| // -*- 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_DURATION_H |
| #define _LIBCPP___CHRONO_DURATION_H |
| |
| #include <__config> |
| #include <limits> |
| #include <ratio> |
| #include <type_traits> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| _LIBCPP_PUSH_MACROS |
| #include <__undef_macros> |
| |
| _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 {}; |
| |
| } // namespace 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 |
| template <class _Rep> |
| inline 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* = nullptr) |
| : __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* = nullptr) |
| : __rep_(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 _Rep1, class _Period, class _Rep2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR |
| typename enable_if |
| < |
| !__is_duration<_Rep2>::value && |
| 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 _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 enable_if |
| < |
| !__is_duration<_Rep2>::value && |
| 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 _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())); |
| } |
| |
| } // namespace 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); |
| } |
| |
| } // namespace chrono_literals |
| } // namespace literals |
| |
| namespace chrono { // hoist the literals into namespace std::chrono |
| using namespace literals::chrono_literals; |
| } // namespace chrono |
| |
| #endif // _LIBCPP_STD_VER > 11 |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| _LIBCPP_POP_MACROS |
| |
| #endif // _LIBCPP___CHRONO_DURATION_H |