + + static constexpr unsigned char __weekday_from_days(int __days) noexcept; +}; + + +// https://howardhinnant.github.io/date_algorithms.html#weekday_from_days +inline constexpr +unsigned char weekday::__weekday_from_days(int __days) noexcept +{ + return static_cast<unsigned char>( + static_cast<unsigned>(__days >= -4 ? (__days+4) % 7 : (__days+5) % 7 + 6) + ); +} + +inline constexpr +bool operator==(const weekday& __lhs, const weekday& __rhs) noexcept +{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } + +inline constexpr +bool operator!=(const weekday& __lhs, const weekday& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +bool operator< (const weekday& __lhs, const weekday& __rhs) noexcept +{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); } + +inline constexpr +bool operator> (const weekday& __lhs, const weekday& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const weekday& __lhs, const weekday& __rhs) noexcept +{ return !(__rhs < __lhs);} + +inline constexpr +bool operator>=(const weekday& __lhs, const weekday& __rhs) noexcept +{ return !(__lhs < __rhs); } + +constexpr weekday operator+(const weekday& __lhs, const days& __rhs) noexcept +{ + auto const __mu = static_cast<long long>(static_cast<unsigned>(__lhs)) + __rhs.count(); + auto const __yr = (__mu >= 0 ? __mu : __mu - 6) / 7; + return weekday{static_cast<unsigned>(__mu - __yr * 7)}; +} + +constexpr weekday operator+(const days& __lhs, const weekday& __rhs) noexcept +{ return __rhs + __lhs; } + +constexpr weekday operator-(const weekday& __lhs, const days& __rhs) noexcept +{ return __lhs + -__rhs; } + +constexpr days operator-(const weekday& __lhs, const weekday& __rhs) noexcept +{ + const int __wdu = static_cast<unsigned>(__lhs) - static_cast<unsigned>(__rhs); + const int __wk = (__wdu >= 0 ? __wdu : __wdu-6) / 7; + return days{__wdu - __wk * 7}; +} + +inline constexpr weekday& weekday::operator+=(const days& __dd) noexcept +{ *this = *this + __dd; return *this; } + +inline constexpr weekday& weekday::operator-=(const days& __dd) noexcept +{ *this = *this - __dd; return *this; } + + +class _LIBCPP_TYPE_VIS weekday_indexed { +private: + _VSTD::chrono::weekday __wd; + unsigned char __idx; +public: + weekday_indexed() = default; + inline constexpr weekday_indexed(const _VSTD::chrono::weekday& __wdval, unsigned __idxval) noexcept + : __wd{__wdval}, __idx(__idxval) {} + inline constexpr _VSTD::chrono::weekday weekday() const noexcept { return __wd; } + inline constexpr unsigned index() const noexcept { return __idx; } + inline constexpr bool ok() const noexcept { return __wd.ok() && __idx >= 1 && __idx <= 5; } +}; + +inline constexpr +bool operator==(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept +{ return __lhs.weekday() == __rhs.weekday() && __lhs.index() == __rhs.index(); } + +inline constexpr +bool operator!=(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept +{ return !(__lhs == __rhs); } + + +class _LIBCPP_TYPE_VIS weekday_last { +private: + _VSTD::chrono::weekday __wd; +public: + explicit constexpr weekday_last(const _VSTD::chrono::weekday& __val) noexcept + : __wd{__val} {} + constexpr _VSTD::chrono::weekday weekday() const noexcept { return __wd; } + constexpr bool ok() const noexcept { return __wd.ok(); } +}; + +inline constexpr +bool operator==(const weekday_last& __lhs, const weekday_last& __rhs) noexcept +{ return __lhs.weekday() == __rhs.weekday(); } + +inline constexpr +bool operator!=(const weekday_last& __lhs, const weekday_last& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +weekday_indexed weekday::operator[](unsigned __index) const noexcept { return weekday_indexed{*this, __index}; } + +inline constexpr +weekday_last weekday::operator[](last_spec) const noexcept { return weekday_last{*this}; } + + +inline constexpr last_spec last{}; +inline constexpr weekday Sunday{0}; +inline constexpr weekday Monday{1}; +inline constexpr weekday Tuesday{2}; +inline constexpr weekday Wednesday{3}; +inline constexpr weekday Thursday{4}; +inline constexpr weekday Friday{5}; +inline constexpr weekday Saturday{6}; + +inline constexpr month January{1}; +inline constexpr month February{2}; +inline constexpr month March{3}; +inline constexpr month April{4}; +inline constexpr month May{5}; +inline constexpr month June{6}; +inline constexpr month July{7}; +inline constexpr month August{8}; +inline constexpr month September{9}; +inline constexpr month October{10}; +inline constexpr month November{11}; +inline constexpr month December{12}; + + +class _LIBCPP_TYPE_VIS month_day { +private: + chrono::month __m; + chrono::day __d; +public: + month_day() = default; + constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept + : __m{__mval}, __d{__dval} {} + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr chrono::day day() const noexcept { return __d; } + constexpr bool ok() const noexcept; +}; + +inline constexpr +bool month_day::ok() const noexcept +{ + if (!