1// -*- C++ -*- 2//===---------------------------- chrono ----------------------------------===// 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 11#define _LIBCPP_CHRONO 12 13/* 14 chrono synopsis 15 16namespace std 17{ 18namespace chrono 19{ 20 21template <class ToDuration, class Rep, class Period> 22constexpr 23ToDuration 24duration_cast(const duration<Rep, Period>& fd); 25 26template <class Rep> struct treat_as_floating_point : is_floating_point<Rep> {}; 27 28template <class Rep> inline constexpr bool treat_as_floating_point_v 29 = treat_as_floating_point<Rep>::value; // C++17 30 31template <class Rep> 32struct duration_values 33{ 34public: 35 static constexpr Rep zero(); // noexcept in C++20 36 static constexpr Rep max(); // noexcept in C++20 37 static constexpr Rep min(); // noexcept in C++20 38}; 39 40// duration 41 42template <class Rep, class Period = ratio<1>> 43class duration 44{ 45 static_assert(!__is_duration<Rep>::value, "A duration representation can not be a duration"); 46 static_assert(__is_ratio<Period>::value, "Second template parameter of duration must be a std::ratio"); 47 static_assert(Period::num > 0, "duration period must be positive"); 48public: 49 typedef Rep rep; 50 typedef typename _Period::type period; 51 52 constexpr duration() = default; 53 template <class Rep2> 54 constexpr explicit duration(const Rep2& r, 55 typename enable_if 56 < 57 is_convertible<Rep2, rep>::value && 58 (treat_as_floating_point<rep>::value || 59 !treat_as_floating_point<rep>::value && !treat_as_floating_point<Rep2>::value) 60 >::type* = 0); 61 62 // conversions 63 template <class Rep2, class Period2> 64 constexpr duration(const duration<Rep2, Period2>& d, 65 typename enable_if 66 < 67 treat_as_floating_point<rep>::value || 68 ratio_divide<Period2, period>::type::den == 1 69 >::type* = 0); 70 71 // observer 72 73 constexpr rep count() const; 74 75 // arithmetic 76 77 constexpr common_type<duration>::type operator+() const; 78 constexpr common_type<duration>::type operator-() const; 79 constexpr duration& operator++(); // constexpr in C++17 80 constexpr duration operator++(int); // constexpr in C++17 81 constexpr duration& operator--(); // constexpr in C++17 82 constexpr duration operator--(int); // constexpr in C++17 83 84 constexpr duration& operator+=(const duration& d); // constexpr in C++17 85 constexpr duration& operator-=(const duration& d); // constexpr in C++17 86 87 duration& operator*=(const rep& rhs); // constexpr in C++17 88 duration& operator/=(const rep& rhs); // constexpr in C++17 89 duration& operator%=(const rep& rhs); // constexpr in C++17 90 duration& operator%=(const duration& rhs); // constexpr in C++17 91 92 // special values 93 94 static constexpr duration zero(); // noexcept in C++20 95 static constexpr duration min(); // noexcept in C++20 96 static constexpr duration max(); // noexcept in C++20 97}; 98 99typedef duration<long long, nano> nanoseconds; 100typedef duration<long long, micro> microseconds; 101typedef duration<long long, milli> milliseconds; 102typedef duration<long long > seconds; 103typedef duration< long, ratio< 60> > minutes; 104typedef duration< long, ratio<3600> > hours; 105 106template <class Clock, class Duration = typename Clock::duration> 107class time_point 108{ 109public: 110 typedef Clock clock; 111 typedef Duration duration; 112 typedef typename duration::rep rep; 113 typedef typename duration::period period; 114private: 115 duration d_; // exposition only 116 117public: 118 time_point(); // has value "epoch" // constexpr in C++14 119 explicit time_point(const duration& d); // same as time_point() + d // constexpr in C++14 120 121 // conversions 122 template <class Duration2> 123 time_point(const time_point<clock, Duration2>& t); // constexpr in C++14 124 125 // observer 126 127 duration time_since_epoch() const; // constexpr in C++14 128 129 // arithmetic 130 131 time_point& operator+=(const duration& d); // constexpr in C++17 132 time_point& operator-=(const duration& d); // constexpr in C++17 133 134 // special values 135 136 static constexpr time_point min(); // noexcept in C++20 137 static constexpr time_point max(); // noexcept in C++20 138}; 139 140} // chrono 141 142// common_type traits 143template <class Rep1, class Period1, class Rep2, class Period2> 144 struct common_type<chrono::duration<Rep1, Period1>, chrono::duration<Rep2, Period2>>; 145 146template <class Clock, class Duration1, class Duration2> 147 struct common_type<chrono::time_point<Clock, Duration1>, chrono::time_point<Clock, Duration2>>; 148 149namespace chrono { 150 151 152template<class T> struct is_clock; // C++20 153template<class T> inline constexpr bool is_clock_v = is_clock<T>::value; // C++20 154 155 156// duration arithmetic 157template <class Rep1, class Period1, class Rep2, class Period2> 158 constexpr 159 typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type 160 operator+(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 161template <class Rep1, class Period1, class Rep2, class Period2> 162 constexpr 163 typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type 164 operator-(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 165template <class Rep1, class Period, class Rep2> 166 constexpr 167 duration<typename common_type<Rep1, Rep2>::type, Period> 168 operator*(const duration<Rep1, Period>& d, const Rep2& s); 169template <class Rep1, class Period, class Rep2> 170 constexpr 171 duration<typename common_type<Rep1, Rep2>::type, Period> 172 operator*(const Rep1& s, const duration<Rep2, Period>& d); 173template <class Rep1, class Period, class Rep2> 174 constexpr 175 duration<typename common_type<Rep1, Rep2>::type, Period> 176 operator/(const duration<Rep1, Period>& d, const Rep2& s); 177template <class Rep1, class Period1, class Rep2, class Period2> 178 constexpr 179 typename common_type<Rep1, Rep2>::type 180 operator/(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 181 182// duration comparisons 183template <class Rep1, class Period1, class Rep2, class Period2> 184 constexpr 185 bool operator==(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 186template <class Rep1, class Period1, class Rep2, class Period2> 187 constexpr 188 bool operator!=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 189template <class Rep1, class Period1, class Rep2, class Period2> 190 constexpr 191 bool operator< (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 192template <class Rep1, class Period1, class Rep2, class Period2> 193 constexpr 194 bool operator<=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 195template <class Rep1, class Period1, class Rep2, class Period2> 196 constexpr 197 bool operator> (const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 198template <class Rep1, class Period1, class Rep2, class Period2> 199 constexpr 200 bool operator>=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); 201 202// duration_cast 203template <class ToDuration, class Rep, class Period> 204 ToDuration duration_cast(const duration<Rep, Period>& d); 205 206template <class ToDuration, class Rep, class Period> 207 constexpr ToDuration floor(const duration<Rep, Period>& d); // C++17 208template <class ToDuration, class Rep, class Period> 209 constexpr ToDuration ceil(const duration<Rep, Period>& d); // C++17 210template <class ToDuration, class Rep, class Period> 211 constexpr ToDuration round(const duration<Rep, Period>& d); // C++17 212 213// duration I/O is elsewhere 214 215// time_point arithmetic (all constexpr in C++14) 216template <class Clock, class Duration1, class Rep2, class Period2> 217 time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type> 218 operator+(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs); 219template <class Rep1, class Period1, class Clock, class Duration2> 220 time_point<Clock, typename common_type<duration<Rep1, Period1>, Duration2>::type> 221 operator+(const duration<Rep1, Period1>& lhs, const time_point<Clock, Duration2>& rhs); 222template <class Clock, class Duration1, class Rep2, class Period2> 223 time_point<Clock, typename common_type<Duration1, duration<Rep2, Period2>>::type> 224 operator-(const time_point<Clock, Duration1>& lhs, const duration<Rep2, Period2>& rhs); 225template <class Clock, class Duration1, class Duration2> 226 typename common_type<Duration1, Duration2>::type 227 operator-(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); 228 229// time_point comparisons (all constexpr in C++14) 230template <class Clock, class Duration1, class Duration2> 231 bool operator==(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); 232template <class Clock, class Duration1, class Duration2> 233 bool operator!=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); 234template <class Clock, class Duration1, class Duration2> 235 bool operator< (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); 236template <class Clock, class Duration1, class Duration2> 237 bool operator<=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); 238template <class Clock, class Duration1, class Duration2> 239 bool operator> (const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); 240template <class Clock, class Duration1, class Duration2> 241 bool operator>=(const time_point<Clock, Duration1>& lhs, const time_point<Clock, Duration2>& rhs); 242 243// time_point_cast (constexpr in C++14) 244 245template <class ToDuration, class Clock, class Duration> 246 time_point<Clock, ToDuration> time_point_cast(const time_point<Clock, Duration>& t); 247 248template <class ToDuration, class Clock, class Duration> 249 constexpr time_point<Clock, ToDuration> 250 floor(const time_point<Clock, Duration>& tp); // C++17 251 252template <class ToDuration, class Clock, class Duration> 253 constexpr time_point<Clock, ToDuration> 254 ceil(const time_point<Clock, Duration>& tp); // C++17 255 256template <class ToDuration, class Clock, class Duration> 257 constexpr time_point<Clock, ToDuration> 258 round(const time_point<Clock, Duration>& tp); // C++17 259 260template <class Rep, class Period> 261 constexpr duration<Rep, Period> abs(duration<Rep, Period> d); // C++17 262 263// Clocks 264 265class system_clock 266{ 267public: 268 typedef microseconds duration; 269 typedef duration::rep rep; 270 typedef duration::period period; 271 typedef chrono::time_point<system_clock> time_point; 272 static const bool is_steady = false; // constexpr in C++14 273 274 static time_point now() noexcept; 275 static time_t to_time_t (const time_point& __t) noexcept; 276 static time_point from_time_t(time_t __t) noexcept; 277}; 278 279template <class Duration> 280 using sys_time = time_point<system_clock, Duration>; // C++20 281using sys_seconds = sys_time<seconds>; // C++20 282using sys_days = sys_time<days>; // C++20 283 284class utc_clock; // C++20 285 286template <class Duration> 287 using utc_time = time_point<utc_clock, Duration>; // C++20 288using utc_seconds = utc_time<seconds>; // C++20 289 290class tai_clock; // C++20 291 292template <class Duration> 293 using tai_time = time_point<tai_clock, Duration>; // C++20 294using tai_seconds = tai_time<seconds>; // C++20 295 296class file_clock; // C++20 297 298template<class Duration> 299 using file_time = time_point<file_clock, Duration>; // C++20 300 301class steady_clock 302{ 303public: 304 typedef nanoseconds duration; 305 typedef duration::rep rep; 306 typedef duration::period period; 307 typedef chrono::time_point<steady_clock, duration> time_point; 308 static const bool is_steady = true; // constexpr in C++14 309 310 static time_point now() noexcept; 311}; 312 313typedef steady_clock high_resolution_clock; 314 315// 25.7.8, local time // C++20 316struct local_t {}; 317template<class Duration> 318 using local_time = time_point<local_t, Duration>; 319using local_seconds = local_time<seconds>; 320using local_days = local_time<days>; 321 322// 25.7.9, time_point conversions template<class DestClock, class SourceClock> // C++20 323struct clock_time_conversion; 324 325template<class DestClock, class SourceClock, class Duration> 326 auto clock_cast(const time_point<SourceClock, Duration>& t); 327 328// 25.8.2, class last_spec // C++20 329struct last_spec; 330 331// 25.8.3, class day // C++20 332 333class day; 334constexpr bool operator==(const day& x, const day& y) noexcept; 335constexpr bool operator!=(const day& x, const day& y) noexcept; 336constexpr bool operator< (const day& x, const day& y) noexcept; 337constexpr bool operator> (const day& x, const day& y) noexcept; 338constexpr bool operator<=(const day& x, const day& y) noexcept; 339constexpr bool operator>=(const day& x, const day& y) noexcept; 340constexpr day operator+(const day& x, const days& y) noexcept; 341constexpr day operator+(const days& x, const day& y) noexcept; 342constexpr day operator-(const day& x, const days& y) noexcept; 343constexpr days operator-(const day& x, const day& y) noexcept; 344 345// 25.8.4, class month // C++20 346class month; 347constexpr bool operator==(const month& x, const month& y) noexcept; 348constexpr bool operator!=(const month& x, const month& y) noexcept; 349constexpr bool operator< (const month& x, const month& y) noexcept; 350constexpr bool operator> (const month& x, const month& y) noexcept; 351constexpr bool operator<=(const month& x, const month& y) noexcept; 352constexpr bool operator>=(const month& x, const month& y) noexcept; 353constexpr month operator+(const month& x, const months& y) noexcept; 354constexpr month operator+(const months& x, const month& y) noexcept; 355constexpr month operator-(const month& x, const months& y) noexcept; 356constexpr months operator-(const month& x, const month& y) noexcept; 357 358// 25.8.5, class year // C++20 359class year; 360constexpr bool operator==(const year& x, const year& y) noexcept; 361constexpr bool operator!=(const year& x, const year& y) noexcept; 362constexpr bool operator< (const year& x, const year& y) noexcept; 363constexpr bool operator> (const year& x, const year& y) noexcept; 364constexpr bool operator<=(const year& x, const year& y) noexcept; 365constexpr bool operator>=(const year& x, const year& y) noexcept; 366constexpr year operator+(const year& x, const years& y) noexcept; 367constexpr year operator+(const years& x, const year& y) noexcept; 368constexpr year operator-(const year& x, const years& y) noexcept; 369constexpr years operator-(const year& x, const year& y) noexcept; 370 371// 25.8.6, class weekday // C++20 372class weekday; 373 374constexpr bool operator==(const weekday& x, const weekday& y) noexcept; 375constexpr bool operator!