master
1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP___CHRONO_DURATION_H
11#define _LIBCPP___CHRONO_DURATION_H
12
13#include <__compare/ordering.h>
14#include <__compare/three_way_comparable.h>
15#include <__config>
16#include <__type_traits/common_type.h>
17#include <__type_traits/enable_if.h>
18#include <__type_traits/is_convertible.h>
19#include <__type_traits/is_floating_point.h>
20#include <limits>
21#include <ratio>
22
23#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
24# pragma GCC system_header
25#endif
26
27_LIBCPP_PUSH_MACROS
28#include <__undef_macros>
29
30_LIBCPP_BEGIN_NAMESPACE_STD
31
32namespace chrono {
33
34template <class _Rep, class _Period = ratio<1> >
35class duration;
36
37template <class _Tp>
38inline const bool __is_duration_v = false;
39
40template <class _Rep, class _Period>
41inline const bool __is_duration_v<duration<_Rep, _Period> > = true;
42
43template <class _Rep, class _Period>
44inline const bool __is_duration_v<const duration<_Rep, _Period> > = true;
45
46template <class _Rep, class _Period>
47inline const bool __is_duration_v<volatile duration<_Rep, _Period> > = true;
48
49template <class _Rep, class _Period>
50inline const bool __is_duration_v<const volatile duration<_Rep, _Period> > = true;
51
52} // namespace chrono
53
54template <class _Rep1, class _Period1, class _Rep2, class _Period2>
55struct common_type<chrono::duration<_Rep1, _Period1>, chrono::duration<_Rep2, _Period2> > {
56 typedef chrono::duration<typename common_type<_Rep1, _Rep2>::type, __ratio_gcd<_Period1, _Period2> > type;
57};
58
59namespace chrono {
60
61// duration_cast
62
63template <class _FromDuration,
64 class _ToDuration,
65 class _Period = typename ratio_divide<typename _FromDuration::period, typename _ToDuration::period>::type,
66 bool = _Period::num == 1,
67 bool = _Period::den == 1>
68struct __duration_cast;
69
70template <class _FromDuration, class _ToDuration, class _Period>
71struct __duration_cast<_FromDuration, _ToDuration, _Period, true, true> {
72 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
73 return _ToDuration(static_cast<typename _ToDuration::rep>(__fd.count()));
74 }
75};
76
77template <class _FromDuration, class _ToDuration, class _Period>
78struct __duration_cast<_FromDuration, _ToDuration, _Period, true, false> {
79 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
80 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
81 return _ToDuration(
82 static_cast<typename _ToDuration::rep>(static_cast<_Ct>(__fd.count()) / static_cast<_Ct>(_Period::den)));
83 }
84};
85
86template <class _FromDuration, class _ToDuration, class _Period>
87struct __duration_cast<_FromDuration, _ToDuration, _Period, false, true> {
88 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
89 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
90 return _ToDuration(
91 static_cast<typename _ToDuration::rep>(static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num)));
92 }
93};
94
95template <class _FromDuration, class _ToDuration, class _Period>
96struct __duration_cast<_FromDuration, _ToDuration, _Period, false, false> {
97 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
98 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
99 return _ToDuration(static_cast<typename _ToDuration::rep>(
100 static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num) / static_cast<_Ct>(_Period::den)));
101 }
102};
103
104template <class _ToDuration, class _Rep, class _Period, __enable_if_t<__is_duration_v<_ToDuration>, int> = 0>
105inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration duration_cast(const duration<_Rep, _Period>& __fd) {
106 return __duration_cast<duration<_Rep, _Period>, _ToDuration>()(__fd);
107}
108
109template <class _Rep>
110struct treat_as_floating_point : is_floating_point<_Rep> {};
111
112#if _LIBCPP_STD_VER >= 17
113template <class _Rep>
114inline constexpr bool treat_as_floating_point_v = treat_as_floating_point<_Rep>::value;
115#endif
116
117template <class _Rep>
118struct duration_values {
119public:
120 _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR _Rep zero() _NOEXCEPT { return _Rep(0); }
121 _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR _Rep max() _NOEXCEPT { return numeric_limits<_Rep>::max(); }
122 _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR _Rep min() _NOEXCEPT { return numeric_limits<_Rep>::lowest(); }
123};
124
125#if _LIBCPP_STD_VER >= 17
126template <class _ToDuration, class _Rep, class _Period, enable_if_t<__is_duration_v<_ToDuration>, int> = 0>
127inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration floor(const duration<_Rep, _Period>& __d) {
128 _ToDuration __t = chrono::duration_cast<_ToDuration>(__d);
129 if (__t > __d)
130 __t = __t - _ToDuration{1};
131 return __t;
132}
133
134template <class _ToDuration, class _Rep, class _Period, enable_if_t<__is_duration_v<_ToDuration>, int> = 0>
135inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration ceil(const duration<_Rep, _Period>& __d) {
136 _ToDuration __t = chrono::duration_cast<_ToDuration>(__d);