__m.ok()) return false; + const unsigned __dval = static_cast<unsigned>(__d); + if (__dval < 1 || __dval > 31) return false; + if (__dval <= 29) return true; +// Now we've got either 30 or 31 + const unsigned __mval = static_cast<unsigned>(__m); + if (__mval == 2) return false; + if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11) + return __dval == 30; + return true; +} + +inline constexpr +bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept +{ return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); } + +inline constexpr +bool operator!=(const month_day& __lhs, const month_day& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +month_day operator/(const month& __lhs, const day& __rhs) noexcept +{ return month_day{__lhs, __rhs}; } + +constexpr +month_day operator/(const day& __lhs, const month& __rhs) noexcept +{ return __rhs / __lhs; } + +inline constexpr +month_day operator/(const month& __lhs, int __rhs) noexcept +{ return __lhs / day(__rhs); } + +constexpr +month_day operator/(int __lhs, const day& __rhs) noexcept +{ return month(__lhs) / __rhs; } + +constexpr +month_day operator/(const day& __lhs, int __rhs) noexcept +{ return month(__rhs) / __lhs; } + + +inline constexpr +bool operator< (const month_day& __lhs, const month_day& __rhs) noexcept +{ return __lhs.month() != __rhs.month() ? __lhs.month() < __rhs.month() : __lhs.day() < __rhs.day(); } + +inline constexpr +bool operator> (const month_day& __lhs, const month_day& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const month_day& __lhs, const month_day& __rhs) noexcept +{ return !(__rhs < __lhs);} + +inline constexpr +bool operator>=(const month_day& __lhs, const month_day& __rhs) noexcept +{ return !(__lhs < __rhs); } + + + +class _LIBCPP_TYPE_VIS month_day_last { +private: + chrono::month __m; +public: + explicit constexpr month_day_last(const chrono::month& __val) noexcept + : __m{__val} {} + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr bool ok() const noexcept { return __m.ok(); } +}; + +inline constexpr +bool operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept +{ return __lhs.month() == __rhs.month(); } + +inline constexpr +bool operator!=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +bool operator< (const month_day_last& __lhs, const month_day_last& __rhs) noexcept +{ return __lhs.month() < __rhs.month(); } + +inline constexpr +bool operator> (const month_day_last& __lhs, const month_day_last& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept +{ return !(__rhs < __lhs);} + +inline constexpr +bool operator>=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept +{ return !(__lhs < __rhs); } + +inline constexpr +month_day_last operator/(const month& __lhs, last_spec) noexcept +{ return month_day_last{__lhs}; } + +inline constexpr +month_day_last operator/(last_spec, const month& __rhs) noexcept +{ return month_day_last{__rhs}; } + +inline constexpr +month_day_last operator/(int __lhs, last_spec) noexcept +{ return month_day_last{month(__lhs)}; } + +inline constexpr +month_day_last operator/(last_spec, int __rhs) noexcept +{ return month_day_last{month(__rhs)}; } + + +class _LIBCPP_TYPE_VIS month_weekday { +private: + chrono::month __m; + chrono::weekday_indexed __wdi; +public: + month_weekday() = default; + constexpr month_weekday(const chrono::month& __mval, const chrono::weekday_indexed& __wdival) noexcept + : __m{__mval}, __wdi{__wdival} {} + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; } + inline constexpr bool ok() const noexcept { return __m.ok() && __wdi.ok(); } +}; + +inline constexpr +bool operator==(const month_weekday& __lhs, const month_weekday& __rhs) noexcept +{ return __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); } + +inline constexpr +bool operator!