=(const weekday& x, const weekday& y) noexcept; 376constexpr weekday operator+(const weekday& x, const days& y) noexcept; 377constexpr weekday operator+(const days& x, const weekday& y) noexcept; 378constexpr weekday operator-(const weekday& x, const days& y) noexcept; 379constexpr days operator-(const weekday& x, const weekday& y) noexcept; 380 381// 25.8.7, class weekday_indexed // C++20 382 383class weekday_indexed; 384constexpr bool operator==(const weekday_indexed& x, const weekday_indexed& y) noexcept; 385constexpr bool operator!=(const weekday_indexed& x, const weekday_indexed& y) noexcept; 386 387// 25.8.8, class weekday_last // C++20 388class weekday_last; 389 390constexpr bool operator==(const weekday_last& x, const weekday_last& y) noexcept; 391constexpr bool operator!=(const weekday_last& x, const weekday_last& y) noexcept; 392 393// 25.8.9, class month_day // C++20 394class month_day; 395 396constexpr bool operator==(const month_day& x, const month_day& y) noexcept; 397constexpr bool operator!=(const month_day& x, const month_day& y) noexcept; 398constexpr bool operator< (const month_day& x, const month_day& y) noexcept; 399constexpr bool operator> (const month_day& x, const month_day& y) noexcept; 400constexpr bool operator<=(const month_day& x, const month_day& y) noexcept; 401constexpr bool operator>=(const month_day& x, const month_day& y) noexcept; 402 403 404// 25.8.10, class month_day_last // C++20 405class month_day_last; 406 407constexpr bool operator==(const month_day_last& x, const month_day_last& y) noexcept; 408constexpr bool operator!=(const month_day_last& x, const month_day_last& y) noexcept; 409constexpr bool operator< (const month_day_last& x, const month_day_last& y) noexcept; 410constexpr bool operator> (const month_day_last& x, const month_day_last& y) noexcept; 411constexpr bool operator<=(const month_day_last& x, const month_day_last& y) noexcept; 412constexpr bool operator>=(const month_day_last& x, const month_day_last& y) noexcept; 413 414// 25.8.11, class month_weekday // C++20 415class month_weekday; 416 417constexpr bool operator==(const month_weekday& x, const month_weekday& y) noexcept; 418constexpr bool operator!=(const month_weekday& x, const month_weekday& y) noexcept; 419 420// 25.8.12, class month_weekday_last // C++20 421class month_weekday_last; 422 423constexpr bool operator==(const month_weekday_last& x, const month_weekday_last& y) noexcept; 424constexpr bool operator!=(const month_weekday_last& x, const month_weekday_last& y) noexcept; 425 426 427// 25.8.13, class year_month // C++20 428class year_month; 429 430constexpr bool operator==(const year_month& x, const year_month& y) noexcept; 431constexpr bool operator!=(const year_month& x, const year_month& y) noexcept; 432constexpr bool operator< (const year_month& x, const year_month& y) noexcept; 433constexpr bool operator> (const year_month& x, const year_month& y) noexcept; 434constexpr bool operator<=(const year_month& x, const year_month& y) noexcept; 435constexpr bool operator>=(const year_month& x, const year_month& y) noexcept; 436 437constexpr year_month operator+(const year_month& ym, const months& dm) noexcept; 438constexpr year_month operator+(const months& dm, const year_month& ym) noexcept; 439constexpr year_month operator-(const year_month& ym, const months& dm) noexcept; 440constexpr months operator-(const year_month& x, const year_month& y) noexcept; 441constexpr year_month operator+(const year_month& ym, const years& dy) noexcept; 442constexpr year_month operator+(const years& dy, const year_month& ym) noexcept; 443constexpr year_month operator-(const year_month& ym, const years& dy) noexcept; 444 445// 25.8.14, class year_month_day class // C++20 446year_month_day; 447 448constexpr bool operator==(const year_month_day& x, const year_month_day& y) noexcept; 449constexpr bool operator!=(const year_month_day& x, const year_month_day& y) noexcept; 450constexpr bool operator< (const year_month_day& x, const year_month_day& y) noexcept; 451constexpr bool operator> (const year_month_day& x, const year_month_day& y) noexcept; 452constexpr bool operator<=(const year_month_day& x, const year_month_day& y) noexcept; 453constexpr bool operator>=(const year_month_day& x, const year_month_day& y) noexcept; 454 455constexpr year_month_day operator+(const year_month_day& ymd, const months& dm) noexcept; 456constexpr year_month_day operator+(const months& dm, const year_month_day& ymd) noexcept; 457constexpr year_month_day operator+(const year_month_day& ymd, const years& dy) noexcept; 458constexpr year_month_day operator+(const years& dy, const year_month_day& ymd) noexcept; 459constexpr year_month_day operator-(const year_month_day& ymd, const months& dm) noexcept; 460constexpr year_month_day operator-(const year_month_day& ymd, const years& dy) noexcept; 461 462 463// 25.8.15, class year_month_day_last // C++20 464class year_month_day_last; 465 466constexpr bool operator==(const year_month_day_last& x, 467 const year_month_day_last& y) noexcept; 468constexpr bool operator!=(const year_month_day_last& x, 469 const year_month_day_last& y) noexcept; 470constexpr bool operator< (const year_month_day_last& x, 471 const year_month_day_last& y) noexcept; 472constexpr bool operator> (const year_month_day_last& x, 473 const year_month_day_last& y) noexcept; 474constexpr bool operator<=(const year_month_day_last& x, 475 const year_month_day_last& y) noexcept; 476constexpr bool operator>=(const year_month_day_last& x, 477 const year_month_day_last& y) noexcept; 478 479constexpr year_month_day_last 480 operator+(const year_month_day_last& ymdl, const months& dm) noexcept; 481constexpr year_month_day_last 482 operator+(const months& dm, const year_month_day_last& ymdl) noexcept; 483constexpr year_month_day_last 484 operator+(const year_month_day_last& ymdl, const years& dy) noexcept; 485constexpr year_month_day_last 486 operator+(const years& dy, const year_month_day_last& ymdl) noexcept; 487constexpr year_month_day_last 488 operator-(const year_month_day_last& ymdl, const months& dm) noexcept; 489constexpr year_month_day_last 490 operator-(const year_month_day_last& ymdl, const years& dy) noexcept; 491 492// 25.8.16, class year_month_weekday // C++20 493class year_month_weekday; 494 495constexpr bool operator==(const year_month_weekday& x, 496 const year_month_weekday& y) noexcept; 497constexpr bool operator!=(const year_month_weekday& x, 498 const year_month_weekday& y) noexcept; 499 500constexpr year_month_weekday 501 operator+(const year_month_weekday& ymwd, const months& dm) noexcept; 502constexpr year_month_weekday 503 operator+(const months& dm, const year_month_weekday& ymwd) noexcept; 504constexpr year_month_weekday 505 operator+(const year_month_weekday& ymwd, const years& dy) noexcept; 506constexpr year_month_weekday 507 operator+(const years& dy, const year_month_weekday& ymwd) noexcept; 508constexpr year_month_weekday 509 operator-(const year_month_weekday& ymwd, const months& dm) noexcept; 510constexpr year_month_weekday 511 operator-(const year_month_weekday& ymwd, const years& dy) noexcept; 512 513// 25.8.17, class year_month_weekday_last // C++20 514class year_month_weekday_last; 515 516constexpr bool operator==(const year_month_weekday_last& x, 517 const year_month_weekday_last& y) noexcept; 518constexpr bool operator!=(const year_month_weekday_last& x, 519 const year_month_weekday_last& y) noexcept; 520constexpr year_month_weekday_last 521 operator+(const year_month_weekday_last& ymwdl, const months& dm) noexcept; 522constexpr year_month_weekday_last 523 operator+(const months& dm, const year_month_weekday_last& ymwdl) noexcept; 524constexpr year_month_weekday_last 525 operator+(const year_month_weekday_last& ymwdl, const years& dy) noexcept; 526constexpr year_month_weekday_last 527 operator+(const years& dy, const year_month_weekday_last& ymwdl) noexcept; 528constexpr year_month_weekday_last 529 operator-(const year_month_weekday_last& ymwdl, const months& dm) noexcept; 530constexpr year_month_weekday_last 531 operator-(const year_month_weekday_last& ymwdl, const years& dy) noexcept; 532 533// 25.8.18, civil calendar conventional syntax operators // C++20 534constexpr year_month 535 operator/(const year& y, const month& m) noexcept; 536constexpr year_month 537 operator/(const year& y, int m) noexcept; 538constexpr month_day 539 operator/(const month& m, const day& d) noexcept; 540constexpr month_day 541 operator/(const month& m, int d) noexcept; 542constexpr month_day 543 operator/(int m, const day& d) noexcept; 544constexpr month_day 545 operator/(const day& d, const month& m) noexcept; 546constexpr month_day 547 operator/(const day& d, int m) noexcept; 548constexpr month_day_last 549 operator/(const month& m, last_spec) noexcept; 550constexpr month_day_last 551 operator/(int m, last_spec) noexcept; 552constexpr month_day_last 553 operator/(last_spec, const month& m) noexcept; 554constexpr month_day_last 555 operator/(last_spec, int m) noexcept; 556constexpr month_weekday 557 operator/(const month& m, const weekday_indexed& wdi) noexcept; 558constexpr month_weekday 559 operator/(int m, const weekday_indexed& wdi) noexcept; 560constexpr month_weekday 561 operator/(const weekday_indexed& wdi, const month& m) noexcept; 562constexpr month_weekday 563 operator/(const weekday_indexed& wdi, int m) noexcept; 564constexpr month_weekday_last 565 operator/(const month& m, const weekday_last& wdl) noexcept; 566constexpr month_weekday_last 567 operator/(int m, const weekday_last& wdl) noexcept; 568constexpr month_weekday_last 569 operator/(const weekday_last& wdl, const month& m) noexcept; 570constexpr month_weekday_last 571 operator/(const weekday_last& wdl, int m) noexcept; 572constexpr year_month_day 573 operator/(const year_month& ym, const day& d) noexcept; 574constexpr year_month_day 575 operator/(const year_month& ym, int d) noexcept; 576constexpr year_month_day 577 operator/(const year& y, const month_day& md) noexcept; 578constexpr year_month_day 579 operator/(int y, const month_day& md) noexcept; 580constexpr year_month_day 581 operator/(const month_day& md, const year& y) noexcept; 582constexpr year_month_day 583 operator/(const month_day& md, int y) noexcept; 584constexpr year_month_day_last 585 operator/(const year_month& ym, last_spec) noexcept; 586constexpr year_month_day_last 587 operator/(const year& y, const month_day_last& mdl) noexcept; 588constexpr year_month_day_last 589 operator/(int y, const month_day_last& mdl) noexcept; 590constexpr year_month_day_last 591 operator/(const month_day_last& mdl, const year& y) noexcept; 592constexpr year_month_day_last 593 operator/(const month_day_last& mdl, int y) noexcept; 594constexpr year_month_weekday 595 operator/(const year_month& ym, const weekday_indexed& wdi) noexcept; 596constexpr year_month_weekday 597 operator/(const year& y, const month_weekday& mwd) noexcept; 598constexpr year_month_weekday 599 operator/(int y, const month_weekday& mwd) noexcept; 600constexpr year_month_weekday 601 operator/(const month_weekday& mwd, const year& y) noexcept; 602constexpr year_month_weekday 603 operator/(const month_weekday& mwd, int y) noexcept; 604constexpr year_month_weekday_last 605 operator/(const year_month& ym, const weekday_last& wdl) noexcept; 606constexpr year_month_weekday_last 607 operator/(const year& y, const month_weekday_last& mwdl) noexcept; 608constexpr year_month_weekday_last 609 operator/(int y, const month_weekday_last& mwdl) noexcept; 610constexpr year_month_weekday_last 611 operator/(const month_weekday_last& mwdl, const year& y) noexcept; 612constexpr year_month_weekday_last 613 operator/(const month_weekday_last& mwdl, int y) noexcept; 614 615// 26.9, class template hh_mm_ss 616template <class Duration> 617class hh_mm_ss 618{ 619 bool is_neg; // exposition only 620 chrono::hours h; // exposition only 621 chrono::minutes m; // exposition only 622 chrono::seconds s; // exposition only 623 precision ss; // exposition only 624 625public: 626 static unsigned constexpr fractional_width = see below; 627 using precision = see below; 628 629 constexpr hh_mm_ss() noexcept : hh_mm_ss{Duration::zero()} {} 630 constexpr explicit hh_mm_ss(Duration d) noexcept; 631 632 constexpr bool is_negative() const noexcept; 633 constexpr chrono::hours hours() const noexcept; 634 constexpr chrono::minutes minutes() const noexcept; 635 constexpr chrono::seconds seconds() const noexcept; 636 constexpr precision subseconds() const noexcept; 637 638 constexpr explicit operator precision() const noexcept; 639 constexpr precision to_duration() const noexcept; 640}; 641 642template <class charT, class traits, class Duration> 643 basic_ostream<charT, traits>& 644 operator<<(basic_ostream<charT, traits>& os, hh_mm_ss<Duration> const& hms); 645 646// 26.10, 12/24 hour functions 647constexpr bool is_am(hours const& h) noexcept; 648constexpr bool is_pm(hours const& h) noexcept; 649constexpr hours make12(const hours& h) noexcept; 650constexpr hours make24(const hours& h, bool is_pm) noexcept; 651 652 653// 25.10.2, time zone database // C++20 654struct tzdb; 655class tzdb_list; 656 657// 25.10.2.3, time zone database access // C++20 658const tzdb& get_tzdb(); 659tzdb_list& get_tzdb_list(); 660const time_zone* locate_zone(string_view tz_name); 661const time_zone* current_zone(); 662 663// 25.10.2.4, remote time zone database support // C++20 664const tzdb& reload_tzdb(); 665string remote_version(); 666 667// 25.10.3, exception classes // C++20 668class nonexistent_local_time; 669class ambiguous_local_time; 670 671// 25.10.4, information classes // C++20 672struct sys_info; 673struct local_info; 674 675// 25.10.5, class time_zone // C++20 676enum class choose {earliest, latest}; 677class time_zone; 678bool operator==(const time_zone& x, const time_zone& y) noexcept; 679bool operator!=(const time_zone& x, const time_zone& y) noexcept; 680bool operator<(const time_zone& x, const time_zone& y) noexcept; 681bool operator>(const time_zone& x, const time_zone& y) noexcept; 682bool operator<=(const time_zone& x, const time_zone& y) noexcept; 683bool operator>=(const time_zone& x, const time_zone& y) noexcept; 684 685// 25.10.6, class template zoned_traits // C++20 686template<class T> struct zoned_traits; 687 688// 25.10.7, class template zoned_time // C++20 689template<class Duration, class TimeZonePtr = const time_zone*> class zoned_time; 690using zoned_seconds = zoned_time<seconds>; 691 692template<class Duration1, class Duration2, class TimeZonePtr> 693 bool operator==(const zoned_time<Duration1, TimeZonePtr>& x, 694 const zoned_time<Duration2, TimeZonePtr>& y); 695template<class Duration1, class Duration2, class TimeZonePtr> 696 bool operator!