137 if (__t < __d)
138 __t = __t + _ToDuration{1};
139 return __t;
140}
141
142template <class _ToDuration, class _Rep, class _Period, enable_if_t<__is_duration_v<_ToDuration>, int> = 0>
143inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration round(const duration<_Rep, _Period>& __d) {
144 _ToDuration __lower = chrono::floor<_ToDuration>(__d);
145 _ToDuration __upper = __lower + _ToDuration{1};
146 auto __lower_diff = __d - __lower;
147 auto __upper_diff = __upper - __d;
148 if (__lower_diff < __upper_diff)
149 return __lower;
150 if (__lower_diff > __upper_diff)
151 return __upper;
152 return __lower.count() & 1 ? __upper : __lower;
153}
154#endif
155
156// duration
157
158template <class _Rep, class _Period>
159class duration {
160 static_assert(!__is_duration_v<_Rep>, "A duration representation can not be a duration");
161 static_assert(__is_ratio_v<_Period>, "Second template parameter of duration must be a std::ratio");
162 static_assert(_Period::num > 0, "duration period must be positive");
163
164 template <class _R1, class _R2>
165 struct __no_overflow {
166 private:
167 static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>;
168 static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>;
169 static const intmax_t __n1 = _R1::num / __gcd_n1_n2;
170 static const intmax_t __d1 = _R1::den / __gcd_d1_d2;
171 static const intmax_t __n2 = _R2::num / __gcd_n1_n2;
172 static const intmax_t __d2 = _R2::den / __gcd_d1_d2;
173 static const intmax_t max = -((intmax_t(1) << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1);
174
175 template <intmax_t _Xp, intmax_t _Yp, bool __overflow>
176 struct __mul // __overflow == false
177 {
178 static const intmax_t value = _Xp * _Yp;
179 };
180
181 template <intmax_t _Xp, intmax_t _Yp>
182 struct __mul<_Xp, _Yp, true> {
183 static const intmax_t value = 1;
184 };
185
186 public:
187 static const bool value = (__n1 <= max / __d2) && (__n2 <= max / __d1);
188 typedef ratio<__mul<__n1, __d2, !value>::value, __mul<__n2, __d1, !value>::value> type;
189 };
190
191public:
192 typedef _Rep rep;
193 typedef typename _Period::type period;
194
195private:
196 rep __rep_;
197
198public:
199#ifndef _LIBCPP_CXX03_LANG
200 constexpr duration() = default;
201#else
202 _LIBCPP_HIDE_FROM_ABI duration() {}
203#endif
204
205 template <class _Rep2,
206 __enable_if_t<is_convertible<const _Rep2&, rep>::value &&
207 (treat_as_floating_point<rep>::value || !treat_as_floating_point<_Rep2>::value),
208 int> = 0>
209 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR explicit duration(const _Rep2& __r) : __rep_(__r) {}
210
211 // conversions
212 template <class _Rep2,
213 class _Period2,
214 __enable_if_t<__no_overflow<_Period2, period>::value && (treat_as_floating_point<rep>::value ||
215 (__no_overflow<_Period2, period>::type::den == 1 &&
216 !treat_as_floating_point<_Rep2>::value)),
217 int> = 0>
218 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR duration(const duration<_Rep2, _Period2>& __d)
219 : __rep_(chrono::duration_cast<duration>(__d).count()) {}
220
221 // observer
222
223 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR rep count() const { return __rep_; }
224
225 // arithmetic
226
227 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR typename common_type<duration>::type operator+() const {
228 return typename common_type<duration>::type(*this);
229 }
230 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR typename common_type<duration>::type operator-() const {
231 return typename common_type<duration>::type(-__rep_);
232 }
233 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator++() {
234 ++__rep_;
235 return *this;
236 }
237 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration operator++(int) { return duration(__rep_++); }
238 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator--() {
239 --__rep_;
240 return *this;
241 }
242 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration operator--(int) { return duration(__rep_--); }
243
244 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator+=(const duration& __d) {
245 __rep_ += __d.count();
246 return *this;
247 }
248 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator-=(const duration& __d) {
249 __rep_ -= __d.count();
250 return *this;
251 }
252
253 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator*=(const rep& __rhs) {
254 __rep_ *= __rhs;
255 return *this;
256 }
257 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator/=(const rep& __rhs) {
258 __rep_ /= __rhs;
259 return *this;
260 }
261 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator%=(const rep& __rhs) {
262 __rep_ %= __rhs;
263 return *this;
264 }
265 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator%=(const duration& __rhs) {
266 __rep_ %= __rhs.count();
267 return *this;
268 }
269
270 // special values
271
272 _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR duration zero() _NOEXCEPT {
273 return duration(duration_values<rep>::zero());
274 }
275 _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR duration min() _NOEXCEPT {