=(const month_weekday& __lhs, const month_weekday& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +month_weekday operator/(const month& __lhs, const weekday_indexed& __rhs) noexcept +{ return month_weekday{__lhs, __rhs}; } + +inline constexpr +month_weekday operator/(int __lhs, const weekday_indexed& __rhs) noexcept +{ return month_weekday{month(__lhs), __rhs}; } + +inline constexpr +month_weekday operator/(const weekday_indexed& __lhs, const month& __rhs) noexcept +{ return month_weekday{__rhs, __lhs}; } + +inline constexpr +month_weekday operator/(const weekday_indexed& __lhs, int __rhs) noexcept +{ return month_weekday{month(__rhs), __lhs}; } + + +class _LIBCPP_TYPE_VIS month_weekday_last { + chrono::month __m; + chrono::weekday_last __wdl; + public: + constexpr month_weekday_last(const chrono::month& __mval, const chrono::weekday_last& __wdlval) noexcept + : __m{__mval}, __wdl{__wdlval} {} + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; } + inline constexpr bool ok() const noexcept { return __m.ok() && __wdl.ok(); } +}; + +inline constexpr +bool operator==(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept +{ return __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); } + +inline constexpr +bool operator!=(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept +{ return !(__lhs == __rhs); } + + +inline constexpr +month_weekday_last operator/(const month& __lhs, const weekday_last& __rhs) noexcept +{ return month_weekday_last{__lhs, __rhs}; } + +inline constexpr +month_weekday_last operator/(int __lhs, const weekday_last& __rhs) noexcept +{ return month_weekday_last{month(__lhs), __rhs}; } + +inline constexpr +month_weekday_last operator/(const weekday_last& __lhs, const month& __rhs) noexcept +{ return month_weekday_last{__rhs, __lhs}; } + +inline constexpr +month_weekday_last operator/(const weekday_last& __lhs, int __rhs) noexcept +{ return month_weekday_last{month(__rhs), __lhs}; } + + +class _LIBCPP_TYPE_VIS year_month { + chrono::year __y; + chrono::month __m; +public: + year_month() = default; + constexpr year_month(const chrono::year& __yval, const chrono::month& __mval) noexcept + : __y{__yval}, __m{__mval} {} + inline constexpr chrono::year year() const noexcept { return __y; } + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr year_month& operator+=(const months& __dm) noexcept { this->__m += __dm; return *this; } + inline constexpr year_month& operator-=(const months& __dm) noexcept { this->__m -= __dm; return *this; } + inline constexpr year_month& operator+=(const years& __dy) noexcept { this->__y += __dy; return *this; } + inline constexpr year_month& operator-=(const years& __dy) noexcept { this->__y -= __dy; return *this; } + inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok(); } +}; + +inline constexpr +year_month operator/(const year& __y, const month& __m) noexcept { return year_month{__y, __m}; } + +inline constexpr +year_month operator/(const year& __y, int __m) noexcept { return year_month{__y, month(__m)}; } + +inline constexpr +bool operator==(const year_month& __lhs, const year_month& __rhs) noexcept +{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month(); } + +inline constexpr +bool operator!=(const year_month& __lhs, const year_month& __rhs) noexcept +{ return !(__lhs == __rhs); } + +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(); } + +inline constexpr +bool operator> (const year_month& __lhs, const year_month& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const year_month& __lhs, const year_month& __rhs) noexcept +{ return !(__rhs < __lhs);} + +inline constexpr +bool operator>=(const year_month& __lhs, const year_month& __rhs) noexcept +{ return !(__lhs < __rhs); } + +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)); +} + +constexpr year_month operator+(const months& __lhs, const year_month& __rhs) noexcept +{ return __rhs + __lhs; } + +constexpr year_month operator+(const year_month& __lhs, const years& __rhs) noexcept +{ return (__lhs.year() + __rhs) / __lhs.month(); } + +constexpr year_month operator+(const years& __lhs, const year_month& __rhs) noexcept +{ return __rhs + __lhs; } + +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())); } + +constexpr year_month operator-(const year_month& __lhs, const months& __rhs) noexcept +{ return __lhs + -__rhs; } + +constexpr year_month operator-(const year_month& __lhs, const years& __rhs) noexcept +{ return __lhs + -__rhs; } + +class year_month_day_last; + +class _LIBCPP_TYPE_VIS year_month_day { +private: + chrono::year __y; + chrono::month __m; + chrono::day __d; +public: + year_month_day() = default; + inline constexpr year_month_day( + const chrono::year& __yval, const chrono::month& __mval, const chrono::day& __dval) noexcept + : __y{__yval}, __m{__mval}, __d{__dval} {} + constexpr year_month_day(const year_month_day_last& __ymdl) noexcept; + inline constexpr year_month_day(const sys_days& __sysd) noexcept + : year_month_day(__from_days(__sysd.time_since_epoch())) {} + inline explicit constexpr year_month_day(const local_days& __locd) noexcept + : year_month_day(__from_days(__locd.time_since_epoch())) {} + + constexpr year_month_day& operator+=(const months& __dm) noexcept; + constexpr year_month_day& operator-=(const months& __dm) noexcept; + constexpr year_month_day& operator+=(const years& __dy) noexcept; + constexpr year_month_day& operator-=(const years& __dy) noexcept; + + inline constexpr chrono::year year() const noexcept { return __y; } + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr chrono::day day() const noexcept { return __d; } + inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } + inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } + + constexpr bool ok() const noexcept; + + static constexpr year_month_day __from_days(days __d) noexcept; + constexpr days __to_days() const noexcept; +}; + + +// https://howardhinnant.github.io/date_algorithms.html#civil_from_days +inline constexpr +year_month_day +year_month_day::__from_days(days __d) noexcept +{ + static_assert(std::numeric_limits<unsigned>::digits >= 18, ""); + static_assert(std::numeric_limits<int>::digits >= 20 , ""); + const int __z = __d.count() + 719468; + const int __era = (__z >= 0 ? __z : __z - 146096) / 146097; + const unsigned __doe = static_cast<unsigned>(__z - __era * 146097); // [0, 146096] + const unsigned __yoe = (__doe - __doe/1460 + __doe/36524 - __doe/146096) / 365; // [0, 399] + const int __yr = static_cast<int>(__yoe) + __era * 400; + const unsigned __doy = __doe - (365 * __yoe + __yoe/4 - __yoe/100); // [0, 365] + const unsigned __mp = (5 * __doy + 2)/153; // [0, 11] + const unsigned __dy = __doy - (153 * __mp + 2)/5 + 1; // [1, 31] + const unsigned __mth = __mp + (__mp < 10 ? 3 : -9); // [1, 12] + return year_month_day{chrono::year{__yr + (__mth <= 2)}, chrono::month{__mth}, chrono::day{__dy}}; +} + +// https://howardhinnant.github.io/date_algorithms.html#days_from_civil +inline constexpr days year_month_day::__to_days() const noexcept +{ + static_assert(std::numeric_limits<unsigned>::digits >= 18, ""); + static_assert(std::numeric_limits<int>::digits >= 20 , ""); + + const int __yr = static_cast<int>(__y) - (__m <= February); + const unsigned __mth = static_cast<unsigned>(__m); + const unsigned __dy = static_cast<unsigned>(__d); + + const int __era = (__yr >= 0 ? __yr : __yr - 399) / 400; + const unsigned __yoe = static_cast<unsigned>(__yr - __era * 400); // [0, 399] + const unsigned __doy = (153 * (__mth + (__mth > 2 ? -3 : 9)) + 2) / 5 + __dy-1; // [0, 365] + const unsigned __doe = __yoe * 365 + __yoe/4 - __yoe/100 + __doy; // [0, 146096] + return days{__era * 146097 + static_cast<int>(__doe) - 719468}; +} + +inline constexpr +bool operator==(const year_month_day& __lhs, const year_month_day& __rhs) noexcept +{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); } + +inline constexpr +bool operator!=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +bool operator< (const year_month_day& __lhs, const year_month_day& __rhs) noexcept +{ + if (__lhs.year() < __rhs.year()) return true; + if (__lhs.year() > __rhs.year()) return false; + if (__lhs.month() < __rhs.month()) return true; + if (__lhs.month() > __rhs.month()) return false; + return __lhs.day() < __rhs.day(); +} + +inline constexpr +bool operator> (const year_month_day& __lhs, const year_month_day& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept +{ return !(__rhs < __lhs);} + +inline constexpr +bool operator>=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept +{ return !(__lhs < __rhs); } + +inline constexpr +year_month_day operator/(const year_month& __lhs, const day& __rhs) noexcept +{ return year_month_day{__lhs.year(), __lhs.month(), __rhs}; } + +inline constexpr +year_month_day operator/(const year_month& __lhs, int __rhs) noexcept +{ return __lhs / day(__rhs); } + +inline constexpr +year_month_day operator/(const year& __lhs, const month_day& __rhs) noexcept +{ return __lhs / __rhs.month() / __rhs.day(); } + +inline constexpr +year_month_day operator/(int __lhs, const month_day& __rhs) noexcept +{ return year(__lhs) / __rhs; } + +inline constexpr +year_month_day operator/(const month_day& __lhs, const year& __rhs) noexcept +{ return __rhs / __lhs; } + +inline constexpr +year_month_day operator/(const month_day& __lhs, int __rhs) noexcept +{ return year(__rhs) / __lhs; } + + +inline constexpr +year_month_day operator+(const year_month_day& __lhs, const months& __rhs) noexcept +{ return (__lhs.year()/__lhs.month() + __rhs)/__lhs.day(); } + +inline constexpr +year_month_day operator+(const months& __lhs, const year_month_day& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_day operator-(const year_month_day& __lhs, const months& __rhs) noexcept +{ return __lhs + -__rhs; } + +inline constexpr +year_month_day operator+(const year_month_day& __lhs, const years& __rhs) noexcept +{ return (__lhs.year() + __rhs) / __lhs.month() / __lhs.day(); } + +inline constexpr +year_month_day operator+(const years& __lhs, const year_month_day& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_day operator-(const year_month_day& __lhs, const years& __rhs) noexcept +{ return __lhs + -__rhs; } + +inline constexpr year_month_day& year_month_day::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } +inline constexpr year_month_day& year_month_day::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } +inline constexpr year_month_day& year_month_day::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } +inline constexpr year_month_day& year_month_day::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } + +class _LIBCPP_TYPE_VIS year_month_day_last { +private: + chrono::year __y; + chrono::month_day_last __mdl; +public: + constexpr year_month_day_last(const year& __yval, const month_day_last& __mdlval) noexcept + : __y{__yval}, __mdl{__mdlval} {} + + constexpr year_month_day_last& operator+=(const months& __m) noexcept; + constexpr year_month_day_last& operator-=(const months& __m) noexcept; + constexpr year_month_day_last& operator+=(const years& __y) noexcept; + constexpr year_month_day_last& operator-=(const years& __y) noexcept; + + inline constexpr chrono::year year() const noexcept { return __y; } + inline constexpr chrono::month month() const noexcept { return __mdl.month(); } + inline constexpr chrono::month_day_last month_day_last() const noexcept { return __mdl; } + constexpr chrono::day day() const noexcept; + inline constexpr operator sys_days() const noexcept { return sys_days{year()/month()/day()}; } + inline explicit constexpr operator local_days() const noexcept { return local_days{year()/month()/day()}; } + inline constexpr bool ok() const noexcept { return __y.ok() && __mdl.ok(); } +}; + +inline constexpr +chrono::day year_month_day_last::day() const noexcept +{ + constexpr chrono::day __d[] = + { + chrono::day(31), chrono::day(28), chrono::day(31), + chrono::day(30), chrono::day(31), chrono::day(30), + chrono::day(31), chrono::day(31), chrono::day(30), + chrono::day(31), chrono::day(30), chrono::day(31) + }; + return month() != February || !__y.is_leap() ? + __d[static_cast<unsigned>(month()) - 1] : chrono::day{29}; +} + +inline constexpr +bool operator==(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept +{ return __lhs.year() == __rhs.year() && __lhs.month_day_last() == __rhs.month_day_last(); } + +inline constexpr +bool operator!=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +bool operator< (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept +{ + if (__lhs.year() < __rhs.year()) return true; + if (__lhs.year() > __rhs.year()) return false; + return __lhs.month_day_last() < __rhs.month_day_last(); +} + +inline constexpr +bool operator> (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept +{ return __rhs < __lhs; } + +inline constexpr +bool operator<=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept +{ return !(__rhs < __lhs);} + +inline constexpr +bool operator>=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept +{ return !(__lhs < __rhs); } + +inline constexpr year_month_day_last operator/(const year_month& __lhs, last_spec) noexcept +{ return year_month_day_last{__lhs.year(), month_day_last{__lhs.month()}}; } + +inline constexpr year_month_day_last operator/(const year& __lhs, const month_day_last& __rhs) noexcept +{ return year_month_day_last{__lhs, __rhs}; } + +inline constexpr year_month_day_last operator/(int __lhs, const month_day_last& __rhs) noexcept +{ return year_month_day_last{year{__lhs}, __rhs}; } + +inline constexpr year_month_day_last operator/(const month_day_last& __lhs, const year& __rhs) noexcept +{ return __rhs / __lhs; } + +inline constexpr year_month_day_last operator/(const