=(const zoned_time<Duration1, TimeZonePtr>& x, 697 const zoned_time<Duration2, TimeZonePtr>& y); 698 699// 25.10.8, leap second support // C++20 700class leap; 701 702bool operator==(const leap& x, const leap& y); 703bool operator!=(const leap& x, const leap& y); 704bool operator< (const leap& x, const leap& y); 705bool operator> (const leap& x, const leap& y); 706bool operator<=(const leap& x, const leap& y); 707bool operator>=(const leap& x, const leap& y); 708template<class Duration> 709 bool operator==(const leap& x, const sys_time<Duration>& y); 710template<class Duration> 711 bool operator==(const sys_time<Duration>& x, const leap& y); 712template<class Duration> 713 bool operator!=(const leap& x, const sys_time<Duration>& y); 714template<class Duration> 715 bool operator!=(const sys_time<Duration>& x, const leap& y); 716template<class Duration> 717 bool operator< (const leap& x, const sys_time<Duration>& y); 718template<class Duration> 719 bool operator< (const sys_time<Duration>& x, const leap& y); 720template<class Duration> 721 bool operator> (const leap& x, const sys_time<Duration>& y); 722template<class Duration> 723 bool operator> (const sys_time<Duration>& x, const leap& y); 724template<class Duration> 725 bool operator<=(const leap& x, const sys_time<Duration>& y); 726template<class Duration> 727 bool operator<=(const sys_time<Duration>& x, const leap& y); 728template<class Duration> 729 bool operator>=(const leap& x, const sys_time<Duration>& y); 730template<class Duration> 731 bool operator>=(const sys_time<Duration>& x, const leap& y); 732 733// 25.10.9, class link // C++20 734class link; 735bool operator==(const link& x, const link& y); 736bool operator!=(const link& x, const link& y); 737bool operator< (const link& x, const link& y); 738bool operator> (const link& x, const link& y); 739bool operator<=(const link& x, const link& y); 740bool operator>=(const link& x, const link& y); 741 742// 25.11, formatting // C++20 743template<class charT, class Streamable> 744 basic_string<charT> 745 format(const charT* fmt, const Streamable& s); 746 747template<class charT, class Streamable> 748 basic_string<charT> 749 format(const locale& loc, const charT* fmt, const Streamable& s); 750 751template<class charT, class traits, class Alloc, class Streamable> 752 basic_string<charT, traits, Alloc> 753 format(const basic_string<charT, traits, Alloc>& fmt, const Streamable& s); 754 755template<class charT, class traits, class Alloc, class Streamable> 756 basic_string<charT, traits, Alloc> 757 format(const locale& loc, const basic_string<charT, traits, Alloc>& fmt, 758 const Streamable& s); 759 760// 25.12, parsing // C++20 761template<class charT, class traits, class Alloc, class Parsable> 762unspecified 763 parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp); 764 765template<class charT, class traits, class Alloc, class Parsable> 766unspecified 767 parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp, 768 basic_string<charT, traits, Alloc>& abbrev); 769 770template<class charT, class traits, class Alloc, class Parsable> 771unspecified 772 parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp, 773 minutes& offset); 774 775template<class charT, class traits, class Alloc, class Parsable> 776unspecified 777 parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp, 778 basic_string<charT, traits, Alloc>& abbrev, minutes& offset); 779 780// calendrical constants 781inline constexpr last_spec last{}; // C++20 782inline constexpr chrono::weekday Sunday{0}; // C++20 783inline constexpr chrono::weekday Monday{1}; // C++20 784inline constexpr chrono::weekday Tuesday{2}; // C++20 785inline constexpr chrono::weekday Wednesday{3}; // C++20 786inline constexpr chrono::weekday Thursday{4}; // C++20 787inline constexpr chrono::weekday Friday{5}; // C++20 788inline constexpr chrono::weekday Saturday{6}; // C++20 789 790inline constexpr chrono::month January{1}; // C++20 791inline constexpr chrono::month February{2}; // C++20 792inline constexpr chrono::month March{3}; // C++20 793inline constexpr chrono::month April{4}; // C++20 794inline constexpr chrono::month May{5}; // C++20 795inline constexpr chrono::month June{6}; // C++20 796inline constexpr chrono::month July{7}; // C++20 797inline constexpr chrono::month August{8}; // C++20 798inline constexpr chrono::month September{9}; // C++20 799inline constexpr chrono::month October{10}; // C++20 800inline constexpr chrono::month November{11}; // C++20 801inline constexpr chrono::month December{12}; // C++20 802} // chrono 803 804inline namespace literals { 805 inline namespace chrono_literals { 806constexpr chrono::hours operator ""h(unsigned long long); // C++14 807constexpr chrono::duration<unspecified , ratio<3600,1>> operator ""h(long double); // C++14 808constexpr chrono::minutes operator ""min(unsigned long long); // C++14 809constexpr chrono::duration<unspecified , ratio<60,1>> operator ""min(long double); // C++14 810constexpr chrono::seconds operator ""s(unsigned long long); // C++14 811constexpr chrono::duration<unspecified > operator ""s(long double); // C++14 812constexpr chrono::milliseconds operator ""ms(unsigned long long); // C++14 813constexpr chrono::duration<unspecified , milli> operator ""ms(long double); // C++14 814constexpr chrono::microseconds operator ""us(unsigned long long); // C++14 815constexpr chrono::duration<unspecified , micro> operator ""us(long double); // C++14 816constexpr chrono::nanoseconds operator ""ns(unsigned long long); // C++14 817constexpr chrono::duration<unspecified , nano> operator ""ns(long double); // C++14 818constexpr chrono::day operator ""d(unsigned long long d) noexcept; // C++20 819constexpr chrono::year operator ""y(unsigned long long y) noexcept; // C++20 820} // chrono_literals 821} // literals 822 823} // std 824*/ 825 826#include <__availability> 827#include <__config> 828#include <compare> 829#include <ctime> 830#include <limits> 831#include <ratio> 832#include <type_traits> 833#include <version> 834 835#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 836#pragma GCC system_header 837#endif 838 839_LIBCPP_PUSH_MACROS 840#include <__undef_macros> 841 842#ifndef _LIBCPP_CXX03_LANG 843_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM 844struct _FilesystemClock; 845_LIBCPP_END_NAMESPACE_FILESYSTEM 846#endif // !_LIBCPP_CXX03_LANG 847 848_LIBCPP_BEGIN_NAMESPACE_STD 849 850namespace chrono 851{ 852 853template <class _Rep, class _Period = ratio<1> > class _LIBCPP_TEMPLATE_VIS duration; 854 855template <class _Tp> 856struct __is_duration : false_type {}; 857 858template <class _Rep, class _Period> 859struct __is_duration<duration<_Rep, _Period> > : true_type {}; 860 861template <class _Rep, class _Period> 862struct __is_duration<const duration<_Rep, _Period> > : true_type {}; 863 864template <class _Rep, class _Period> 865struct __is_duration<volatile duration<_Rep, _Period> > : true_type {}; 866 867template <class _Rep, class _Period> 868struct __is_duration<const volatile duration<_Rep, _Period> > : true_type {}; 869 870} // chrono 871 872template <class _Rep1, class _Period1, class _Rep2, class _Period2> 873struct _LIBCPP_TEMPLATE_VIS common_type<chrono::duration<_Rep1, _Period1>, 874 chrono::duration<_Rep2, _Period2> > 875{ 876 typedef chrono::duration<typename common_type<_Rep1, _Rep2>::type, 877 typename __ratio_gcd<_Period1, _Period2>::type> type; 878}; 879 880namespace chrono { 881 882// duration_cast 883 884template <class _FromDuration, class _ToDuration, 885 class _Period = typename ratio_divide<typename _FromDuration::period, typename _ToDuration::period>::type, 886 bool = _Period::num == 1, 887 bool = _Period::den == 1> 888struct __duration_cast; 889 890template <class _FromDuration, class _ToDuration, class _Period> 891struct __duration_cast<_FromDuration, _ToDuration, _Period, true, true> 892{ 893 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 894 _ToDuration operator()(const _FromDuration& __fd) const 895 { 896 return _ToDuration(static_cast<typename _ToDuration::rep>(__fd.count())); 897 } 898}; 899 900template <class _FromDuration, class _ToDuration, class _Period> 901struct __duration_cast<_FromDuration, _ToDuration, _Period, true, false> 902{ 903 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 904 _ToDuration operator()(const _FromDuration& __fd) const 905 { 906 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; 907 return _ToDuration(static_cast<typename _ToDuration::rep>( 908 static_cast<_Ct>(__fd.count()) / static_cast<_Ct>(_Period::den))); 909 } 910}; 911 912template <class _FromDuration, class _ToDuration, class _Period> 913struct __duration_cast<_FromDuration, _ToDuration, _Period, false, true> 914{ 915 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 916 _ToDuration operator()(const _FromDuration& __fd) const 917 { 918 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; 919 return _ToDuration(static_cast<typename _ToDuration::rep>( 920 static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num))); 921 } 922}; 923 924template <class _FromDuration, class _ToDuration, class _Period> 925struct __duration_cast<_FromDuration, _ToDuration, _Period, false, false> 926{ 927 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 928 _ToDuration operator()(const _FromDuration& __fd) const 929 { 930 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; 931 return _ToDuration(static_cast<typename _ToDuration::rep>( 932 static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num) 933 / static_cast<_Ct>(_Period::den))); 934 } 935}; 936 937template <class _ToDuration, class _Rep, class _Period> 938inline _LIBCPP_INLINE_VISIBILITY 939_LIBCPP_CONSTEXPR 940typename enable_if 941< 942 __is_duration<_ToDuration>::value, 943 _ToDuration 944>::type 945duration_cast(const duration<_Rep, _Period>& __fd) 946{ 947 return __duration_cast<duration<_Rep, _Period>, _ToDuration>()(__fd); 948} 949 950template <class _Rep> 951struct _LIBCPP_TEMPLATE_VIS treat_as_floating_point : is_floating_point<_Rep> {}; 952 953#if _LIBCPP_STD_VER > 14 954template <class _Rep> 955inline constexpr bool treat_as_floating_point_v = treat_as_floating_point<_Rep>::value; 956#endif 957 958template <class _Rep> 959struct _LIBCPP_TEMPLATE_VIS duration_values 960{ 961public: 962 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep zero() _NOEXCEPT {return _Rep(0);} 963 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep max() _NOEXCEPT {return numeric_limits<_Rep>::max();} 964 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep min() _NOEXCEPT {return numeric_limits<_Rep>::lowest();} 965}; 966 967#if _LIBCPP_STD_VER > 14 968template <class _ToDuration, class _Rep, class _Period> 969inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 970typename enable_if 971< 972 __is_duration<_ToDuration>::value, 973 _ToDuration 974>::type 975floor(const duration<_Rep, _Period>& __d) 976{ 977 _ToDuration __t = duration_cast<_ToDuration>(__d); 978 if (__t > __d) 979 __t = __t - _ToDuration{1}; 980 return __t; 981} 982 983template <class _ToDuration, class _Rep, class _Period> 984inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 985typename enable_if 986< 987 __is_duration<_ToDuration>::value, 988 _ToDuration 989>::type 990ceil(const duration<_Rep, _Period>& __d) 991{ 992 _ToDuration __t = duration_cast<_ToDuration>(__d); 993 if (__t < __d) 994 __t = __t + _ToDuration{1}; 995 return __t; 996} 997 998template <class _ToDuration, class _Rep, class _Period> 999inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1000typename enable_if 1001< 1002 __is_duration<_ToDuration>::value, 1003 _ToDuration 1004>::type 1005round(const duration<_Rep, _Period>& __d) 1006{ 1007 _ToDuration __lower = floor<_ToDuration>(__d); 1008 _ToDuration __upper = __lower + _ToDuration{1}; 1009 auto __lowerDiff = __d - __lower; 1010 auto __upperDiff = __upper - __d; 1011 if (__lowerDiff < __upperDiff) 1012 return __lower; 1013 if (__lowerDiff > __upperDiff) 1014 return __upper; 1015 return __lower.count() & 1 ? __upper : __lower; 1016} 1017#endif 1018 1019// duration 1020 1021template <class _Rep, class _Period> 1022class _LIBCPP_TEMPLATE_VIS duration 1023{ 1024 static_assert(!