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 <__cstddef/size_t.h>
17#include <__functional/hash.h>
18#include <__type_traits/common_type.h>
19#include <__type_traits/enable_if.h>
20#include <__type_traits/is_convertible.h>
21#include <__type_traits/is_floating_point.h>
22#include <__type_traits/is_unqualified.h>
23#include <limits>
24#include <ratio>
25
26#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
27# pragma GCC system_header
28#endif
29
30_LIBCPP_PUSH_MACROS
31#include <__undef_macros>
32
33_LIBCPP_BEGIN_NAMESPACE_STD
34
35namespace chrono {
36
37template <class _Rep, class _Period = ratio<1> >
38class duration;
39
40template <class _Tp>
41inline const bool __is_duration_v = false;
42
43template <class _Rep, class _Period>
44inline const bool __is_duration_v<duration<_Rep, _Period> > = true;
45
46template <class _Rep, class _Period>
47inline const bool __is_duration_v<const duration<_Rep, _Period> > = true;
48
49template <class _Rep, class _Period>
50inline const bool __is_duration_v<volatile duration<_Rep, _Period> > = true;
51
52template <class _Rep, class _Period>
53inline const bool __is_duration_v<const volatile duration<_Rep, _Period> > = true;
54
55} // namespace chrono
56
57template <class _Rep1, class _Period1, class _Rep2, class _Period2>
58struct common_type<chrono::duration<_Rep1, _Period1>, chrono::duration<_Rep2, _Period2> > {
59 typedef chrono::duration<typename common_type<_Rep1, _Rep2>::type, __ratio_gcd<_Period1, _Period2> > type;
60};
61
62namespace chrono {
63
64// duration_cast
65
66template <class _FromDuration,
67 class _ToDuration,
68 class _Period = typename ratio_divide<typename _FromDuration::period, typename _ToDuration::period>::type,
69 bool = _Period::num == 1,
70 bool = _Period::den == 1>
71struct __duration_cast;
72
73template <class _FromDuration, class _ToDuration, class _Period>
74struct __duration_cast<_FromDuration, _ToDuration, _Period, true, true> {
75 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
76 return _ToDuration(static_cast<typename _ToDuration::rep>(__fd.count()));
77 }
78};
79
80template <class _FromDuration, class _ToDuration, class _Period>
81struct __duration_cast<_FromDuration, _ToDuration, _Period, true, false> {
82 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
83 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
84 return _ToDuration(
85 static_cast<typename _ToDuration::rep>(static_cast<_Ct>(__fd.count()) / static_cast<_Ct>(_Period::den)));
86 }
87};
88
89template <class _FromDuration, class _ToDuration, class _Period>
90struct __duration_cast<_FromDuration, _ToDuration, _Period, false, true> {
91 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
92 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
93 return _ToDuration(
94 static_cast<typename _ToDuration::rep>(static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num)));
95 }
96};
97
98template <class _FromDuration, class _ToDuration, class _Period>
99struct __duration_cast<_FromDuration, _ToDuration, _Period, false, false> {
100 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration operator()(const _FromDuration& __fd) const {
101 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct;
102 return _ToDuration(static_cast<typename _ToDuration::rep>(
103 static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num) / static_cast<_Ct>(_Period::den)));
104 }
105};
106
107template <class _ToDuration, class _Rep, class _Period, __enable_if_t<__is_duration_v<_ToDuration>, int> = 0>
108[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration
109duration_cast(const duration<_Rep, _Period>& __fd) {
110 return __duration_cast<duration<_Rep, _Period>, _ToDuration>()(__fd);
111}
112
113template <class _Rep>
114struct treat_as_floating_point : is_floating_point<_Rep> {};
115
116#if _LIBCPP_STD_VER >= 17
117template <class _Rep>
118inline constexpr bool treat_as_floating_point_v = treat_as_floating_point<_Rep>::value;
119#endif
120
121template <class _Rep>
122struct duration_values {
123public:
124 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR _Rep zero() _NOEXCEPT { return _Rep(0); }
125 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR _Rep max() _NOEXCEPT {
126 return numeric_limits<_Rep>::max();
127 }
128 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR _Rep min() _NOEXCEPT {
129 return numeric_limits<_Rep>::lowest();
130 }
131};
132
133#if _LIBCPP_STD_VER >= 17
134template <class _ToDuration, class _Rep, class _Period, enable_if_t<__is_duration_v<_ToDuration>, int> = 0>
135[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration floor(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>
143[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration ceil(const duration<_Rep, _Period>& __d) {
144 _ToDuration __t = chrono::duration_cast<_ToDuration>(__d);
145 if (__t < __d)
146 __t = __t + _ToDuration{1};
147 return __t;
148}
149
150template <class _ToDuration, class _Rep, class _Period, enable_if_t<__is_duration_v<_ToDuration>, int> = 0>