month_day_last& __lhs, int __rhs) noexcept +{ return year{__rhs} / __lhs; } + + +inline constexpr +year_month_day_last operator+(const year_month_day_last& __lhs, const months& __rhs) noexcept +{ return (__lhs.year() / __lhs.month() + __rhs) / last; } + +inline constexpr +year_month_day_last operator+(const months& __lhs, const year_month_day_last& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_day_last operator-(const year_month_day_last& __lhs, const months& __rhs) noexcept +{ return __lhs + (-__rhs); } + +inline constexpr +year_month_day_last operator+(const year_month_day_last& __lhs, const years& __rhs) noexcept +{ return year_month_day_last{__lhs.year() + __rhs, __lhs.month_day_last()}; } + +inline constexpr +year_month_day_last operator+(const years& __lhs, const year_month_day_last& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_day_last operator-(const year_month_day_last& __lhs, const years& __rhs) noexcept +{ return __lhs + (-__rhs); } + +inline constexpr year_month_day_last& year_month_day_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } +inline constexpr year_month_day_last& year_month_day_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } +inline constexpr year_month_day_last& year_month_day_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } +inline constexpr year_month_day_last& year_month_day_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } + +inline constexpr year_month_day::year_month_day(const year_month_day_last& __ymdl) noexcept + : __y{__ymdl.year()}, __m{__ymdl.month()}, __d{__ymdl.day()} {} + +inline constexpr bool year_month_day::ok() const noexcept +{ + if (!__y.ok() || !__m.ok()) return false; + return chrono::day{1} <= __d && __d <= (__y / __m / last).day(); +} + +class _LIBCPP_TYPE_VIS year_month_weekday { + chrono::year __y; + chrono::month __m; + chrono::weekday_indexed __wdi; +public: + year_month_weekday() = default; + constexpr year_month_weekday(const chrono::year& __yval, const chrono::month& __mval, + const chrono::weekday_indexed& __wdival) noexcept + : __y{__yval}, __m{__mval}, __wdi{__wdival} {} + constexpr year_month_weekday(const sys_days& __sysd) noexcept + : year_month_weekday(__from_days(__sysd.time_since_epoch())) {} + inline explicit constexpr year_month_weekday(const local_days& __locd) noexcept + : year_month_weekday(__from_days(__locd.time_since_epoch())) {} + constexpr year_month_weekday& operator+=(const months& m) noexcept; + constexpr year_month_weekday& operator-=(const months& m) noexcept; + constexpr year_month_weekday& operator+=(const years& y) noexcept; + constexpr year_month_weekday& operator-=(const years& y) noexcept; + + inline constexpr chrono::year year() const noexcept { return __y; } + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr chrono::weekday weekday() const noexcept { return __wdi.weekday(); } + inline constexpr unsigned index() const noexcept { return __wdi.index(); } + inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; } + + inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } + inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } + inline constexpr bool ok() const noexcept + { + if (!__y.ok() || !__m.ok() || !__wdi.ok()) return false; + // TODO: make sure it's a valid date + return true; + } + + static constexpr year_month_weekday __from_days(days __d) noexcept; + constexpr days __to_days() const noexcept; +}; + +inline constexpr +year_month_weekday year_month_weekday::__from_days(days __d) noexcept +{ + const sys_days __sysd{__d}; + const chrono::weekday __wd = chrono::weekday(__sysd); + const year_month_day __ymd = year_month_day(__sysd); + return year_month_weekday{__ymd.year(), __ymd.month(), + __wd[(static_cast<unsigned>(__ymd.day())-1)/7+1]}; +} + +inline constexpr +days year_month_weekday::__to_days() const noexcept +{ + const sys_days __sysd = sys_days(__y/__m/1); + return (__sysd + (__wdi.weekday() - chrono::weekday(__sysd) + days{(__wdi.index()-1)*7})) + .time_since_epoch(); +} + +inline constexpr +bool operator==(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept +{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); } + +inline constexpr +bool operator!=(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept +{ return !