__is_duration<_Rep>::value, "A duration representation can not be a duration"); 1025 static_assert(__is_ratio<_Period>::value, "Second template parameter of duration must be a std::ratio"); 1026 static_assert(_Period::num > 0, "duration period must be positive"); 1027 1028 template <class _R1, class _R2> 1029 struct __no_overflow 1030 { 1031 private: 1032 static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>::value; 1033 static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>::value; 1034 static const intmax_t __n1 = _R1::num / __gcd_n1_n2; 1035 static const intmax_t __d1 = _R1::den / __gcd_d1_d2; 1036 static const intmax_t __n2 = _R2::num / __gcd_n1_n2; 1037 static const intmax_t __d2 = _R2::den / __gcd_d1_d2; 1038 static const intmax_t max = -((intmax_t(1) << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1); 1039 1040 template <intmax_t _Xp, intmax_t _Yp, bool __overflow> 1041 struct __mul // __overflow == false 1042 { 1043 static const intmax_t value = _Xp * _Yp; 1044 }; 1045 1046 template <intmax_t _Xp, intmax_t _Yp> 1047 struct __mul<_Xp, _Yp, true> 1048 { 1049 static const intmax_t value = 1; 1050 }; 1051 1052 public: 1053 static const bool value = (__n1 <= max / __d2) && (__n2 <= max / __d1); 1054 typedef ratio<__mul<__n1, __d2, !value>::value, 1055 __mul<__n2, __d1, !value>::value> type; 1056 }; 1057 1058public: 1059 typedef _Rep rep; 1060 typedef typename _Period::type period; 1061private: 1062 rep __rep_; 1063public: 1064 1065 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1066#ifndef _LIBCPP_CXX03_LANG 1067 duration() = default; 1068#else 1069 duration() {} 1070#endif 1071 1072 template <class _Rep2> 1073 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1074 explicit duration(const _Rep2& __r, 1075 typename enable_if 1076 < 1077 is_convertible<_Rep2, rep>::value && 1078 (treat_as_floating_point<rep>::value || 1079 !treat_as_floating_point<_Rep2>::value) 1080 >::type* = nullptr) 1081 : __rep_(__r) {} 1082 1083 // conversions 1084 template <class _Rep2, class _Period2> 1085 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1086 duration(const duration<_Rep2, _Period2>& __d, 1087 typename enable_if 1088 < 1089 __no_overflow<_Period2, period>::value && ( 1090 treat_as_floating_point<rep>::value || 1091 (__no_overflow<_Period2, period>::type::den == 1 && 1092 !treat_as_floating_point<_Rep2>::value)) 1093 >::type* = nullptr) 1094 : __rep_(chrono::duration_cast<duration>(__d).count()) {} 1095 1096 // observer 1097 1098 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR rep count() const {return __rep_;} 1099 1100 // arithmetic 1101 1102 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR typename common_type<duration>::type operator+() const {return typename common_type<duration>::type(*this);} 1103 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR typename common_type<duration>::type operator-() const {return typename common_type<duration>::type(-__rep_);} 1104 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator++() {++__rep_; return *this;} 1105 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration operator++(int) {return duration(__rep_++);} 1106 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator--() {--__rep_; return *this;} 1107 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration operator--(int) {return duration(__rep_--);} 1108 1109 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator+=(const duration& __d) {__rep_ += __d.count(); return *this;} 1110 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator-=(const duration& __d) {__rep_ -= __d.count(); return *this;} 1111 1112 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator*=(const rep& rhs) {__rep_ *= rhs; return *this;} 1113 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator/=(const rep& rhs) {__rep_ /= rhs; return *this;} 1114 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator%=(const rep& rhs) {__rep_ %= rhs; return *this;} 1115 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator%=(const duration& rhs) {__rep_ %= rhs.count(); return *this;} 1116 1117 // special values 1118 1119 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration zero() _NOEXCEPT {return duration(duration_values<rep>::zero());} 1120 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration min() _NOEXCEPT {return duration(duration_values<rep>::min());} 1121 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration max() _NOEXCEPT {return duration(duration_values<rep>::max());} 1122}; 1123 1124typedef duration<long long, nano> nanoseconds; 1125typedef duration<long long, micro> microseconds; 1126typedef duration<long long, milli> milliseconds; 1127typedef duration<long long > seconds; 1128typedef duration< long, ratio< 60> > minutes; 1129typedef duration< long, ratio<3600> > hours; 1130#if _LIBCPP_STD_VER > 17 1131typedef duration< int, ratio_multiply<ratio<24>, hours::period>> days; 1132typedef duration< int, ratio_multiply<ratio<7>, days::period>> weeks; 1133typedef duration< int, ratio_multiply<ratio<146097, 400>, days::period>> years; 1134typedef duration< int, ratio_divide<years::period, ratio<12>>> months; 1135#endif 1136// Duration == 1137 1138template <class _LhsDuration, class _RhsDuration> 1139struct __duration_eq 1140{ 1141 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1142 bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const 1143 { 1144 typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct; 1145 return _Ct(__lhs).count() == _Ct(__rhs).count(); 1146 } 1147}; 1148 1149template <class _LhsDuration> 1150struct __duration_eq<_LhsDuration, _LhsDuration> 1151{ 1152 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1153 bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const 1154 {return __lhs.count() == __rhs.count();} 1155}; 1156 1157template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1158inline _LIBCPP_INLINE_VISIBILITY 1159_LIBCPP_CONSTEXPR 1160bool 1161operator==(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1162{ 1163 return __duration_eq<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs); 1164} 1165 1166// Duration != 1167 1168template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1169inline _LIBCPP_INLINE_VISIBILITY 1170_LIBCPP_CONSTEXPR 1171bool 1172operator!=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1173{ 1174 return !(__lhs == __rhs); 1175} 1176 1177// Duration < 1178 1179template <class _LhsDuration, class _RhsDuration> 1180struct __duration_lt 1181{ 1182 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1183 bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const 1184 { 1185 typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct; 1186 return _Ct(__lhs).count() < _Ct(__rhs).count(); 1187 } 1188}; 1189 1190template <class _LhsDuration> 1191struct __duration_lt<_LhsDuration, _LhsDuration> 1192{ 1193 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1194 bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const 1195 {return __lhs.count() < __rhs.count();} 1196}; 1197 1198template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1199inline _LIBCPP_INLINE_VISIBILITY 1200_LIBCPP_CONSTEXPR 1201bool 1202operator< (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1203{ 1204 return __duration_lt<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs); 1205} 1206 1207// Duration > 1208 1209template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1210inline _LIBCPP_INLINE_VISIBILITY 1211_LIBCPP_CONSTEXPR 1212bool 1213operator> (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1214{ 1215 return __rhs < __lhs; 1216} 1217 1218// Duration <= 1219 1220template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1221inline _LIBCPP_INLINE_VISIBILITY 1222_LIBCPP_CONSTEXPR 1223bool 1224operator<=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1225{ 1226 return !(__rhs < __lhs); 1227} 1228 1229// Duration >= 1230 1231template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1232inline _LIBCPP_INLINE_VISIBILITY 1233_LIBCPP_CONSTEXPR 1234bool 1235operator>=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1236{ 1237 return !(__lhs < __rhs); 1238} 1239 1240// Duration + 1241 1242template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1243inline _LIBCPP_INLINE_VISIBILITY 1244_LIBCPP_CONSTEXPR 1245typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type 1246operator+(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1247{ 1248 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; 1249 return _Cd(_Cd(__lhs).count() + _Cd(__rhs).count()); 1250} 1251 1252// Duration - 1253 1254template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1255inline _LIBCPP_INLINE_VISIBILITY 1256_LIBCPP_CONSTEXPR 1257typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type 1258operator-(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1259{ 1260 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; 1261 return _Cd(_Cd(__lhs).count() - _Cd(__rhs).count()); 1262} 1263 1264// Duration * 1265 1266template <class _Rep1, class _Period, class _Rep2> 1267inline _LIBCPP_INLINE_VISIBILITY 1268_LIBCPP_CONSTEXPR 1269typename enable_if 1270< 1271 is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value, 1272 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1273>::type 1274operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s) 1275{ 1276 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1277 typedef duration<_Cr, _Period> _Cd; 1278 return _Cd(_Cd(__d).count() * static_cast<_Cr>(__s)); 1279} 1280 1281template <class _Rep1, class _Period, class _Rep2> 1282inline _LIBCPP_INLINE_VISIBILITY 1283_LIBCPP_CONSTEXPR 1284typename enable_if 1285< 1286 is_convertible<_Rep1, typename common_type<_Rep1, _Rep2>::type>::value, 1287 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1288>::type 1289operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d) 1290{ 1291 return __d * __s; 1292} 1293 1294// Duration / 1295 1296template <class _Rep1, class _Period, class _Rep2> 1297inline _LIBCPP_INLINE_VISIBILITY 1298_LIBCPP_CONSTEXPR 1299typename enable_if 1300< 1301 !__is_duration<_Rep2>::value && 1302 is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value, 1303 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1304>::type 1305operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s) 1306{ 1307 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1308 typedef duration<_Cr, _Period> _Cd; 1309 return _Cd(_Cd(__d).count() / static_cast<_Cr>(__s)); 1310} 1311 1312template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1313inline _LIBCPP_INLINE_VISIBILITY 1314_LIBCPP_CONSTEXPR 1315typename common_type<_Rep1, _Rep2>::type 1316operator/(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1317{ 1318 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Ct; 1319 return _Ct(__lhs).count() / _Ct(__rhs).count(); 1320} 1321 1322// Duration % 1323 1324template <class _Rep1, class _Period, class _Rep2> 1325inline _LIBCPP_INLINE_VISIBILITY 1326_LIBCPP_CONSTEXPR 1327typename enable_if 1328< 1329 !__is_duration<_Rep2>::value && 1330 is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value, 1331 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1332>::type 1333operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s) 1334{ 1335 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1336 typedef duration<_Cr, _Period> _Cd; 1337 return _Cd(_Cd(__d).count() % static_cast<_Cr>(__s)); 1338} 1339 1340template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1341inline _LIBCPP_INLINE_VISIBILITY 1342_LIBCPP_CONSTEXPR 1343typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type 1344operator%(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1345{ 1346 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1347 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; 1348 return _Cd(static_cast<_Cr>(_Cd(__lhs).count()) % static_cast<_Cr>(_Cd(__rhs).count())); 1349} 1350 1351////////////////////////////////////////////////////////// 1352///////////////////// time_point ///////////////////////// 1353////////////////////////////////////////////////////////// 1354 1355template <class _Clock, class _Duration = typename _Clock::duration> 1356class _LIBCPP_TEMPLATE_VIS time_point 1357{ 1358 static_assert(__is_duration<_Duration>::value, 1359 "Second template parameter of time_point must be a std::chrono::duration"); 1360public: 1361 typedef _Clock clock; 1362 typedef _Duration duration; 1363 typedef typename duration::rep rep; 1364 typedef typename duration::period period; 1365private: 1366 duration __d_; 1367 1368public: 1369 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 time_point() : __d_(duration::zero()) {} 1370 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 explicit time_point(const duration& __d) : __d_(__d) {} 1371 1372 // conversions 1373 template <class _Duration2> 1374 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1375 time_point(const time_point<clock, _Duration2>& t, 1376 typename enable_if 1377 < 1378 is_convertible<_Duration2, duration>::value 1379 >::type* = nullptr) 1380 : __d_(t.time_since_epoch()) {} 1381 1382 // observer 1383 1384 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 duration time_since_epoch() const {return __d_;} 1385 1386 // arithmetic 1387 1388 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 time_point& operator+=(const duration& __d) {__d_ += __d; return *this;} 1389 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 time_point& operator-=(const duration& __d) {__d_ -= __d; return *this;} 1390 1391 // special values 1392 1393 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point min() _NOEXCEPT {return time_point(duration::min());} 1394 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point max() _NOEXCEPT {return time_point(duration::max());} 1395}; 1396 1397} // chrono 1398 1399template <class _Clock, class _Duration1, class _Duration2> 1400struct _LIBCPP_TEMPLATE_VIS common_type<chrono::time_point<_Clock, _Duration1>, 1401 chrono::time_point<_Clock, _Duration2> > 1402{ 1403 typedef chrono::time_point<_Clock, typename common_type<_Duration1, _Duration2>::type> type; 1404}; 1405 1406namespace chrono { 1407 1408template <class _ToDuration, class _Clock, class _Duration> 1409inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1410time_point<_Clock, _ToDuration> 1411time_point_cast(const time_point<_Clock, _Duration>& __t) 1412{ 1413 return time_point<_Clock, _ToDuration>(chrono::duration_cast<_ToDuration>(__t.time_since_epoch())); 1414} 1415 1416#if _LIBCPP_STD_VER > 14 1417template <class _ToDuration, class _Clock, class _Duration> 1418inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1419typename enable_if 1420< 1421 __is_duration<_ToDuration>::value, 1422 time_point<_Clock, _ToDuration> 1423>::type 1424floor(const time_point<_Clock, _Duration>& __t) 1425{ 1426 return time_point<_Clock, _ToDuration>{floor<_ToDuration>(__t.time_since_epoch())}; 1427} 1428 1429template <class _ToDuration, class _Clock, class _Duration> 1430inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1431typename enable_if 1432< 1433 __is_duration<_ToDuration>::value, 1434 time_point<_Clock, _ToDuration> 1435>::type 1436ceil(const time_point<_Clock, _Duration>& __t) 1437{ 1438 return time_point<_Clock, _ToDuration>{ceil<_ToDuration>(__t.time_since_epoch())}; 1439} 1440 1441template <class _ToDuration, class _Clock, class _Duration> 1442inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1443typename enable_if 1444< 1445 __is_duration<_ToDuration>::value, 1446 time_point<_Clock, _ToDuration> 1447>::type 1448round(const time_point<_Clock, _Duration>& __t) 1449{ 1450 return time_point<_Clock, _ToDuration>{round<_ToDuration>(__t.time_since_epoch())}; 1451} 1452 1453template <class _Rep, class _Period> 1454inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1455typename enable_if 1456< 1457 numeric_limits<_Rep>::is_signed, 1458 duration<_Rep, _Period> 1459>::type 1460abs(duration<_Rep, _Period> __d) 1461{ 1462 return __d >= __d.zero() ? +__d : -__d; 1463} 1464#endif 1465 1466// time_point == 1467 1468template <class _Clock, class _Duration1, class _Duration2> 1469inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1470bool 1471operator==(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1472{ 1473 return __lhs.time_since_epoch() == __rhs.time_since_epoch(); 1474} 1475 1476// time_point != 1477 1478template <class _Clock, class _Duration1, class _Duration2> 1479inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1480bool 1481operator!