// -*- C++ -*- //===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef _LIBCPP_CHRONO #define _LIBCPP_CHRONO // clang-format off /* chrono synopsis #include <compare> // C++20 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<const 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 { // 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); // removed in C++20 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> requires three_way_comparable<typename CT::rep> constexpr auto operator<=>(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); // since C++20 // 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 template<class charT, class traits, class Rep, class Period> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const duration<Rep, Period>& d); // 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); // removed in C++20 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, three_way_comparable_with<Duration1> Duration2> constexpr auto operator<=>(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); // since C++20 // 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 template<class charT, class traits, class Duration> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const sys_time<Duration>& tp); template<class charT, class traits> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const sys_days& dp); class file_clock // C++20 { public: typedef see-below rep; typedef nano period; typedef chrono::duration<rep, period> duration; typedef chrono::time_point<file_clock> time_point; static constexpr bool is_steady = false; static time_point now() noexcept; template<class Duration> static sys_time<see-below> to_sys(const file_time<Duration>&); template<class Duration> static file_time<see-below> from_sys(const sys_time<Duration>&); }; template<class Duration> using file_time = time_point<file_clock, Duration>; // C++20 template<class charT, class traits, class Duration> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const file_time<Duration>& tp); 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>; template<class charT, class traits, class Duration> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const local_time<Duration>& tp); // 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 strong_ordering 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const day& d); // 25.8.4, class month // C++20 class month; constexpr bool operator==(const month& x, const month& y) noexcept; constexpr strong_ordering 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const month& m); // 25.8.5, class year // C++20 class year; constexpr bool operator==(const year& x, const year& y) noexcept; constexpr strong_ordering 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const year& y); // 25.8.6, class weekday // C++20 class weekday; 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const weekday& wd); // 25.8.7, class weekday_indexed // C++20 class weekday_indexed; constexpr bool operator==(const weekday_indexed& x, const weekday_indexed& y) noexcept; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const weekday_indexed& wdi); // 25.8.8, class weekday_last // C++20 class weekday_last; constexpr bool operator==(const weekday_last& x, const weekday_last& y) noexcept; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const weekday_last& wdl); // 25.8.9, class month_day // C++20 class month_day; constexpr bool operator==(const month_day& x, const month_day& y) noexcept; constexpr strong_ordering operator<=>(const month_day& x, const month_day& y) noexcept; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const month_day& md); // 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 strong_ordering operator<=>(const month_day_last& x, const month_day_last& y) noexcept; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const month_day_last& mdl); // 25.8.11, class month_weekday // C++20 class month_weekday; constexpr bool operator==(const month_weekday& x, const month_weekday& y) noexcept; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const month_weekday& mwd); // 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const month_weekday_last& mwdl); // 25.8.13, class year_month // C++20 class year_month; constexpr bool operator==(const year_month& x, const year_month& y) noexcept; constexpr strong_ordering 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const year_month& ym); // 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 strong_ordering 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const year_month_day& ymd); // 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 strong_ordering operator<=>(const year_month_day_last_day& x, const year_month_day_last_day& 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const year_month_day_last& ymdl); // 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 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const year_month_weekday& ymwd); // 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 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; template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const year_month_weekday_last& ymwdl); // 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; // 26.9, class template hh_mm_ss template <class Duration> class hh_mm_ss { bool is_neg; // exposition only chrono::hours