(__lhs == __rhs); } + +inline constexpr +year_month_weekday operator/(const year_month& __lhs, const weekday_indexed& __rhs) noexcept +{ return year_month_weekday{__lhs.year(), __lhs.month(), __rhs}; } + +inline constexpr +year_month_weekday operator/(const year& __lhs, const month_weekday& __rhs) noexcept +{ return year_month_weekday{__lhs, __rhs.month(), __rhs.weekday_indexed()}; } + +inline constexpr +year_month_weekday operator/(int __lhs, const month_weekday& __rhs) noexcept +{ return year(__lhs) / __rhs; } + +inline constexpr +year_month_weekday operator/(const month_weekday& __lhs, const year& __rhs) noexcept +{ return __rhs / __lhs; } + +inline constexpr +year_month_weekday operator/(const month_weekday& __lhs, int __rhs) noexcept +{ return year(__rhs) / __lhs; } + + +inline constexpr +year_month_weekday operator+(const year_month_weekday& __lhs, const months& __rhs) noexcept +{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_indexed(); } + +inline constexpr +year_month_weekday operator+(const months& __lhs, const year_month_weekday& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_weekday operator-(const year_month_weekday& __lhs, const months& __rhs) noexcept +{ return __lhs + (-__rhs); } + +inline constexpr +year_month_weekday operator+(const year_month_weekday& __lhs, const years& __rhs) noexcept +{ return year_month_weekday{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_indexed()}; } + +inline constexpr +year_month_weekday operator+(const years& __lhs, const year_month_weekday& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_weekday operator-(const year_month_weekday& __lhs, const years& __rhs) noexcept +{ return __lhs + (-__rhs); } + + +inline constexpr year_month_weekday& year_month_weekday::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } +inline constexpr year_month_weekday& year_month_weekday::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } +inline constexpr year_month_weekday& year_month_weekday::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } +inline constexpr year_month_weekday& year_month_weekday::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } + +class _LIBCPP_TYPE_VIS year_month_weekday_last { +private: + chrono::year __y; + chrono::month __m; + chrono::weekday_last __wdl; +public: + constexpr year_month_weekday_last(const chrono::year& __yval, const chrono::month& __mval, + const chrono::weekday_last& __wdlval) noexcept + : __y{__yval}, __m{__mval}, __wdl{__wdlval} {} + constexpr year_month_weekday_last& operator+=(const months& __dm) noexcept; + constexpr year_month_weekday_last& operator-=(const months& __dm) noexcept; + constexpr year_month_weekday_last& operator+=(const years& __dy) noexcept; + constexpr year_month_weekday_last& operator-=(const years& __dy) noexcept; + + inline constexpr chrono::year year() const noexcept { return __y; } + inline constexpr chrono::month month() const noexcept { return __m; } + inline constexpr chrono::weekday weekday() const noexcept { return __wdl.weekday(); } + inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; } + inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } + inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } + inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok() && __wdl.ok(); } + + constexpr days __to_days() const noexcept; + +}; + +inline constexpr +days year_month_weekday_last::__to_days() const noexcept +{ + const sys_days __last = sys_days{__y/__m/last}; + return (__last - (chrono::weekday{__last} - __wdl.weekday())).time_since_epoch(); + +} + +inline constexpr +bool operator==(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept +{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); } + +inline constexpr +bool operator!=(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept +{ return !(__lhs == __rhs); } + + +inline constexpr +year_month_weekday_last operator/(const year_month& __lhs, const weekday_last& __rhs) noexcept +{ return year_month_weekday_last{__lhs.year(), __lhs.month(), __rhs}; } + +inline constexpr +year_month_weekday_last operator/(const year& __lhs, const month_weekday_last& __rhs) noexcept +{ return year_month_weekday_last{__lhs, __rhs.month(), __rhs.weekday_last()}; } + +inline constexpr +year_month_weekday_last operator/(int __lhs, const month_weekday_last& __rhs) noexcept +{ return year(__lhs) / __rhs; } + +inline constexpr +year_month_weekday_last operator/(const month_weekday_last& __lhs, const year& __rhs) noexcept +{ return __rhs / __lhs; } + +inline constexpr +year_month_weekday_last operator/(const month_weekday_last& __lhs, int __rhs) noexcept +{ return year(__rhs) / __lhs; } + + +inline constexpr +year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const