151[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _ToDuration round(const duration<_Rep, _Period>& __d) {
152 _ToDuration __lower = chrono::floor<_ToDuration>(__d);
153 _ToDuration __upper = __lower + _ToDuration{1};
154 auto __lower_diff = __d - __lower;
155 auto __upper_diff = __upper - __d;
156 if (__lower_diff < __upper_diff)
157 return __lower;
158 if (__lower_diff > __upper_diff)
159 return __upper;
160 return __lower.count() & 1 ? __upper : __lower;
161}
162#endif
163
164// duration
165
166template <class _Rep, class _Period>
167class duration {
168 static_assert(__is_unqualified_v<_Rep>, "A duration representation cannot be qualified");
169 static_assert(!__is_duration_v<_Rep>, "A duration representation can not be a duration");
170 static_assert(__is_ratio_v<_Period>, "Second template parameter of duration must be a std::ratio");
171 static_assert(_Period::num > 0, "duration period must be positive");
172
173 template <class _R1, class _R2>
174 struct __no_overflow {
175 private:
176 static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>;
177 static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>;
178 static const intmax_t __n1 = _R1::num / __gcd_n1_n2;
179 static const intmax_t __d1 = _R1::den / __gcd_d1_d2;
180 static const intmax_t __n2 = _R2::num / __gcd_n1_n2;
181 static const intmax_t __d2 = _R2::den / __gcd_d1_d2;
182 static const intmax_t max = -((intmax_t(1) << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1);
183
184 template <intmax_t _Xp, intmax_t _Yp, bool __overflow>
185 struct __mul // __overflow == false
186 {
187 static const intmax_t value = _Xp * _Yp;
188 };
189
190 template <intmax_t _Xp, intmax_t _Yp>
191 struct __mul<_Xp, _Yp, true> {
192 static const intmax_t value = 1;
193 };
194
195 public:
196 static const bool value = (__n1 <= max / __d2) && (__n2 <= max / __d1);
197 typedef ratio<__mul<__n1, __d2, !value>::value, __mul<__n2, __d1, !value>::value> type;
198 };
199
200public:
201 typedef _Rep rep;
202 typedef typename _Period::type period;
203
204private:
205 rep __rep_;
206
207public:
208#ifndef _LIBCPP_CXX03_LANG
209 constexpr duration() = default;
210#else
211 _LIBCPP_HIDE_FROM_ABI duration() {}
212#endif
213
214 template <class _Rep2,
215 __enable_if_t<is_convertible<const _Rep2&, rep>::value &&
216 (treat_as_floating_point<rep>::value || !treat_as_floating_point<_Rep2>::value),
217 int> = 0>
218 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR explicit duration(const _Rep2& __r) : __rep_(__r) {}
219
220 // conversions
221 template <class _Rep2,
222 class _Period2,
223 __enable_if_t<__no_overflow<_Period2, period>::value && (treat_as_floating_point<rep>::value ||
224 (__no_overflow<_Period2, period>::type::den == 1 &&
225 !treat_as_floating_point<_Rep2>::value)),
226 int> = 0>
227 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR duration(const duration<_Rep2, _Period2>& __d)
228 : __rep_(chrono::duration_cast<duration>(__d).count()) {}
229
230 // observer
231
232 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR rep count() const { return __rep_; }
233
234 // arithmetic
235
236 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR typename common_type<duration>::type operator+() const {
237 return typename common_type<duration>::type(*this);
238 }
239 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR typename common_type<duration>::type operator-() const {
240 return typename common_type<duration>::type(-__rep_);
241 }
242 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator++() {
243 ++__rep_;
244 return *this;
245 }
246 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration operator++(int) { return duration(__rep_++); }
247 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator--() {
248 --__rep_;
249 return *this;
250 }
251 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration operator--(int) { return duration(__rep_--); }
252
253 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator+=(const duration& __d) {
254 __rep_ += __d.count();
255 return *this;
256 }
257 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator-=(const duration& __d) {
258 __rep_ -= __d.count();
259 return *this;
260 }
261
262 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator*=(const rep& __rhs) {
263 __rep_ *= __rhs;
264 return *this;
265 }
266 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator/=(const rep& __rhs) {
267 __rep_ /= __rhs;
268 return *this;
269 }
270 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator%=(const rep& __rhs) {
271 __rep_ %= __rhs;
272 return *this;
273 }
274 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 duration& operator%=(const duration& __rhs) {
275 __rep_ %= __rhs.count();
276 return *this;
277 }
278
279 // special values
280
281 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR duration zero() _NOEXCEPT {
282 return duration(duration_values<rep>::zero());
283 }
284 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR duration min() _NOEXCEPT {