h; // exposition only chrono::minutes m; // exposition only chrono::seconds s; // exposition only precision ss; // exposition only public: static unsigned constexpr fractional_width = see below; using precision = see below; constexpr hh_mm_ss() noexcept : hh_mm_ss{Duration::zero()} {} constexpr explicit hh_mm_ss(Duration d) noexcept; constexpr bool is_negative() const noexcept; constexpr chrono::hours hours() const noexcept; constexpr chrono::minutes minutes() const noexcept; constexpr chrono::seconds seconds() const noexcept; constexpr precision subseconds() const noexcept; constexpr explicit operator precision() const noexcept; constexpr precision to_duration() const noexcept; }; template<class charT, class traits, class Duration> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const hh_mm_ss<Duration>& hms); // C++20 // 26.10, 12/24 hour functions constexpr bool is_am(hours const& h) noexcept; constexpr bool is_pm(hours const& h) noexcept; constexpr hours make12(const hours& h) noexcept; constexpr hours make24(const hours& h, bool is_pm) noexcept; // [time.zone.db], time zone database struct tzdb { // C++20 string version; vector<time_zone> zones; vector<time_zone_link> links; vector<leap_second> leap_seconds; const time_zone* locate_zone(string_view tz_name) const; const time_zone* current_zone() const; }; class tzdb_list { // C++20 public: tzdb_list(const tzdb_list&) = delete; tzdb_list& operator=(const tzdb_list&) = delete; // unspecified additional constructors class const_iterator; const tzdb& front() const noexcept; const_iterator erase_after(const_iterator p); const_iterator begin() const noexcept; const_iterator end() const noexcept; const_iterator cbegin() const noexcept; const_iterator cend() const noexcept; }; // [time.zone.db.access], time zone database access const tzdb& get_tzdb(); // C++20 tzdb_list& get_tzdb_list(); // C++20 const time_zone* locate_zone(string_view tz_name); // C++20 const time_zone* current_zone() // C++20 // [time.zone.db.remote], remote time zone database support const tzdb& reload_tzdb(); // C++20 string remote_version(); // C++20 // [time.zone.exception], exception classes class nonexistent_local_time; // C++20 class ambiguous_local_time; // C++20 // [time.zone.info], information classes struct sys_info { // C++20 sys_seconds begin; sys_seconds end; seconds offset; minutes save; string abbrev; }; template<class charT, class traits> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const sys_info& si); struct local_info { // C++20 static constexpr int unique = 0; static constexpr int nonexistent = 1; static constexpr int ambiguous = 2; int result; sys_info first; sys_info second; }; template<class charT, class traits> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const local_info& li); // 25.10.5, class time_zone // C++20 enum class choose {earliest, latest}; class time_zone { time_zone(time_zone&&) = default; time_zone& operator=(time_zone&&) = default; // unspecified additional constructors string_view name() const noexcept; template<class Duration> sys_info get_info(const sys_time<Duration>& st) const; template<class Duration> local_info get_info(const local_time<Duration>& tp) const; template<class Duration> sys_time<common_type_t<Duration, seconds>> to_sys(const local_time<Duration>& tp) const; template<class Duration> sys_time<common_type_t<Duration, seconds>> to_sys(const local_time<Duration>& tp, choose z) const; template<class Duration> local_time<common_type_t<Duration, seconds>> to_local(const sys_time<Duration>& tp) const; }; bool operator==(const time_zone& x, const time_zone& y) noexcept; // C++20 strong_ordering operator<=>(const time_zone& x, const time_zone& y) noexcept; // C++20 // [time.zone.zonedtraits], class template zoned_traits template<class T> struct zoned_traits; // C++20 // [time.zone.zonedtime], class template zoned_time template<class Duration, class TimeZonePtr = const time_zone*> // C++20 class zoned_time; using zoned_seconds = zoned_time<seconds>; // C++20 template<class Duration1, class Duration2, class TimeZonePtr> // C++20 bool operator==(const zoned_time<Duration1, TimeZonePtr>& x, const zoned_time<Duration2, TimeZonePtr>& y); template<class charT, class traits, class Duration, class TimeZonePtr> // C++20 basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const zoned_time<Duration, TimeZonePtr>& t); // [time.zone.leap], leap second support class leap_second { // C++20 public: leap_second(const leap_second&) = default; leap_second& operator=(const leap_second&) = default; // unspecified additional constructors constexpr sys_seconds date() const noexcept; constexpr seconds value() const noexcept; }; constexpr bool operator==(const leap_second& x, const leap_second& y); // C++20 constexpr strong_ordering operator<=>(const leap_second& x, const leap_second& y); template<class Duration> // C++20 constexpr bool operator==(const leap_second& x, const sys_time<Duration>& y); template<class Duration> // C++20 constexpr bool operator< (const leap_second& x, const sys_time<Duration>& y); template<class Duration> // C++20 constexpr bool operator< (const sys_time<Duration>& x, const leap_second& y); template<class Duration> // C++20 constexpr bool operator> (const leap_second& x, const sys_time<Duration>& y); template<class Duration> // C++20 constexpr bool operator> (const