months& __rhs) noexcept +{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_last(); } + +inline constexpr +year_month_weekday_last operator+(const months& __lhs, const year_month_weekday_last& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const months& __rhs) noexcept +{ return __lhs + (-__rhs); } + +inline constexpr +year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const years& __rhs) noexcept +{ return year_month_weekday_last{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_last()}; } + +inline constexpr +year_month_weekday_last operator+(const years& __lhs, const year_month_weekday_last& __rhs) noexcept +{ return __rhs + __lhs; } + +inline constexpr +year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const years& __rhs) noexcept +{ return __lhs + (-__rhs); } + +inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } +inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } +inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } +inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } + +#endif // _LIBCPP_STD_VER > 17 +} // chrono + +#if _LIBCPP_STD_VER > 11 +// Suffixes for duration literals [time.duration.literals] +inline namespace literals +{ + inline namespace chrono_literals + { + + constexpr chrono::hours operator""h(unsigned long long __h) + { + return chrono::hours(static_cast<chrono::hours::rep>(__h)); + } + + constexpr chrono::duration<long double, ratio<3600,1>> operator""h(long double __h) + { + return chrono::duration<long double, ratio<3600,1>>(__h); + } + + + constexpr chrono::minutes operator""min(unsigned long long __m) + { + return chrono::minutes(static_cast<chrono::minutes::rep>(__m)); + } + + constexpr chrono::duration<long double, ratio<60,1>> operator""min(long double __m) + { + return chrono::duration<long double, ratio<60,1>> (__m); + } + + + constexpr chrono::seconds operator""s(unsigned long long __s) + { + return chrono::seconds(static_cast<chrono::seconds::rep>(__s)); + } + + constexpr chrono::duration<long double> operator""s(long double __s) + { + return chrono::duration<long double> (__s); + } + + + constexpr chrono::milliseconds operator""ms(unsigned long long __ms) + { + return chrono::milliseconds(static_cast<chrono::milliseconds::rep>(__ms)); + } + + constexpr chrono::duration<long double, milli> operator""ms(long double __ms) + { + return chrono::duration<long double, milli>(__ms); + } + + + constexpr chrono::microseconds operator""us(unsigned long long __us) + { + return chrono::microseconds(static_cast<chrono::microseconds::rep>(__us)); + } + + constexpr chrono::duration<long double, micro> operator""us(long double __us) + { + return chrono::duration<long double, micro> (__us); + } + + + constexpr chrono::nanoseconds operator""ns(unsigned long long __ns) + { + return chrono::nanoseconds(static_cast<chrono::nanoseconds::rep>(__ns)); + } + + constexpr chrono::duration<long double, nano> operator""ns(long double __ns) + { + return chrono::duration<long double, nano> (__ns); + } + +#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX20_CHRONO_LITERALS) + constexpr chrono::day operator ""d(unsigned long long __d) noexcept + { + return chrono::day(static_cast<unsigned>(__d)); + } + + constexpr chrono::year operator ""y(unsigned long long __y) noexcept + { + return chrono::year(static_cast<int>(__y)); + } +#endif +}} + +namespace chrono { // hoist the literals into namespace std::chrono + using namespace literals::chrono_literals; +} + +#endif + +_LIBCPP_END_NAMESPACE_STD + +#ifndef _LIBCPP_CXX03_LANG +_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM +struct _FilesystemClock { +#if !defined(_LIBCPP_HAS_NO_INT128) + typedef __int128_t rep; + typedef nano period; +#else + typedef long long rep; + typedef nano period; +#endif + + typedef chrono::duration<rep, period> duration; + typedef chrono::time_point<_FilesystemClock> time_point; + + static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false; + + _LIBCPP_FUNC_VIS static time_point now() noexcept; + + _LIBCPP_INLINE_VISIBILITY + static time_t to_time_t(const time_point& __t) noexcept { + typedef chrono::duration<rep> __secs; + return time_t( + chrono::duration_cast<__secs>(__t.time_since_epoch()).count()); + } + + _LIBCPP_INLINE_VISIBILITY + static time_point from_time_t(time_t __t) noexcept { + typedef chrono::duration<rep> __secs; + return time_point(__secs(__t)); + } +}; +_LIBCPP_END_NAMESPACE_FILESYSTEM +#endif // !_LIBCPP_CXX03_LANG + +_LIBCPP_POP_MACROS + +#endif // _LIBCPP_CHRONO |