=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1482{ 1483 return !(__lhs == __rhs); 1484} 1485 1486// time_point < 1487 1488template <class _Clock, class _Duration1, class _Duration2> 1489inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1490bool 1491operator<(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1492{ 1493 return __lhs.time_since_epoch() < __rhs.time_since_epoch(); 1494} 1495 1496// time_point > 1497 1498template <class _Clock, class _Duration1, class _Duration2> 1499inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1500bool 1501operator>(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1502{ 1503 return __rhs < __lhs; 1504} 1505 1506// time_point <= 1507 1508template <class _Clock, class _Duration1, class _Duration2> 1509inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1510bool 1511operator<=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1512{ 1513 return !(__rhs < __lhs); 1514} 1515 1516// time_point >= 1517 1518template <class _Clock, class _Duration1, class _Duration2> 1519inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1520bool 1521operator>=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1522{ 1523 return !(__lhs < __rhs); 1524} 1525 1526// time_point operator+(time_point x, duration y); 1527 1528template <class _Clock, class _Duration1, class _Rep2, class _Period2> 1529inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1530time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> 1531operator+(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1532{ 1533 typedef time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> _Tr; 1534 return _Tr (__lhs.time_since_epoch() + __rhs); 1535} 1536 1537// time_point operator+(duration x, time_point y); 1538 1539template <class _Rep1, class _Period1, class _Clock, class _Duration2> 1540inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1541time_point<_Clock, typename common_type<duration<_Rep1, _Period1>, _Duration2>::type> 1542operator+(const duration<_Rep1, _Period1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1543{ 1544 return __rhs + __lhs; 1545} 1546 1547// time_point operator-(time_point x, duration y); 1548 1549template <class _Clock, class _Duration1, class _Rep2, class _Period2> 1550inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1551time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> 1552operator-(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1553{ 1554 typedef time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> _Ret; 1555 return _Ret(__lhs.time_since_epoch() -__rhs); 1556} 1557 1558// duration operator-(time_point x, time_point y); 1559 1560template <class _Clock, class _Duration1, class _Duration2> 1561inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1562typename common_type<_Duration1, _Duration2>::type 1563operator-(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1564{ 1565 return __lhs.time_since_epoch() - __rhs.time_since_epoch(); 1566} 1567 1568////////////////////////////////////////////////////////// 1569/////////////////////// clocks /////////////////////////// 1570////////////////////////////////////////////////////////// 1571 1572class _LIBCPP_TYPE_VIS system_clock 1573{ 1574public: 1575 typedef microseconds duration; 1576 typedef duration::rep rep; 1577 typedef duration::period period; 1578 typedef chrono::time_point<system_clock> time_point; 1579 static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false; 1580 1581 static time_point now() _NOEXCEPT; 1582 static time_t to_time_t (const time_point& __t) _NOEXCEPT; 1583 static time_point from_time_t(time_t __t) _NOEXCEPT; 1584}; 1585 1586#ifndef _LIBCPP_HAS_NO_MONOTONIC_CLOCK 1587class _LIBCPP_TYPE_VIS steady_clock 1588{ 1589public: 1590 typedef nanoseconds duration; 1591 typedef duration::rep rep; 1592 typedef duration::period period; 1593 typedef chrono::time_point<steady_clock, duration> time_point; 1594 static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = true; 1595 1596 static time_point now() _NOEXCEPT; 1597}; 1598 1599typedef steady_clock high_resolution_clock; 1600#else 1601typedef system_clock high_resolution_clock; 1602#endif 1603 1604#if _LIBCPP_STD_VER > 17 1605// [time.clock.file], type file_clock 1606using file_clock = _VSTD_FS::_FilesystemClock; 1607 1608template<class _Duration> 1609using file_time = time_point<file_clock, _Duration>; 1610 1611 1612template <class _Duration> 1613using sys_time = time_point<system_clock, _Duration>; 1614using sys_seconds = sys_time<seconds>; 1615using sys_days = sys_time<days>; 1616 1617struct local_t {}; 1618template<class Duration> 1619using local_time = time_point<local_t, Duration>; 1620using local_seconds = local_time<seconds>; 1621using local_days = local_time<days>; 1622 1623 1624struct last_spec { explicit last_spec() = default; }; 1625 1626class day { 1627private: 1628 unsigned char __d; 1629public: 1630 day() = default; 1631 explicit inline constexpr day(unsigned __val) noexcept : __d(static_cast<unsigned char>(__val)) {} 1632 inline constexpr day& operator++() noexcept { ++__d; return *this; } 1633 inline constexpr day operator++(int) noexcept { day __tmp = *this; ++(*this); return __tmp; } 1634 inline constexpr day& operator--() noexcept { --__d; return *this; } 1635 inline constexpr day operator--(int) noexcept { day __tmp = *this; --(*this); return __tmp; } 1636 constexpr day& operator+=(const days& __dd) noexcept; 1637 constexpr day& operator-=(const days& __dd) noexcept; 1638 explicit inline constexpr operator unsigned() const noexcept { return __d; } 1639 inline constexpr bool ok() const noexcept { return __d >= 1 && __d <= 31; } 1640 }; 1641 1642 1643inline constexpr 1644bool operator==(const day& __lhs, const day& __rhs) noexcept 1645{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } 1646 1647inline constexpr 1648bool operator!=(const day& __lhs, const day& __rhs) noexcept 1649{ return !(__lhs == __rhs); } 1650 1651inline constexpr 1652bool operator< (const day& __lhs, const day& __rhs) noexcept 1653{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); } 1654 1655inline constexpr 1656bool operator> (const day& __lhs, const day& __rhs) noexcept 1657{ return __rhs < __lhs; } 1658 1659inline constexpr 1660bool operator<=(const day& __lhs, const day& __rhs) noexcept 1661{ return !(__rhs < __lhs);} 1662 1663inline constexpr 1664bool operator>=(const day& __lhs, const day& __rhs) noexcept 1665{ return !(__lhs < __rhs); } 1666 1667inline constexpr 1668day operator+ (const day& __lhs, const days& __rhs) noexcept 1669{ return day(static_cast<unsigned>(__lhs) + __rhs.count()); } 1670 1671inline constexpr 1672day operator+ (const days& __lhs, const day& __rhs) noexcept 1673{ return __rhs + __lhs; } 1674 1675inline constexpr 1676day operator- (const day& __lhs, const days& __rhs) noexcept 1677{ return __lhs + -__rhs; } 1678 1679inline constexpr 1680days operator-(const day& __lhs, const day& __rhs) noexcept 1681{ return days(static_cast<int>(static_cast<unsigned>(__lhs)) - 1682 static_cast<int>(static_cast<unsigned>(__rhs))); } 1683 1684inline constexpr day& day::operator+=(const days& __dd) noexcept 1685{ *this = *this + __dd; return *this; } 1686 1687inline constexpr day& day::operator-=(const days& __dd) noexcept 1688{ *this = *this - __dd; return *this; } 1689 1690 1691class month { 1692private: 1693 unsigned char __m; 1694public: 1695 month() = default; 1696 explicit inline constexpr month(unsigned __val) noexcept : __m(static_cast<unsigned char>(__val)) {} 1697 inline constexpr month& operator++() noexcept { ++__m; return *this; } 1698 inline constexpr month operator++(int) noexcept { month __tmp = *this; ++(*this); return __tmp; } 1699 inline constexpr month& operator--() noexcept { --__m; return *this; } 1700 inline constexpr month operator--(int) noexcept { month __tmp = *this; --(*this); return __tmp; } 1701 constexpr month& operator+=(const months& __m1) noexcept; 1702 constexpr month& operator-=(const months& __m1) noexcept; 1703 explicit inline constexpr operator unsigned() const noexcept { return __m; } 1704 inline constexpr bool ok() const noexcept { return __m >= 1 && __m <= 12; } 1705}; 1706 1707 1708inline constexpr 1709bool operator==(const month& __lhs, const month& __rhs) noexcept 1710{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } 1711 1712inline constexpr 1713bool operator!=(const month& __lhs, const month& __rhs) noexcept 1714{ return !(__lhs == __rhs); } 1715 1716inline constexpr 1717bool operator< (const month& __lhs, const month& __rhs) noexcept 1718{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); } 1719 1720inline constexpr 1721bool operator> (const month& __lhs, const month& __rhs) noexcept 1722{ return __rhs < __lhs; } 1723 1724inline constexpr 1725bool operator<=(const month& __lhs, const month& __rhs) noexcept 1726{ return !(__rhs < __lhs); } 1727 1728inline constexpr 1729bool operator>=(const month& __lhs, const month& __rhs) noexcept 1730{ return !(__lhs < __rhs); } 1731 1732inline constexpr 1733month operator+ (const month& __lhs, const months& __rhs) noexcept 1734{ 1735 auto const __mu = static_cast<long long>(static_cast<unsigned>(__lhs)) + (__rhs.count() - 1); 1736 auto const __yr = (__mu >= 0 ? __mu : __mu - 11) / 12; 1737 return month{static_cast<unsigned>(__mu - __yr * 12 + 1)}; 1738} 1739 1740inline constexpr 1741month operator+ (const months& __lhs, const month& __rhs) noexcept 1742{ return __rhs + __lhs; } 1743 1744inline constexpr 1745month operator- (const month& __lhs, const months& __rhs) noexcept 1746{ return __lhs + -__rhs; } 1747 1748inline constexpr 1749months operator-(const month& __lhs, const month& __rhs) noexcept 1750{ 1751 auto const __dm = static_cast<unsigned>(__lhs) - static_cast<unsigned>(__rhs); 1752 return months(__dm <= 11 ? __dm : __dm + 12); 1753} 1754 1755inline constexpr month& month::operator+=(const months& __dm) noexcept 1756{ *this = *this + __dm; return *this; } 1757 1758inline constexpr month& month::operator-=(const months& __dm) noexcept 1759{ *this = *this - __dm; return *this; } 1760 1761 1762class year { 1763private: 1764 short __y; 1765public: 1766 year() = default; 1767 explicit inline constexpr year(int __val) noexcept : __y(static_cast<short>(__val)) {} 1768 1769 inline constexpr year& operator++() noexcept { ++__y; return *this; } 1770 inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; } 1771 inline constexpr year& operator--() noexcept { --__y; return *this; } 1772 inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; } 1773 constexpr year& operator+=(const years& __dy) noexcept; 1774 constexpr year& operator-=(const years& __dy) noexcept; 1775 inline constexpr year operator+() const noexcept { return *this; } 1776 inline constexpr year operator-() const noexcept { return year{-__y}; } 1777 1778 inline constexpr bool is_leap() const noexcept { return __y % 4 == 0 && (__y % 100 != 0 || __y % 400 == 0); } 1779 explicit inline constexpr operator int() const noexcept { return __y; } 1780 constexpr bool ok() const noexcept; 1781 static inline constexpr year min() noexcept { return year{-32767}; } 1782 static inline constexpr year max() noexcept { return year{ 32767}; } 1783}; 1784 1785 1786inline constexpr 1787bool operator==(const year& __lhs, const year& __rhs) noexcept 1788{ return static_cast<int>(__lhs) == static_cast<int>(__rhs); } 1789 1790inline constexpr 1791bool operator!=(const year& __lhs, const year& __rhs) noexcept 1792{ return !(__lhs == __rhs); } 1793 1794inline constexpr 1795bool operator< (const year& __lhs, const year& __rhs) noexcept 1796{ return static_cast<int>(__lhs) < static_cast<int>(__rhs); } 1797 1798inline constexpr 1799bool operator> (const year& __lhs, const year& __rhs) noexcept 1800{ return __rhs < __lhs; } 1801 1802inline constexpr 1803bool operator<=(const year& __lhs, const year& __rhs) noexcept 1804{ return !(__rhs < __lhs); } 1805 1806inline constexpr 1807bool operator>=(const year& __lhs, const year& __rhs) noexcept 1808{ return !(__lhs < __rhs); } 1809 1810inline constexpr 1811year operator+ (const year& __lhs, const years& __rhs) noexcept 1812{ return year(static_cast<int>(__lhs) + __rhs.count()); } 1813 1814inline constexpr 1815year operator+ (const years& __lhs, const year& __rhs) noexcept 1816{ return __rhs + __lhs; } 1817 1818inline constexpr 1819year operator- (const year& __lhs, const years& __rhs) noexcept 1820{ return __lhs + -__rhs; } 1821 1822inline constexpr 1823years operator-(const year& __lhs, const year& __rhs) noexcept 1824{ return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; } 1825 1826 1827inline constexpr year& year::operator+=(const years& __dy) noexcept 1828{ *this = *this + __dy; return *this; } 1829 1830inline constexpr year& year::operator-=(const years& __dy) noexcept 1831{ *this = *this - __dy; return *this; } 1832 1833inline constexpr bool year::ok() const noexcept 1834{ return static_cast<int>(min()) <= __y && __y <= static_cast<int>(max()); } 1835 1836class weekday_indexed; 1837class weekday_last; 1838 1839class weekday { 1840private: 1841 unsigned char __wd; 1842 static constexpr unsigned char __weekday_from_days(int __days) noexcept; 1843public: 1844 weekday() = default; 1845 inline explicit constexpr weekday(unsigned __val) noexcept : __wd(static_cast<unsigned char>(__val == 7 ? 0 : __val)) {} 1846 inline constexpr weekday(const sys_days& __sysd) noexcept 1847 : __wd(__weekday_from_days(__sysd.time_since_epoch().count())) {} 1848 inline explicit constexpr weekday(const local_days& __locd) noexcept 1849 : __wd(__weekday_from_days(__locd.time_since_epoch().count())) {} 1850 1851 inline constexpr weekday& operator++() noexcept { __wd = (__wd == 6 ? 0 : __wd + 1); return *this; } 1852 inline constexpr weekday operator++(int) noexcept { weekday __tmp = *this; ++(*this); return __tmp; } 1853 inline constexpr weekday& operator--() noexcept { __wd = (__wd == 0 ? 6 : __wd - 1); return *this; } 1854 inline constexpr weekday operator--(int) noexcept { weekday __tmp = *this; --(*this); return __tmp; } 1855 constexpr weekday& operator+=(const days& __dd) noexcept; 1856 constexpr weekday& operator-=(const days& __dd) noexcept; 1857 inline constexpr unsigned c_encoding() const noexcept { return __wd; } 1858 inline constexpr unsigned iso_encoding() const noexcept { return __wd == 0u ? 