sys_time<Duration>& x, const leap_second& y); template<class Duration> // C++20 constexpr bool operator<=(const leap_second& x, const sys_time<Duration>& y); template<class Duration> // C++20 constexpr bool operator<=(const sys_time<Duration>& x, const leap_second& y); template<class Duration> // C++20 constexpr bool operator>=(const leap_second& x, const sys_time<Duration>& y); template<class Duration> // C++20 constexpr bool operator>=(const sys_time<Duration>& x, const leap_second& y); template<class Duration> // C++20 requires three_way_comparable_with<sys_seconds, sys_time<Duration>> constexpr auto operator<=>(const leap_second& x, const sys_time<Duration>& y); // [time.zone.link], class time_zone_link class time_zone_link { // C++20 public: time_zone_link(time_zone_link&&) = default; time_zone_link& operator=(time_zone_link&&) = default; // unspecified additional constructors string_view name() const noexcept; string_view target() const noexcept; }; bool operator==(const time_zone_link& x, const time_zone_link& y); // C++20 strong_ordering operator<=>(const time_zone_link& x, const time_zone_link& y); // C++20 } // chrono namespace std { template<class Duration, class charT> struct formatter<chrono::sys_time<Duration>, charT>; // C++20 template<class Duration, class charT> struct formatter<chrono::filetime<Duration>, charT>; // C++20 template<class Duration, class charT> struct formatter<chrono::local_time<Duration>, charT>; // C++20 template<class Rep, class Period, class charT> struct formatter<chrono::duration<Rep, Period>, charT>; // C++20 template<class charT> struct formatter<chrono::day, charT>; // C++20 template<class charT> struct formatter<chrono::month, charT>; // C++20 template<class charT> struct formatter<chrono::year, charT>; // C++20 template<class charT> struct formatter<chrono::weekday, charT>; // C++20 template<class charT> struct formatter<chrono::weekday_indexed, charT>; // C++20 template<class charT> struct formatter<chrono::weekday_last, charT>; // C++20 template<class charT> struct formatter<chrono::month_day, charT>; // C++20 template<class charT> struct formatter<chrono::month_day_last, charT>; // C++20 template<class charT> struct formatter<chrono::month_weekday, charT>; // C++20 template<class charT> struct formatter<chrono::month_weekday_last, charT>; // C++20 template<class charT> struct formatter<chrono::year_month, charT>; // C++20 template<class charT> struct formatter<chrono::year_month_day, charT>; // C++20 template<class charT> struct formatter<chrono::year_month_day_last, charT>; // C++20 template<class charT> struct formatter<chrono::year_month_weekday, charT>; // C++20 template<class charT> struct formatter<chrono::year_month_weekday_last, charT>; // C++20 template<class Rep, class Period, class charT> struct formatter<chrono::hh_mm_ss<duration<Rep, Period>>, charT>; // C++20 template<class charT> struct formatter<chrono::sys_info, charT>; // C++20 template<class charT> struct formatter<chrono::local_info, charT>; // C++20 template<class Duration, class TimeZonePtr, class charT> // C++20 struct formatter<chrono::zoned_time<Duration, TimeZonePtr>, charT>; } // namespace std namespace chrono { // 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 */ // clang-format on #include <__config> #include <__chrono/duration.h> #include <__chrono/file_clock.h> #include <__chrono/high_resolution_clock.h> #include <__chrono/steady_clock.h> #include <__chrono/system_clock.h> #include <__chrono/time_point.h> #if _LIBCPP_STD_VER >= 20 # include <__chrono/calendar.h> # include <__chrono/day.h> # include <__chrono/exception.h> # include <__chrono/hh_mm_ss.h> # include <__chrono/literals.h> # include <__chrono/local_info.h> # include <__chrono/month.h> # include <__chrono/month_weekday.h> # include <__chrono/monthday.h> # include <__chrono/sys_info.h> # include <__chrono/weekday.h> # include <__chrono/year.h> # include <__chrono/year_month.h> # include <__chrono/year_month_day.h> # include <__chrono/year_month_weekday.h> # if !defined(_LIBCPP_HAS_NO_LOCALIZATION) # include <__chrono/formatter.h> # include <__chrono/ostream.h> # include <__chrono/parser_std_format_spec.h> # include <__chrono/statically_widen.h> # endif # if !defined(_LIBCPP_HAS_NO_TIME_ZONE_DATABASE) && !defined(_LIBCPP_HAS_NO_FILESYSTEM) && \ !defined(_LIBCPP_HAS_NO_LOCALIZATION) # include <__chrono/leap_second.h> # include <__chrono/time_zone.h> # include <__chrono/time_zone_link.h> # include <__chrono/tzdb.h> # include <__chrono/tzdb_list.h> # include <__chrono/zoned_time.h> # endif #endif #include <version> // standard-mandated includes // [time.syn] #include <compare> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) # pragma GCC system_header #endif #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 17 # include <cstdint> # include <stdexcept> # include <string_view> # include <vector> #endif #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 # include <bit> # include <concepts> # include <cstring> # include <forward_list> # include <string> # include <tuple> #endif #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER == 20 # include <charconv> # if !defined(_LIBCPP_HAS_NO_LOCALIZATION) # include <locale> # endif # include <ostream> #endif #endif // _LIBCPP_CHRONO
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