276 return duration(duration_values<rep>::min());
277 }
278 _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR duration max() _NOEXCEPT {
279 return duration(duration_values<rep>::max());
280 }
281};
282
283typedef duration<long long, nano> nanoseconds;
284typedef duration<long long, micro> microseconds;
285typedef duration<long long, milli> milliseconds;
286typedef duration<long long > seconds;
287typedef duration< long, ratio< 60> > minutes;
288typedef duration< long, ratio<3600> > hours;
289#if _LIBCPP_STD_VER >= 20
290typedef duration< int, ratio_multiply<ratio<24>, hours::period>> days;
291typedef duration< int, ratio_multiply<ratio<7>, days::period>> weeks;
292typedef duration< int, ratio_multiply<ratio<146097, 400>, days::period>> years;
293typedef duration< int, ratio_divide<years::period, ratio<12>>> months;
294#endif
295// Duration ==
296
297template <class _LhsDuration, class _RhsDuration>
298struct __duration_eq {
299 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const {
300 typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct;
301 return _Ct(__lhs).count() == _Ct(__rhs).count();
302 }
303};
304
305template <class _LhsDuration>
306struct __duration_eq<_LhsDuration, _LhsDuration> {
307 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const {
308 return __lhs.count() == __rhs.count();
309 }
310};
311
312template <class _Rep1, class _Period1, class _Rep2, class _Period2>
313inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
314operator==(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
315 return __duration_eq<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs);
316}
317
318#if _LIBCPP_STD_VER <= 17
319
320// Duration !=
321
322template <class _Rep1, class _Period1, class _Rep2, class _Period2>
323inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
324operator!=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
325 return !(__lhs == __rhs);
326}
327
328#endif // _LIBCPP_STD_VER <= 17
329
330// Duration <
331
332template <class _LhsDuration, class _RhsDuration>
333struct __duration_lt {
334 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const {
335 typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct;
336 return _Ct(__lhs).count() < _Ct(__rhs).count();
337 }
338};
339
340template <class _LhsDuration>
341struct __duration_lt<_LhsDuration, _LhsDuration> {
342 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const {
343 return __lhs.count() < __rhs.count();
344 }
345};
346
347template <class _Rep1, class _Period1, class _Rep2, class _Period2>
348inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
349operator<(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
350 return __duration_lt<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs);
351}
352
353// Duration >
354
355template <class _Rep1, class _Period1, class _Rep2, class _Period2>
356inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
357operator>(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
358 return __rhs < __lhs;
359}
360
361// Duration <=
362
363template <class _Rep1, class _Period1, class _Rep2, class _Period2>
364inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
365operator<=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
366 return !(__rhs < __lhs);
367}
368
369// Duration >=
370
371template <class _Rep1, class _Period1, class _Rep2, class _Period2>
372inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
373operator>=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
374 return !(__lhs < __rhs);
375}
376
377#if _LIBCPP_STD_VER >= 20
378
379template <class _Rep1, class _Period1, class _Rep2, class _Period2>
380 requires three_way_comparable<common_type_t<_Rep1, _Rep2>>
381_LIBCPP_HIDE_FROM_ABI constexpr auto
382operator<=>(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
383 using _Ct = common_type_t<duration<_Rep1, _Period1>, duration<_Rep2, _Period2>>;
384 return _Ct(__lhs).count() <=> _Ct(__rhs).count();
385}
386
387#endif // _LIBCPP_STD_VER >= 20
388
389// Duration +
390
391template <class _Rep1, class _Period1, class _Rep2, class _Period2>
392inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
393typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
394operator+(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
395 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
396 return _Cd(_Cd(__lhs).count() + _Cd(__rhs).count());
397}
398
399// Duration -
400
401template <class _Rep1, class _Period1, class _Rep2, class _Period2>
402inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
403typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
404operator-(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
405 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
406 return _Cd(_Cd(__lhs).count() - _Cd(__rhs).count());
407}
408
409// Duration *
410
411template <class _Rep1,
412 class _Period,
413 class _Rep2,
414 __enable_if_t<is_convertible<const _Rep2&, typename common_type<_Rep1, _Rep2>::type>::value, int> = 0>
415inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
416operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s) {
417 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
418 typedef duration<_Cr, _Period> _Cd;
419 return _Cd(_Cd(__d).count() * static_cast<_Cr>(__s));
420}
421
422template <class _Rep1,
423 class _Period,
424 class _Rep2,
425 __enable_if_t<is_convertible<const _Rep1&, typename common_type<_Rep1, _Rep2>::type>::value, int> = 0>
426inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
427operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d) {
428 return __d * __s;
429}
430
431// Duration /
432
433template <class _Rep1,
434 class _Period,
435 class _Rep2,
436 __enable_if_t<!__is_duration_v<_Rep2> &&
437 is_convertible<const _Rep2&, typename common_type<_Rep1, _Rep2>::type>::value,
438 int> = 0>
439inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
440operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s) {
441 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
442 typedef duration<_Cr, _Period> _Cd;
443 return _Cd(_Cd(__d).count() / static_cast<_Cr>(__s));
444}
445
446template <class _Rep1, class _Period1, class _Rep2, class _Period2>
447inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR typename common_type<_Rep1, _Rep2>::type
448operator/(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
449 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Ct;
450 return _Ct(__lhs).count() / _Ct(__rhs).count();
451}
452
453// Duration %
454
455template <class _Rep1,
456 class _Period,
457 class _Rep2,
458 __enable_if_t<!__is_duration_v<_Rep2> &&
459 is_convertible<const _Rep2&, typename common_type<_Rep1, _Rep2>::type>::value,
460 int> = 0>
461inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
462operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s) {
463 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
464 typedef duration<_Cr, _Period> _Cd;
465 return _Cd(_Cd(__d).count() % static_cast<_Cr>(__s));
466}
467
468template <class _Rep1, class _Period1, class _Rep2, class _Period2>
469inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
470typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
471operator%(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
472 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
473 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
474 return _Cd(static_cast<_Cr>(_Cd(__lhs).count()) % static_cast<_Cr>(_Cd(__rhs).count()));
475}
476
477} // namespace chrono
478
479#if _LIBCPP_STD_VER >= 14
480// Suffixes for duration literals [time.duration.literals]
481inline namespace literals {
482inline namespace chrono_literals {
483
484_LIBCPP_HIDE_FROM_ABI constexpr chrono::hours operator""h(unsigned long long __h) {
485 return chrono::hours(static_cast<chrono::hours::rep>(__h));
486}
487
488_LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, ratio<3600, 1>> operator""h(long double __h) {
489 return chrono::duration<long double, ratio<3600, 1>>(__h);
490}
491
492_LIBCPP_HIDE_FROM_ABI constexpr chrono::minutes operator""min(unsigned long long __m) {
493 return chrono::minutes(static_cast<chrono::minutes::rep>(__m));
494}
495
496_LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, ratio<60, 1>> operator""min(long double __m) {
497 return chrono::duration<long double, ratio<60, 1>>(__m);
498}
499
500_LIBCPP_HIDE_FROM_ABI constexpr chrono::seconds operator""s(unsigned long long __s) {
501 return chrono::seconds(static_cast<chrono::seconds::rep>(__s));
502}
503
504_LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double> operator""s(long double __s) {
505 return chrono::duration<long double>(__s);
506}
507
508_LIBCPP_HIDE_FROM_ABI constexpr chrono::milliseconds operator""ms(unsigned long long __ms) {
509 return chrono::milliseconds(static_cast<chrono::milliseconds::rep>(__ms));
510}
511
512_LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, milli> operator""ms(long double __ms) {
513 return chrono::duration<long double, milli>(__ms);
514}
515
516_LIBCPP_HIDE_FROM_ABI constexpr chrono::microseconds operator""us(unsigned long long __us) {
517 return chrono::microseconds(static_cast<chrono::microseconds::rep>(__us));
518}
519
520_LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, micro> operator""us(long double __us) {
521 return chrono::duration<long double, micro>(__us);
522}
523
524_LIBCPP_HIDE_FROM_ABI constexpr chrono::nanoseconds operator""ns(unsigned long long __ns) {
525 return chrono::nanoseconds(static_cast<chrono::nanoseconds::rep>(__ns));
526}
527
528_LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, nano> operator""ns(long double __ns) {
529 return chrono::duration<long double, nano>(__ns);
530}
531
532} // namespace chrono_literals
533} // namespace literals
534
535namespace chrono { // hoist the literals into namespace std::chrono
536using namespace literals::chrono_literals;
537} // namespace chrono
538
539#endif // _LIBCPP_STD_VER >= 14
540
541_LIBCPP_END_NAMESPACE_STD
542
543_LIBCPP_POP_MACROS
544
545#endif // _LIBCPP___CHRONO_DURATION_H