7 : __wd; } 1859 inline constexpr bool ok() const noexcept { return __wd <= 6; } 1860 constexpr weekday_indexed operator[](unsigned __index) const noexcept; 1861 constexpr weekday_last operator[](last_spec) const noexcept; 1862}; 1863 1864 1865// https://howardhinnant.github.io/date_algorithms.html#weekday_from_days 1866inline constexpr 1867unsigned char weekday::__weekday_from_days(int __days) noexcept 1868{ 1869 return static_cast<unsigned char>( 1870 static_cast<unsigned>(__days >= -4 ? (__days+4) % 7 : (__days+5) % 7 + 6) 1871 ); 1872} 1873 1874inline constexpr 1875bool operator==(const weekday& __lhs, const weekday& __rhs) noexcept 1876{ return __lhs.c_encoding() == __rhs.c_encoding(); } 1877 1878inline constexpr 1879bool operator!=(const weekday& __lhs, const weekday& __rhs) noexcept 1880{ return !(__lhs == __rhs); } 1881 1882inline constexpr 1883bool operator< (const weekday& __lhs, const weekday& __rhs) noexcept 1884{ return __lhs.c_encoding() < __rhs.c_encoding(); } 1885 1886inline constexpr 1887bool operator> (const weekday& __lhs, const weekday& __rhs) noexcept 1888{ return __rhs < __lhs; } 1889 1890inline constexpr 1891bool operator<=(const weekday& __lhs, const weekday& __rhs) noexcept 1892{ return !(__rhs < __lhs);} 1893 1894inline constexpr 1895bool operator>=(const weekday& __lhs, const weekday& __rhs) noexcept 1896{ return !(__lhs < __rhs); } 1897 1898constexpr weekday operator+(const weekday& __lhs, const days& __rhs) noexcept 1899{ 1900 auto const __mu = static_cast<long long>(__lhs.c_encoding()) + __rhs.count(); 1901 auto const __yr = (__mu >= 0 ? __mu : __mu - 6) / 7; 1902 return weekday{static_cast<unsigned>(__mu - __yr * 7)}; 1903} 1904 1905constexpr weekday operator+(const days& __lhs, const weekday& __rhs) noexcept 1906{ return __rhs + __lhs; } 1907 1908constexpr weekday operator-(const weekday& __lhs, const days& __rhs) noexcept 1909{ return __lhs + -__rhs; } 1910 1911constexpr days operator-(const weekday& __lhs, const weekday& __rhs) noexcept 1912{ 1913 const int __wdu = __lhs.c_encoding() - __rhs.c_encoding(); 1914 const int __wk = (__wdu >= 0 ? __wdu : __wdu-6) / 7; 1915 return days{__wdu - __wk * 7}; 1916} 1917 1918inline constexpr weekday& weekday::operator+=(const days& __dd) noexcept 1919{ *this = *this + __dd; return *this; } 1920 1921inline constexpr weekday& weekday::operator-=(const days& __dd) noexcept 1922{ *this = *this - __dd; return *this; } 1923 1924 1925class weekday_indexed { 1926private: 1927 chrono::weekday __wd; 1928 unsigned char __idx; 1929public: 1930 weekday_indexed() = default; 1931 inline constexpr weekday_indexed(const chrono::weekday& __wdval, unsigned __idxval) noexcept 1932 : __wd{__wdval}, __idx(__idxval) {} 1933 inline constexpr chrono::weekday weekday() const noexcept { return __wd; } 1934 inline constexpr unsigned index() const noexcept { return __idx; } 1935 inline constexpr bool ok() const noexcept { return __wd.ok() && __idx >= 1 && __idx <= 5; } 1936}; 1937 1938inline constexpr 1939bool operator==(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept 1940{ return __lhs.weekday() == __rhs.weekday() && __lhs.index() == __rhs.index(); } 1941 1942inline constexpr 1943bool operator!=(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept 1944{ return !(__lhs == __rhs); } 1945 1946 1947class weekday_last { 1948private: 1949 chrono::weekday __wd; 1950public: 1951 explicit constexpr weekday_last(const chrono::weekday& __val) noexcept 1952 : __wd{__val} {} 1953 constexpr chrono::weekday weekday() const noexcept { return __wd; } 1954 constexpr bool ok() const noexcept { return __wd.ok(); } 1955}; 1956 1957inline constexpr 1958bool operator==(const weekday_last& __lhs, const weekday_last& __rhs) noexcept 1959{ return __lhs.weekday() == __rhs.weekday(); } 1960 1961inline constexpr 1962bool operator!=(const weekday_last& __lhs, const weekday_last& __rhs) noexcept 1963{ return !(__lhs == __rhs); } 1964 1965inline constexpr 1966weekday_indexed weekday::operator[](unsigned __index) const noexcept { return weekday_indexed{*this, __index}; } 1967 1968inline constexpr 1969weekday_last weekday::operator[](last_spec) const noexcept { return weekday_last{*this}; } 1970 1971 1972inline constexpr last_spec last{}; 1973inline constexpr weekday Sunday{0}; 1974inline constexpr weekday Monday{1}; 1975inline constexpr weekday Tuesday{2}; 1976inline constexpr weekday Wednesday{3}; 1977inline constexpr weekday Thursday{4}; 1978inline constexpr weekday Friday{5}; 1979inline constexpr weekday Saturday{6}; 1980 1981inline constexpr month January{1}; 1982inline constexpr month February{2}; 1983inline constexpr month March{3}; 1984inline constexpr month April{4}; 1985inline constexpr month May{5}; 1986inline constexpr month June{6}; 1987inline constexpr month July{7}; 1988inline constexpr month August{8}; 1989inline constexpr month September{9}; 1990inline constexpr month October{10}; 1991inline constexpr month November{11}; 1992inline constexpr month December{12}; 1993 1994 1995class month_day { 1996private: 1997 chrono::month __m; 1998 chrono::day __d; 1999public: 2000 month_day() = default; 2001 constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept 2002 : __m{__mval}, __d{__dval} {} 2003 inline constexpr chrono::month month() const noexcept { return __m; } 2004 inline constexpr chrono::day day() const noexcept { return __d; } 2005 constexpr bool ok() const noexcept; 2006}; 2007 2008inline constexpr 2009bool month_day::ok() const noexcept 2010{ 2011 if (!__m.ok()) return false; 2012 const unsigned __dval = static_cast<unsigned>(__d); 2013 if (__dval < 1 || __dval > 31) return false; 2014 if (__dval <= 29) return true; 2015// Now we've got either 30 or 31 2016 const unsigned __mval = static_cast<unsigned>(__m); 2017 if (__mval == 2) return false; 2018 if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11) 2019 return __dval == 30; 2020 return true; 2021} 2022 2023inline constexpr 2024bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept 2025{ return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); } 2026 2027inline constexpr 2028bool operator!=(const month_day& __lhs, const month_day& __rhs) noexcept 2029{ return !(__lhs == __rhs); } 2030 2031inline constexpr 2032month_day operator/(const month& __lhs, const day& __rhs) noexcept 2033{ return month_day{__lhs, __rhs}; } 2034 2035constexpr 2036month_day operator/(const day& __lhs, const month& __rhs) noexcept 2037{ return __rhs / __lhs; } 2038 2039inline constexpr 2040month_day operator/(const month& __lhs, int __rhs) noexcept 2041{ return __lhs / day(__rhs); } 2042 2043constexpr 2044month_day operator/(int __lhs, const day& __rhs) noexcept 2045{ return month(__lhs) / __rhs; } 2046 2047constexpr 2048month_day operator/(const day& __lhs, int __rhs) noexcept 2049{ return month(__rhs) / __lhs; } 2050 2051 2052inline constexpr 2053bool operator< (const month_day& __lhs, const month_day& __rhs) noexcept 2054{ return __lhs.month() != __rhs.month() ? __lhs.month() < __rhs.month() : __lhs.day() < __rhs.day(); } 2055 2056inline constexpr 2057bool operator> (const month_day& __lhs, const month_day& __rhs) noexcept 2058{ return __rhs < __lhs; } 2059 2060inline constexpr 2061bool operator<=(const month_day& __lhs, const month_day& __rhs) noexcept 2062{ return !(__rhs < __lhs);} 2063 2064inline constexpr 2065bool operator>=(const month_day& __lhs, const month_day& __rhs) noexcept 2066{ return !(__lhs < __rhs); } 2067 2068 2069 2070class month_day_last { 2071private: 2072 chrono::month __m; 2073public: 2074 explicit constexpr month_day_last(const chrono::month& __val) noexcept 2075 : __m{__val} {} 2076 inline constexpr chrono::month month() const noexcept { return __m; } 2077 inline constexpr bool ok() const noexcept { return __m.ok(); } 2078}; 2079 2080inline constexpr 2081bool operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2082{ return __lhs.month() == __rhs.month(); } 2083 2084inline constexpr 2085bool operator!=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2086{ return !(__lhs == __rhs); } 2087 2088inline constexpr 2089bool operator< (const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2090{ return __lhs.month() < __rhs.month(); } 2091 2092inline constexpr 2093bool operator> (const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2094{ return __rhs < __lhs; } 2095 2096inline constexpr 2097bool operator<=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2098{ return !(__rhs < __lhs);} 2099 2100inline constexpr 2101bool operator>=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2102{ return !(__lhs < __rhs); } 2103 2104inline constexpr 2105month_day_last operator/(const month& __lhs, last_spec) noexcept 2106{ return month_day_last{__lhs}; } 2107 2108inline constexpr 2109month_day_last operator/(last_spec, const month& __rhs) noexcept 2110{ return month_day_last{__rhs}; } 2111 2112inline constexpr 2113month_day_last operator/(int __lhs, last_spec) noexcept 2114{ return month_day_last{month(__lhs)}; } 2115 2116inline constexpr 2117month_day_last operator/(last_spec, int __rhs) noexcept 2118{ return month_day_last{month(__rhs)}; } 2119 2120 2121class month_weekday { 2122private: 2123 chrono::month __m; 2124 chrono::weekday_indexed __wdi; 2125public: 2126 month_weekday() = default; 2127 constexpr month_weekday(const chrono::month& __mval, const chrono::weekday_indexed& __wdival) noexcept 2128 : __m{__mval}, __wdi{__wdival} {} 2129 inline constexpr chrono::month month() const noexcept { return __m; } 2130 inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; } 2131 inline constexpr bool ok() const noexcept { return __m.ok() && __wdi.ok(); } 2132}; 2133 2134inline constexpr 2135bool operator==(const month_weekday& __lhs, const month_weekday& __rhs) noexcept 2136{ return __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); } 2137 2138inline constexpr 2139bool operator!=(const month_weekday& __lhs, const month_weekday& __rhs) noexcept 2140{ return !(__lhs == __rhs); } 2141 2142inline constexpr 2143month_weekday operator/(const month& __lhs, const weekday_indexed& __rhs) noexcept 2144{ return month_weekday{__lhs, __rhs}; } 2145 2146inline constexpr 2147month_weekday operator/(int __lhs, const weekday_indexed& __rhs) noexcept 2148{ return month_weekday{month(__lhs), __rhs}; } 2149 2150inline constexpr 2151month_weekday operator/(const weekday_indexed& __lhs, const month& __rhs) noexcept 2152{ return month_weekday{__rhs, __lhs}; } 2153 2154inline constexpr 2155month_weekday operator/(const weekday_indexed& __lhs, int __rhs) noexcept 2156{ return month_weekday{month(__rhs), __lhs}; } 2157 2158 2159class month_weekday_last { 2160 chrono::month __m; 2161 chrono::weekday_last __wdl; 2162 public: 2163 constexpr month_weekday_last(const chrono::month& __mval, const chrono::weekday_last& __wdlval) noexcept 2164 : __m{__mval}, __wdl{__wdlval} {} 2165 inline constexpr chrono::month month() const noexcept { return __m; } 2166 inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; } 2167 inline constexpr bool ok() const noexcept { return __m.ok() && __wdl.ok(); } 2168}; 2169 2170inline constexpr 2171bool operator==(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept 2172{ return __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); } 2173 2174inline constexpr 2175bool operator!=(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept 2176{ return !(__lhs == __rhs); } 2177 2178 2179inline constexpr 2180month_weekday_last operator/(const month& __lhs, const weekday_last& __rhs) noexcept 2181{ return month_weekday_last{__lhs, __rhs}; } 2182 2183inline constexpr 2184month_weekday_last operator/(int __lhs, const weekday_last& __rhs) noexcept 2185{ return month_weekday_last{month(__lhs), __rhs}; } 2186 2187inline constexpr 2188month_weekday_last operator/(const weekday_last& __lhs, const month& __rhs) noexcept 2189{ return month_weekday_last{__rhs, __lhs}; } 2190 2191inline constexpr 2192month_weekday_last operator/(const weekday_last& __lhs, int __rhs) noexcept 2193{ return month_weekday_last{month(__rhs), __lhs}; } 2194 2195 2196class year_month { 2197 chrono::year __y; 2198 chrono::month __m; 2199public: 2200 year_month() = default; 2201 constexpr year_month(const chrono::year& __yval, const chrono::month& __mval) noexcept 2202 : __y{__yval}, __m{__mval} {} 2203 inline constexpr chrono::year year() const noexcept { return __y; } 2204 inline constexpr chrono::month month() const noexcept { return __m; } 2205 inline constexpr year_month& operator+=(const months& __dm) noexcept { this->__m += __dm; return *this; } 2206 inline constexpr year_month& operator-=(const months& __dm) noexcept { this->__m -= __dm; return *this; } 2207 inline constexpr year_month& operator+=(const years& __dy) noexcept { this->__y += __dy; return *this; } 2208 inline constexpr year_month& operator-=(const years& __dy) noexcept { this->__y -= __dy; return *this; } 2209 inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok(); } 2210}; 2211 2212inline constexpr 2213year_month operator/(const year& __y, const month& __m) noexcept { return year_month{__y, __m}; } 2214 2215inline constexpr 2216year_month operator/(const year& __y, int __m) noexcept { return year_month{__y, month(__m)}; } 2217 2218inline constexpr 2219bool operator==(const year_month& __lhs, const year_month& __rhs) noexcept 2220{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month(); } 2221 2222inline constexpr 2223bool operator!=(const year_month& __lhs, const year_month& __rhs) noexcept 2224{ return !(__lhs == __rhs); } 2225 2226inline constexpr 2227bool operator< (const year_month& __lhs, const year_month& __rhs) noexcept 2228{ return __lhs.year() != __rhs.year() ? __lhs.year() < __rhs.year() : __lhs.month() < __rhs.month(); } 2229 2230inline constexpr 2231bool operator> (const year_month& __lhs, const year_month& __rhs) noexcept 2232{ return __rhs < __lhs; } 2233 2234inline constexpr 2235bool operator<=(const year_month& __lhs, const year_month& __rhs) noexcept 2236{ return !(__rhs < __lhs);} 2237 2238inline constexpr 2239bool operator>=(const year_month& __lhs, const year_month& __rhs) noexcept 2240{ return !