285 return duration(duration_values<rep>::min());
286 }
287 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI static _LIBCPP_CONSTEXPR duration max() _NOEXCEPT {
288 return duration(duration_values<rep>::max());
289 }
290};
291
292typedef duration<long long, nano> nanoseconds;
293typedef duration<long long, micro> microseconds;
294typedef duration<long long, milli> milliseconds;
295typedef duration<long long > seconds;
296typedef duration<long, ratio<60> > minutes;
297typedef duration<long, ratio<60 * 60> > hours;
298#if _LIBCPP_STD_VER >= 20
299typedef duration<int, ratio<60 * 60 * 24>> days;
300typedef duration<int, ratio<60 * 60 * 24 * 7>> weeks;
301typedef duration<int, ratio<static_cast<int>(365.2425 * 60 * 60 * 24)>> years;
302typedef duration<int, ratio<static_cast<int>(365.2425 * 60 * 60 * 24) / 12>> months;
303#endif
304// Duration ==
305
306template <class _Rep1, class _Period1, class _Rep2, class _Period2>
307inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
308operator==(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
309 using _Ct = typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type;
310 return _Ct(__lhs).count() == _Ct(__rhs).count();
311}
312
313#if _LIBCPP_STD_VER <= 17
314
315// Duration !=
316
317template <class _Rep1, class _Period1, class _Rep2, class _Period2>
318inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
319operator!=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
320 return !(__lhs == __rhs);
321}
322
323#endif // _LIBCPP_STD_VER <= 17
324
325// Duration <
326
327template <class _Rep1, class _Period1, class _Rep2, class _Period2>
328inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
329operator<(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
330 using _Ct = typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type;
331 return _Ct(__lhs).count() < _Ct(__rhs).count();
332}
333
334// Duration >
335
336template <class _Rep1, class _Period1, class _Rep2, class _Period2>
337inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
338operator>(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
339 return __rhs < __lhs;
340}
341
342// Duration <=
343
344template <class _Rep1, class _Period1, class _Rep2, class _Period2>
345inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
346operator<=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
347 return !(__rhs < __lhs);
348}
349
350// Duration >=
351
352template <class _Rep1, class _Period1, class _Rep2, class _Period2>
353inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR bool
354operator>=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
355 return !(__lhs < __rhs);
356}
357
358#if _LIBCPP_STD_VER >= 20
359
360template <class _Rep1, class _Period1, class _Rep2, class _Period2>
361 requires three_way_comparable<common_type_t<_Rep1, _Rep2>>
362_LIBCPP_HIDE_FROM_ABI constexpr auto
363operator<=>(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
364 using _Ct = common_type_t<duration<_Rep1, _Period1>, duration<_Rep2, _Period2>>;
365 return _Ct(__lhs).count() <=> _Ct(__rhs).count();
366}
367
368#endif // _LIBCPP_STD_VER >= 20
369
370// Duration +
371
372template <class _Rep1, class _Period1, class _Rep2, class _Period2>
373[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
374typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
375operator+(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
376 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
377 return _Cd(_Cd(__lhs).count() + _Cd(__rhs).count());
378}
379
380// Duration -
381
382template <class _Rep1, class _Period1, class _Rep2, class _Period2>
383[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
384typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
385operator-(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
386 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
387 return _Cd(_Cd(__lhs).count() - _Cd(__rhs).count());
388}
389
390// Duration *
391
392template <class _Rep1,
393 class _Period,
394 class _Rep2,
395 __enable_if_t<is_convertible<const _Rep2&, typename common_type<_Rep1, _Rep2>::type>::value, int> = 0>
396[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI
397_LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
398operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s) {
399 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
400 typedef duration<_Cr, _Period> _Cd;
401 return _Cd(_Cd(__d).count() * static_cast<_Cr>(__s));
402}
403
404template <class _Rep1,
405 class _Period,
406 class _Rep2,
407 __enable_if_t<is_convertible<const _Rep1&, typename common_type<_Rep1, _Rep2>::type>::value, int> = 0>
408[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI
409_LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
410operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d) {
411 return __d * __s;
412}
413
414// Duration /
415
416template <class _Rep1,
417 class _Period,
418 class _Rep2,
419 __enable_if_t<!__is_duration_v<_Rep2> &&