(__lhs < __rhs); } 2241 2242constexpr year_month operator+(const year_month& __lhs, const months& __rhs) noexcept 2243{ 2244 int __dmi = static_cast<int>(static_cast<unsigned>(__lhs.month())) - 1 + __rhs.count(); 2245 const int __dy = (__dmi >= 0 ? __dmi : __dmi-11) / 12; 2246 __dmi = __dmi - __dy * 12 + 1; 2247 return (__lhs.year() + years(__dy)) / month(static_cast<unsigned>(__dmi)); 2248} 2249 2250constexpr year_month operator+(const months& __lhs, const year_month& __rhs) noexcept 2251{ return __rhs + __lhs; } 2252 2253constexpr year_month operator+(const year_month& __lhs, const years& __rhs) noexcept 2254{ return (__lhs.year() + __rhs) / __lhs.month(); } 2255 2256constexpr year_month operator+(const years& __lhs, const year_month& __rhs) noexcept 2257{ return __rhs + __lhs; } 2258 2259constexpr months operator-(const year_month& __lhs, const year_month& __rhs) noexcept 2260{ return (__lhs.year() - __rhs.year()) + months(static_cast<unsigned>(__lhs.month()) - static_cast<unsigned>(__rhs.month())); } 2261 2262constexpr year_month operator-(const year_month& __lhs, const months& __rhs) noexcept 2263{ return __lhs + -__rhs; } 2264 2265constexpr year_month operator-(const year_month& __lhs, const years& __rhs) noexcept 2266{ return __lhs + -__rhs; } 2267 2268class year_month_day_last; 2269 2270class year_month_day { 2271private: 2272 chrono::year __y; 2273 chrono::month __m; 2274 chrono::day __d; 2275public: 2276 year_month_day() = default; 2277 inline constexpr year_month_day( 2278 const chrono::year& __yval, const chrono::month& __mval, const chrono::day& __dval) noexcept 2279 : __y{__yval}, __m{__mval}, __d{__dval} {} 2280 constexpr year_month_day(const year_month_day_last& __ymdl) noexcept; 2281 inline constexpr year_month_day(const sys_days& __sysd) noexcept 2282 : year_month_day(__from_days(__sysd.time_since_epoch())) {} 2283 inline explicit constexpr year_month_day(const local_days& __locd) noexcept 2284 : year_month_day(__from_days(__locd.time_since_epoch())) {} 2285 2286 constexpr year_month_day& operator+=(const months& __dm) noexcept; 2287 constexpr year_month_day& operator-=(const months& __dm) noexcept; 2288 constexpr year_month_day& operator+=(const years& __dy) noexcept; 2289 constexpr year_month_day& operator-=(const years& __dy) noexcept; 2290 2291 inline constexpr chrono::year year() const noexcept { return __y; } 2292 inline constexpr chrono::month month() const noexcept { return __m; } 2293 inline constexpr chrono::day day() const noexcept { return __d; } 2294 inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } 2295 inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } 2296 2297 constexpr bool ok() const noexcept; 2298 2299 static constexpr year_month_day __from_days(days __d) noexcept; 2300 constexpr days __to_days() const noexcept; 2301}; 2302 2303 2304// https://howardhinnant.github.io/date_algorithms.html#civil_from_days 2305inline constexpr 2306year_month_day 2307year_month_day::__from_days(days __d) noexcept 2308{ 2309 static_assert(numeric_limits<unsigned>::digits >= 18, ""); 2310 static_assert(numeric_limits<int>::digits >= 20 , ""); 2311 const int __z = __d.count() + 719468; 2312 const int __era = (__z >= 0 ? __z : __z - 146096) / 146097; 2313 const unsigned __doe = static_cast<unsigned>(__z - __era * 146097); // [0, 146096] 2314 const unsigned __yoe = (__doe - __doe/1460 + __doe/36524 - __doe/146096) / 365; // [0, 399] 2315 const int __yr = static_cast<int>(__yoe) + __era * 400; 2316 const unsigned __doy = __doe - (365 * __yoe + __yoe/4 - __yoe/100); // [0, 365] 2317 const unsigned __mp = (5 * __doy + 2)/153; // [0, 11] 2318 const unsigned __dy = __doy - (153 * __mp + 2)/5 + 1; // [1, 31] 2319 const unsigned __mth = __mp + (__mp < 10 ? 3 : -9); // [1, 12] 2320 return year_month_day{chrono::year{__yr + (__mth <= 2)}, chrono::month{__mth}, chrono::day{__dy}}; 2321} 2322 2323// https://howardhinnant.github.io/date_algorithms.html#days_from_civil 2324inline constexpr days year_month_day::__to_days() const noexcept 2325{ 2326 static_assert(numeric_limits<unsigned>::digits >= 18, ""); 2327 static_assert(numeric_limits<int>::digits >= 20 , ""); 2328 2329 const int __yr = static_cast<int>(__y) - (__m <= February); 2330 const unsigned __mth = static_cast<unsigned>(__m); 2331 const unsigned __dy = static_cast<unsigned>(__d); 2332 2333 const int __era = (__yr >= 0 ? __yr : __yr - 399) / 400; 2334 const unsigned __yoe = static_cast<unsigned>(__yr - __era * 400); // [0, 399] 2335 const unsigned __doy = (153 * (__mth + (__mth > 2 ? -3 : 9)) + 2) / 5 + __dy-1; // [0, 365] 2336 const unsigned __doe = __yoe * 365 + __yoe/4 - __yoe/100 + __doy; // [0, 146096] 2337 return days{__era * 146097 + static_cast<int>(__doe) - 719468}; 2338} 2339 2340inline constexpr 2341bool operator==(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2342{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); } 2343 2344inline constexpr 2345bool operator!=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2346{ return !(__lhs == __rhs); } 2347 2348inline constexpr 2349bool operator< (const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2350{ 2351 if (__lhs.year() < __rhs.year()) return true; 2352 if (__lhs.year() > __rhs.year()) return false; 2353 if (__lhs.month() < __rhs.month()) return true; 2354 if (__lhs.month() > __rhs.month()) return false; 2355 return __lhs.day() < __rhs.day(); 2356} 2357 2358inline constexpr 2359bool operator> (const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2360{ return __rhs < __lhs; } 2361 2362inline constexpr 2363bool operator<=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2364{ return !(__rhs < __lhs);} 2365 2366inline constexpr 2367bool operator>=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2368{ return !(__lhs < __rhs); } 2369 2370inline constexpr 2371year_month_day operator/(const year_month& __lhs, const day& __rhs) noexcept 2372{ return year_month_day{__lhs.year(), __lhs.month(), __rhs}; } 2373 2374inline constexpr 2375year_month_day operator/(const year_month& __lhs, int __rhs) noexcept 2376{ return __lhs / day(__rhs); } 2377 2378inline constexpr 2379year_month_day operator/(const year& __lhs, const month_day& __rhs) noexcept 2380{ return __lhs / __rhs.month() / __rhs.day(); } 2381 2382inline constexpr 2383year_month_day operator/(int __lhs, const month_day& __rhs) noexcept 2384{ return year(__lhs) / __rhs; } 2385 2386inline constexpr 2387year_month_day operator/(const month_day& __lhs, const year& __rhs) noexcept 2388{ return __rhs / __lhs; } 2389 2390inline constexpr 2391year_month_day operator/(const month_day& __lhs, int __rhs) noexcept 2392{ return year(__rhs) / __lhs; } 2393 2394 2395inline constexpr 2396year_month_day operator+(const year_month_day& __lhs, const months& __rhs) noexcept 2397{ return (__lhs.year()/__lhs.month() + __rhs)/__lhs.day(); } 2398 2399inline constexpr 2400year_month_day operator+(const months& __lhs, const year_month_day& __rhs) noexcept 2401{ return __rhs + __lhs; } 2402 2403inline constexpr 2404year_month_day operator-(const year_month_day& __lhs, const months& __rhs) noexcept 2405{ return __lhs + -__rhs; } 2406 2407inline constexpr 2408year_month_day operator+(const year_month_day& __lhs, const years& __rhs) noexcept 2409{ return (__lhs.year() + __rhs) / __lhs.month() / __lhs.day(); } 2410 2411inline constexpr 2412year_month_day operator+(const years& __lhs, const year_month_day& __rhs) noexcept 2413{ return __rhs + __lhs; } 2414 2415inline constexpr 2416year_month_day operator-(const year_month_day& __lhs, const years& __rhs) noexcept 2417{ return __lhs + -__rhs; } 2418 2419inline constexpr year_month_day& year_month_day::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } 2420inline constexpr year_month_day& year_month_day::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } 2421inline constexpr year_month_day& year_month_day::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2422inline constexpr year_month_day& year_month_day::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2423 2424class year_month_day_last { 2425private: 2426 chrono::year __y; 2427 chrono::month_day_last __mdl; 2428public: 2429 constexpr year_month_day_last(const year& __yval, const month_day_last& __mdlval) noexcept 2430 : __y{__yval}, __mdl{__mdlval} {} 2431 2432 constexpr year_month_day_last& operator+=(const months& __m) noexcept; 2433 constexpr year_month_day_last& operator-=(const months& __m) noexcept; 2434 constexpr year_month_day_last& operator+=(const years& __y) noexcept; 2435 constexpr year_month_day_last& operator-=(const years& __y) noexcept; 2436 2437 inline constexpr chrono::year year() const noexcept { return __y; } 2438 inline constexpr chrono::month month() const noexcept { return __mdl.month(); } 2439 inline constexpr chrono::month_day_last month_day_last() const noexcept { return __mdl; } 2440 constexpr chrono::day day() const noexcept; 2441 inline constexpr operator sys_days() const noexcept { return sys_days{year()/month()/day()}; } 2442 inline explicit constexpr operator local_days() const noexcept { return local_days{year()/month()/day()}; } 2443 inline constexpr bool ok() const noexcept { return __y.ok() && __mdl.ok(); } 2444}; 2445 2446inline constexpr 2447chrono::day year_month_day_last::day() const noexcept 2448{ 2449 constexpr chrono::day __d[] = 2450 { 2451 chrono::day(31), chrono::day(28), chrono::day(31), 2452 chrono::day(30), chrono::day(31), chrono::day(30), 2453 chrono::day(31), chrono::day(31), chrono::day(30), 2454 chrono::day(31), chrono::day(30), chrono::day(31) 2455 }; 2456 return (month() != February || !__y.is_leap()) && month().ok() ? 2457 __d[static_cast<unsigned>(month()) - 1] : chrono::day{29}; 2458} 2459 2460inline constexpr 2461bool operator==(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2462{ return __lhs.year() == __rhs.year() && __lhs.month_day_last() == __rhs.month_day_last(); } 2463 2464inline constexpr 2465bool operator!=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2466{ return !(__lhs == __rhs); } 2467 2468inline constexpr 2469bool operator< (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2470{ 2471 if (__lhs.year() < __rhs.year()) return true; 2472 if (__lhs.year() > __rhs.year()) return false; 2473 return __lhs.month_day_last() < __rhs.month_day_last(); 2474} 2475 2476inline constexpr 2477bool operator> (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2478{ return __rhs < __lhs; } 2479 2480inline constexpr 2481bool operator<=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2482{ return !(__rhs < __lhs);} 2483 2484inline constexpr 2485bool operator>=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2486{ return !(__lhs < __rhs); } 2487 2488inline constexpr year_month_day_last operator/(const year_month& __lhs, last_spec) noexcept 2489{ return year_month_day_last{__lhs.year(), month_day_last{__lhs.month()}}; } 2490 2491inline constexpr year_month_day_last operator/(const year& __lhs, const month_day_last& __rhs) noexcept 2492{ return year_month_day_last{__lhs, __rhs}; } 2493 2494inline constexpr year_month_day_last operator/(int __lhs, const month_day_last& __rhs) noexcept 2495{ return year_month_day_last{year{__lhs}, __rhs}; } 2496 2497inline constexpr year_month_day_last operator/(const month_day_last& __lhs, const year& __rhs) noexcept 2498{ return __rhs / __lhs; } 2499 2500inline constexpr year_month_day_last operator/(const month_day_last& __lhs, int __rhs) noexcept 2501{ return year{__rhs} / __lhs; } 2502 2503 2504inline constexpr 2505year_month_day_last operator+(const year_month_day_last& __lhs, const months& __rhs) noexcept 2506{ return (__lhs.year() / __lhs.month() + __rhs) / last; } 2507 2508inline constexpr 2509year_month_day_last operator+(const months& __lhs, const year_month_day_last& __rhs) noexcept 2510{ return __rhs + __lhs; } 2511 2512inline constexpr 2513year_month_day_last operator-(const year_month_day_last& __lhs, const months& __rhs) noexcept 2514{ return __lhs + (-__rhs); } 2515 2516inline constexpr 2517year_month_day_last operator+(const year_month_day_last& __lhs, const years& __rhs) noexcept 2518{ return year_month_day_last{__lhs.year() + __rhs, __lhs.month_day_last()}; } 2519 2520inline constexpr 2521year_month_day_last operator+(const years& __lhs, const year_month_day_last& __rhs) noexcept 2522{ return __rhs + __lhs; } 2523 2524inline constexpr 2525year_month_day_last operator-(const year_month_day_last& __lhs, const years& __rhs) noexcept 2526{ return __lhs + (-__rhs); } 2527 2528inline constexpr year_month_day_last& year_month_day_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } 2529inline constexpr year_month_day_last& year_month_day_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } 2530inline constexpr year_month_day_last& year_month_day_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2531inline constexpr year_month_day_last& year_month_day_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2532 2533inline constexpr year_month_day::year_month_day(const year_month_day_last& __ymdl) noexcept 2534 : __y{__ymdl.year()}, __m{__ymdl.month()}, __d{__ymdl.day()} {} 2535 2536inline constexpr bool year_month_day::ok() const noexcept 2537{ 2538 if (!__y.ok() || !__m.ok()) return false; 2539 return chrono::day{1} <= __d && __d <= (__y / __m / last).day(); 2540} 2541 2542class year_month_weekday { 2543 chrono::year __y; 2544 chrono::month __m; 2545 chrono::weekday_indexed __wdi; 2546public: 2547 year_month_weekday() = default; 2548 constexpr year_month_weekday(const chrono::year& __yval, const chrono::month& __mval, 2549 const chrono::weekday_indexed& __wdival) noexcept 2550 : __y{__yval}, __m{__mval}, __wdi{__wdival} {} 2551 constexpr year_month_weekday(const sys_days& __sysd) noexcept 2552 : year_month_weekday(__from_days(__sysd.time_since_epoch())) {} 2553 inline explicit constexpr year_month_weekday(const local_days& __locd) noexcept 2554 : year_month_weekday(__from_days(__locd.time_since_epoch())) {} 2555 constexpr year_month_weekday& operator+=(const months& m) noexcept; 2556 constexpr year_month_weekday& operator-=(const months& m) noexcept; 2557 constexpr year_month_weekday& operator+=(const years& y) noexcept; 2558 constexpr year_month_weekday& operator-=(const years& y) noexcept; 2559 2560 inline constexpr chrono::year year() const noexcept { return __y; } 2561 inline constexpr chrono::month month() const noexcept { return __m; } 2562 inline constexpr chrono::weekday weekday() const noexcept { return __wdi.weekday(); } 2563 inline constexpr unsigned index() const noexcept { return __wdi.index(); } 2564 inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; } 2565 2566 inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } 2567 inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } 2568 inline constexpr bool ok() const noexcept 2569 { 2570 if (!__y.ok() || !__m.ok() || !__wdi.ok()) return false; 2571 if (__wdi.index() <= 4) return true; 2572 auto __nth_weekday_day = 2573 __wdi.weekday() - 2574 chrono::weekday{static_cast<sys_days>(__y / __m / 1)} + 2575 days{(__wdi.index() - 1) * 7 + 1}; 2576 return static_cast<unsigned>(__nth_weekday_day.count()) <= 2577 static_cast<unsigned>((__y / __m / last).day()); 2578 } 2579 2580 static constexpr year_month_weekday __from_days(days __d) noexcept; 2581 constexpr days __to_days() const noexcept; 2582}; 2583 2584inline constexpr 2585year_month_weekday year_month_weekday::__from_days(days __d) noexcept 2586{ 2587 const sys_days __sysd{__d}; 2588 const chrono::weekday __wd = chrono::weekday(__sysd); 2589 const year_month_day __ymd = year_month_day(__sysd); 2590 return year_month_weekday{__ymd.year(), __ymd.month(), 2591 __wd[(static_cast<unsigned>(__ymd.day())-1)/7+1]}; 2592} 2593 2594inline constexpr 2595days year_month_weekday::__to_days() const noexcept 2596{ 2597 const sys_days __sysd = sys_days(__y/__m/1); 2598 return (__sysd + (__wdi.weekday() - chrono::weekday(__sysd) + days{(__wdi.index()-1)*7})) 2599 .time_since_epoch(); 2600} 2601 2602inline constexpr 2603bool operator==(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept 2604{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); } 2605 2606inline constexpr 2607bool operator!=(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept 2608{ return !(__lhs == __rhs); } 2609 2610inline constexpr 2611year_month_weekday operator/(const year_month& __lhs, const weekday_indexed& __rhs) noexcept 2612{ return year_month_weekday{__lhs.year(), __lhs.month(), __rhs}; } 2613 2614inline constexpr 2615year_month_weekday operator/(const year& __lhs, const month_weekday& __rhs) noexcept 2616{ return year_month_weekday{__lhs, __rhs.month(), __rhs.weekday_indexed()}; } 2617 2618inline constexpr 2619year_month_weekday operator/(int __lhs, const month_weekday& __rhs) noexcept 2620{ return year(__lhs) / __rhs; } 2621 2622inline constexpr 2623year_month_weekday operator/(const month_weekday& __lhs, const year& __rhs) noexcept 2624{ return __rhs / __lhs; } 2625 2626inline constexpr 2627year_month_weekday operator/(const month_weekday& __lhs, int __rhs) noexcept 2628{ return year(__rhs) / __lhs; } 2629 2630 2631inline constexpr 2632year_month_weekday operator+(const year_month_weekday& __lhs, const months& __rhs) noexcept 2633{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_indexed(); } 2634 2635inline constexpr 2636year_month_weekday operator+(const months& __lhs, const year_month_weekday& __rhs) noexcept 2637{ return __rhs + __lhs; } 2638 2639inline constexpr 2640year_month_weekday operator-(const year_month_weekday& __lhs, const months& __rhs) noexcept 2641{ return __lhs + (-__rhs); } 2642 2643inline constexpr 2644year_month_weekday operator+(const year_month_weekday& __lhs, const years& __rhs) noexcept 2645{ return year_month_weekday{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_indexed()}; } 2646 2647inline constexpr 2648year_month_weekday operator+(const years& __lhs, const year_month_weekday& __rhs) noexcept 2649{ return __rhs + __lhs; } 2650 2651inline constexpr 2652year_month_weekday operator-(const year_month_weekday& __lhs, const years& __rhs) noexcept 2653{ return __lhs + (-__rhs); } 2654 2655 2656inline constexpr year_month_weekday& year_month_weekday::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } 2657inline constexpr year_month_weekday& year_month_weekday::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } 2658inline constexpr year_month_weekday& year_month_weekday::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2659inline constexpr year_month_weekday& year_month_weekday::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2660 2661class year_month_weekday_last { 2662private: 2663 chrono::year __y; 2664 chrono::month __m; 2665 chrono::weekday_last __wdl; 2666public: 2667 constexpr year_month_weekday_last(const chrono::year& __yval, const chrono::month& __mval, 2668 const chrono::weekday_last& __wdlval) noexcept 2669 : __y{__yval}, __m{__mval}, __wdl{__wdlval} {} 2670 constexpr year_month_weekday_last& operator+=(const months& __dm) noexcept; 2671 constexpr year_month_weekday_last& operator-=(const months& __dm) noexcept; 2672 constexpr year_month_weekday_last& operator+=(const years& __dy) noexcept; 2673 constexpr year_month_weekday_last& operator-=(const years& __dy) noexcept; 2674 2675 inline constexpr chrono::year year() const noexcept { return __y; } 2676 inline constexpr chrono::month month() const noexcept { return __m; } 2677 inline constexpr chrono::weekday weekday() const noexcept { return __wdl.weekday(); } 2678 inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; } 2679 inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } 2680 inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } 2681 inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok() && __wdl.ok(); } 2682 2683 constexpr days __to_days() const noexcept; 2684 2685}; 2686 2687inline constexpr 2688days year_month_weekday_last::__to_days() const noexcept 2689{ 2690 const sys_days __last = sys_days{__y/__m/last}; 2691 return (__last - (chrono::weekday{__last} - __wdl.weekday())).time_since_epoch(); 2692 2693} 2694 2695inline constexpr 2696bool operator==(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept 2697{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); } 2698 2699inline constexpr 2700bool operator!=(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept 2701{ return !(__lhs == __rhs); } 2702 2703 2704inline constexpr 2705year_month_weekday_last operator/(const year_month& __lhs, const weekday_last& __rhs) noexcept 2706{ return year_month_weekday_last{__lhs.year(), __lhs.month(), __rhs}; } 2707 2708inline constexpr 2709year_month_weekday_last operator/(const year& __lhs, const month_weekday_last& __rhs) noexcept 2710{ return year_month_weekday_last{__lhs, __rhs.month(), __rhs.weekday_last()}; } 2711 2712inline constexpr 2713year_month_weekday_last operator/(int __lhs, const month_weekday_last& __rhs) noexcept 2714{ return year(__lhs) / __rhs; } 2715 2716inline constexpr 2717year_month_weekday_last operator/(const month_weekday_last& __lhs, const year& __rhs) noexcept 2718{ return __rhs / __lhs; } 2719 2720inline constexpr 2721year_month_weekday_last operator/(const month_weekday_last& __lhs, int __rhs) noexcept 2722{ return year(__rhs) / __lhs; } 2723 2724 2725inline constexpr 2726year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const months& __rhs) noexcept 2727{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_last(); } 2728 2729inline constexpr 2730year_month_weekday_last operator+(const months& __lhs, const year_month_weekday_last& __rhs) noexcept 2731{ return __rhs + __lhs; } 2732 2733inline constexpr 2734year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const months& __rhs) noexcept 2735{ return __lhs + (-__rhs); } 2736 2737inline constexpr 2738year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const years& __rhs) noexcept 2739{ return year_month_weekday_last{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_last()}; } 2740 2741inline constexpr 2742year_month_weekday_last operator+(const years& __lhs, const year_month_weekday_last& __rhs) noexcept 2743{ return __rhs + __lhs; } 2744 2745inline constexpr 2746year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const years& __rhs) noexcept 2747{ return __lhs + (-__rhs); } 2748 2749inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; } 2750inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; } 2751inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2752inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2753 2754 2755template <class _Duration> 2756class hh_mm_ss 2757{ 2758private: 2759 static_assert(__is_duration<_Duration>::value, "template parameter of hh_mm_ss must be a std::chrono::duration"); 2760 using __CommonType = common_type_t<_Duration, chrono::seconds>; 2761 2762 static constexpr uint64_t __pow10(unsigned __exp) 2763 { 2764 uint64_t __ret = 1; 2765 for (unsigned __i = 0; __i < __exp; ++__i) 2766 __ret *= 10U; 2767 return __ret; 2768 } 2769 2770 static constexpr unsigned __width(uint64_t __n, uint64_t __d = 10, unsigned __w = 0) 2771 { 2772 if (__n >= 2 && __d != 0 && __w < 19) 2773 return 1 + __width(__n, __d % __n * 10, __w+1); 2774 return 0; 2775 } 2776 2777public: 2778 static unsigned constexpr fractional_width = __width(__CommonType::period::den) < 19 ? 2779 __width(__CommonType::period::den) : 6u; 2780 using precision = duration<typename __CommonType::rep, ratio<1, __pow10(fractional_width)>>; 2781 2782 constexpr hh_mm_ss() noexcept : hh_mm_ss{_Duration::zero()} {} 2783 2784 constexpr explicit hh_mm_ss(_Duration __d) noexcept : 2785 __is_neg(__d < _Duration(0)), 2786 __h(duration_cast<chrono::hours> (abs(__d))), 2787 __m(duration_cast<chrono::minutes>(abs(__d) - hours())), 2788 __s(duration_cast<chrono::seconds>(abs(__d) - hours() - minutes())), 2789 __f(duration_cast<precision> (abs(__d) - hours() - minutes() - seconds())) 2790 {} 2791 2792 constexpr bool is_negative() const noexcept { return __is_neg; } 2793 constexpr chrono::hours hours() const noexcept { return __h; } 2794 constexpr chrono::minutes minutes() const noexcept { return __m; } 2795 constexpr chrono::seconds seconds() const noexcept { return __s; } 2796 constexpr precision subseconds() const noexcept { return __f; } 2797 2798 constexpr precision to_duration() const noexcept 2799 { 2800 auto __dur = __h + __m + __s + __f; 2801 return __is_neg ? -__dur : __dur; 2802 } 2803 2804 constexpr explicit operator precision() const noexcept { return to_duration(); } 2805 2806private: 2807 bool __is_neg; 2808 chrono::hours __h; 2809 chrono::minutes __m; 2810 chrono::seconds __s; 2811 precision __f; 2812}; 2813 2814constexpr bool is_am(const hours& __h) noexcept { return __h >= hours( 0) && __h < hours(12); } 2815constexpr bool is_pm(const hours& __h) noexcept { return __h >= hours(12) && __h < hours(24); } 2816 2817constexpr hours make12(const hours& __h) noexcept 2818{ 2819 if (__h == hours( 0)) return hours(12); 2820 else if (__h <= hours(12)) return __h; 2821 else return __h - hours(12); 2822} 2823 2824constexpr hours make24(const hours& __h, bool __is_pm) noexcept 2825{ 2826 if (__is_pm) 2827 return __h == hours(12) ? __h : __h + hours(12); 2828 else 2829 return __h == hours(12) ? hours(0) : __h; 2830} 2831 2832#endif // _LIBCPP_STD_VER > 17 2833} // chrono 2834 2835#if _LIBCPP_STD_VER > 11 2836// Suffixes for duration literals [time.duration.literals] 2837inline namespace literals 2838{ 2839 inline namespace chrono_literals 2840 { 2841 2842 constexpr chrono::hours operator""h(unsigned long long __h) 2843 { 2844 return chrono::hours(static_cast<chrono::hours::rep>(__h)); 2845 } 2846 2847 constexpr chrono::duration<long double, ratio<3600,1>> operator""h(long double __h) 2848 { 2849 return chrono::duration<long double, ratio<3600,1>>(__h); 2850 } 2851 2852 2853 constexpr chrono::minutes operator""min(unsigned long long __m) 2854 { 2855 return chrono::minutes(static_cast<chrono::minutes::rep>(__m)); 2856 } 2857 2858 constexpr chrono::duration<long double, ratio<60,1>> operator""min(long double __m) 2859 { 2860 return chrono::duration<long double, ratio<60,1>> (__m); 2861 } 2862 2863 2864 constexpr chrono::seconds operator""s(unsigned long long __s) 2865 { 2866 return chrono::seconds(static_cast<chrono::seconds::rep>(__s)); 2867 } 2868 2869 constexpr chrono::duration<long double> operator""s(long double __s) 2870 { 2871 return chrono::duration<long double> (__s); 2872 } 2873 2874 2875 constexpr chrono::milliseconds operator""ms(unsigned long long __ms) 2876 { 2877 return chrono::milliseconds(static_cast<chrono::milliseconds::rep>(__ms)); 2878 } 2879 2880 constexpr chrono::duration<long double, milli> operator""ms(long double __ms) 2881 { 2882 return chrono::duration<long double, milli>(__ms); 2883 } 2884 2885 2886 constexpr chrono::microseconds operator""us(unsigned long long __us) 2887 { 2888 return chrono::microseconds(static_cast<chrono::microseconds::rep>(__us)); 2889 } 2890 2891 constexpr chrono::duration<long double, micro> operator""us(long double __us) 2892 { 2893 return chrono::duration<long double, micro> (__us); 2894 } 2895 2896 2897 constexpr chrono::nanoseconds operator""ns(unsigned long long __ns) 2898 { 2899 return chrono::nanoseconds(static_cast<chrono::nanoseconds::rep>(__ns)); 2900 } 2901 2902 constexpr chrono::duration<long double, nano> operator""ns(long double __ns) 2903 { 2904 return chrono::duration<long double, nano> (__ns); 2905 } 2906 2907#if _LIBCPP_STD_VER > 17 2908 constexpr chrono::day operator ""d(unsigned long long __d) noexcept 2909 { 2910 return chrono::day(static_cast<unsigned>(__d)); 2911 } 2912 2913 constexpr chrono::year operator ""y(unsigned long long __y) noexcept 2914 { 2915 return chrono::year(static_cast<int>(__y)); 2916 } 2917#endif 2918}} 2919 2920namespace chrono { // hoist the literals into namespace std::chrono 2921 using namespace literals::chrono_literals; 2922} 2923 2924#endif 2925 2926_LIBCPP_END_NAMESPACE_STD 2927 2928#ifndef _LIBCPP_CXX03_LANG 2929_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM 2930struct _FilesystemClock { 2931#if !defined(_LIBCPP_HAS_NO_INT128) 2932 typedef __int128_t rep; 2933 typedef nano period; 2934#else 2935 typedef long long rep; 2936 typedef nano period; 2937#endif 2938 2939 typedef chrono::duration<rep, period> duration; 2940 typedef chrono::time_point<_FilesystemClock> time_point; 2941 2942 _LIBCPP_EXPORTED_FROM_ABI 2943 static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false; 2944 2945 _LIBCPP_AVAILABILITY_FILESYSTEM _LIBCPP_FUNC_VIS static time_point now() noexcept; 2946 2947 _LIBCPP_INLINE_VISIBILITY 2948 static time_t to_time_t(const time_point& __t) noexcept { 2949 typedef chrono::duration<rep> __secs; 2950 return time_t( 2951 chrono::duration_cast<__secs>(__t.time_since_epoch()).count()); 2952 } 2953 2954 _LIBCPP_INLINE_VISIBILITY 2955 static time_point from_time_t(time_t __t) noexcept { 2956 typedef chrono::duration<rep> __secs; 2957 return time_point(__secs(__t)); 2958 } 2959}; 2960_LIBCPP_END_NAMESPACE_FILESYSTEM 2961#endif // !_LIBCPP_CXX03_LANG 2962 2963_LIBCPP_POP_MACROS 2964 2965#endif // _LIBCPP_CHRONO 2966