420 is_convertible<const _Rep2&, typename common_type<_Rep1, _Rep2>::type>::value,
421 int> = 0>
422[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI
423_LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
424operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s) {
425 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
426 typedef duration<_Cr, _Period> _Cd;
427 return _Cd(_Cd(__d).count() / static_cast<_Cr>(__s));
428}
429
430template <class _Rep1, class _Period1, class _Rep2, class _Period2>
431[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR typename common_type<_Rep1, _Rep2>::type
432operator/(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
433 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Ct;
434 return _Ct(__lhs).count() / _Ct(__rhs).count();
435}
436
437// Duration %
438
439template <class _Rep1,
440 class _Period,
441 class _Rep2,
442 __enable_if_t<!__is_duration_v<_Rep2> &&
443 is_convertible<const _Rep2&, typename common_type<_Rep1, _Rep2>::type>::value,
444 int> = 0>
445[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI
446_LIBCPP_CONSTEXPR duration<typename common_type<_Rep1, _Rep2>::type, _Period>
447operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s) {
448 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
449 typedef duration<_Cr, _Period> _Cd;
450 return _Cd(_Cd(__d).count() % static_cast<_Cr>(__s));
451}
452
453template <class _Rep1, class _Period1, class _Rep2, class _Period2>
454[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR
455typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type
456operator%(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) {
457 typedef typename common_type<_Rep1, _Rep2>::type _Cr;
458 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd;
459 return _Cd(static_cast<_Cr>(_Cd(__lhs).count()) % static_cast<_Cr>(_Cd(__rhs).count()));
460}
461
462} // namespace chrono
463
464#if _LIBCPP_STD_VER >= 14
465// Suffixes for duration literals [time.duration.literals]
466inline namespace literals {
467inline namespace chrono_literals {
468
469[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::hours operator""h(unsigned long long __h) {
470 return chrono::hours(static_cast<chrono::hours::rep>(__h));
471}
472
473[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, ratio<3600, 1>>
474operator""h(long double __h) {
475 return chrono::duration<long double, ratio<3600, 1>>(__h);
476}
477
478[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::minutes operator""min(unsigned long long __m) {
479 return chrono::minutes(static_cast<chrono::minutes::rep>(__m));
480}
481
482[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, ratio<60, 1>>
483operator""min(long double __m) {
484 return chrono::duration<long double, ratio<60, 1>>(__m);
485}
486
487[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::seconds operator""s(unsigned long long __s) {
488 return chrono::seconds(static_cast<chrono::seconds::rep>(__s));
489}
490
491[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double> operator""s(long double __s) {
492 return chrono::duration<long double>(__s);
493}
494
495[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::milliseconds operator""ms(unsigned long long __ms) {
496 return chrono::milliseconds(static_cast<chrono::milliseconds::rep>(__ms));
497}
498
499[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, milli> operator""ms(long double __ms) {
500 return chrono::duration<long double, milli>(__ms);
501}
502
503[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::microseconds operator""us(unsigned long long __us) {
504 return chrono::microseconds(static_cast<chrono::microseconds::rep>(__us));
505}
506
507[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, micro> operator""us(long double __us) {
508 return chrono::duration<long double, micro>(__us);
509}
510
511[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::nanoseconds operator""ns(unsigned long long __ns) {
512 return chrono::nanoseconds(static_cast<chrono::nanoseconds::rep>(__ns));
513}
514
515[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI constexpr chrono::duration<long double, nano> operator""ns(long double __ns) {
516 return chrono::duration<long double, nano>(__ns);
517}
518
519} // namespace chrono_literals
520} // namespace literals
521
522namespace chrono { // hoist the literals into namespace std::chrono
523using namespace literals::chrono_literals;
524} // namespace chrono
525
526#endif // _LIBCPP_STD_VER >= 14
527
528#if _LIBCPP_STD_VER >= 26
529
530template <class _Rep, class _Period>
531 requires __has_enabled_hash<_Rep>::value
532struct hash<chrono::duration<_Rep, _Period>> {
533 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI static size_t operator()(const chrono::duration<_Rep, _Period>& __d) {
534 return hash<_Rep>{}(__d.count());
535 }
536};
537
538#endif // _LIBCPP_STD_VER >= 26
539
540_LIBCPP_END_NAMESPACE_STD
541
542_LIBCPP_POP_MACROS
543
544#endif // _LIBCPP___CHRONO_DURATION_H
545