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 <__config> 827#include <ctime> 828#include <type_traits> 829#include <ratio> 830#include <limits> 831#include <version> 832 833#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 834#pragma GCC system_header 835#endif 836 837_LIBCPP_PUSH_MACROS 838#include <__undef_macros> 839 840#ifndef _LIBCPP_CXX03_LANG 841_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM 842struct _FilesystemClock; 843_LIBCPP_END_NAMESPACE_FILESYSTEM 844#endif // !_LIBCPP_CXX03_LANG 845 846_LIBCPP_BEGIN_NAMESPACE_STD 847 848namespace chrono 849{ 850 851template <class _Rep, class _Period = ratio<1> > class _LIBCPP_TEMPLATE_VIS duration; 852 853template <class _Tp> 854struct __is_duration : false_type {}; 855 856template <class _Rep, class _Period> 857struct __is_duration<duration<_Rep, _Period> > : true_type {}; 858 859template <class _Rep, class _Period> 860struct __is_duration<const duration<_Rep, _Period> > : true_type {}; 861 862template <class _Rep, class _Period> 863struct __is_duration<volatile duration<_Rep, _Period> > : true_type {}; 864 865template <class _Rep, class _Period> 866struct __is_duration<const volatile duration<_Rep, _Period> > : true_type {}; 867 868} // chrono 869 870template <class _Rep1, class _Period1, class _Rep2, class _Period2> 871struct _LIBCPP_TEMPLATE_VIS common_type<chrono::duration<_Rep1, _Period1>, 872 chrono::duration<_Rep2, _Period2> > 873{ 874 typedef chrono::duration<typename common_type<_Rep1, _Rep2>::type, 875 typename __ratio_gcd<_Period1, _Period2>::type> type; 876}; 877 878namespace chrono { 879 880// duration_cast 881 882template <class _FromDuration, class _ToDuration, 883 class _Period = typename ratio_divide<typename _FromDuration::period, typename _ToDuration::period>::type, 884 bool = _Period::num == 1, 885 bool = _Period::den == 1> 886struct __duration_cast; 887 888template <class _FromDuration, class _ToDuration, class _Period> 889struct __duration_cast<_FromDuration, _ToDuration, _Period, true, true> 890{ 891 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 892 _ToDuration operator()(const _FromDuration& __fd) const 893 { 894 return _ToDuration(static_cast<typename _ToDuration::rep>(__fd.count())); 895 } 896}; 897 898template <class _FromDuration, class _ToDuration, class _Period> 899struct __duration_cast<_FromDuration, _ToDuration, _Period, true, false> 900{ 901 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 902 _ToDuration operator()(const _FromDuration& __fd) const 903 { 904 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; 905 return _ToDuration(static_cast<typename _ToDuration::rep>( 906 static_cast<_Ct>(__fd.count()) / static_cast<_Ct>(_Period::den))); 907 } 908}; 909 910template <class _FromDuration, class _ToDuration, class _Period> 911struct __duration_cast<_FromDuration, _ToDuration, _Period, false, true> 912{ 913 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 914 _ToDuration operator()(const _FromDuration& __fd) const 915 { 916 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; 917 return _ToDuration(static_cast<typename _ToDuration::rep>( 918 static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num))); 919 } 920}; 921 922template <class _FromDuration, class _ToDuration, class _Period> 923struct __duration_cast<_FromDuration, _ToDuration, _Period, false, false> 924{ 925 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 926 _ToDuration operator()(const _FromDuration& __fd) const 927 { 928 typedef typename common_type<typename _ToDuration::rep, typename _FromDuration::rep, intmax_t>::type _Ct; 929 return _ToDuration(static_cast<typename _ToDuration::rep>( 930 static_cast<_Ct>(__fd.count()) * static_cast<_Ct>(_Period::num) 931 / static_cast<_Ct>(_Period::den))); 932 } 933}; 934 935template <class _ToDuration, class _Rep, class _Period> 936inline _LIBCPP_INLINE_VISIBILITY 937_LIBCPP_CONSTEXPR 938typename enable_if 939< 940 __is_duration<_ToDuration>::value, 941 _ToDuration 942>::type 943duration_cast(const duration<_Rep, _Period>& __fd) 944{ 945 return __duration_cast<duration<_Rep, _Period>, _ToDuration>()(__fd); 946} 947 948template <class _Rep> 949struct _LIBCPP_TEMPLATE_VIS treat_as_floating_point : is_floating_point<_Rep> {}; 950 951#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES) 952template <class _Rep> 953_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool treat_as_floating_point_v 954 = treat_as_floating_point<_Rep>::value; 955#endif 956 957template <class _Rep> 958struct _LIBCPP_TEMPLATE_VIS duration_values 959{ 960public: 961 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep zero() _NOEXCEPT {return _Rep(0);} 962 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep max() _NOEXCEPT {return numeric_limits<_Rep>::max();} 963 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR _Rep min() _NOEXCEPT {return numeric_limits<_Rep>::lowest();} 964}; 965 966#if _LIBCPP_STD_VER > 14 967template <class _ToDuration, class _Rep, class _Period> 968inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 969typename enable_if 970< 971 __is_duration<_ToDuration>::value, 972 _ToDuration 973>::type 974floor(const duration<_Rep, _Period>& __d) 975{ 976 _ToDuration __t = duration_cast<_ToDuration>(__d); 977 if (__t > __d) 978 __t = __t - _ToDuration{1}; 979 return __t; 980} 981 982template <class _ToDuration, class _Rep, class _Period> 983inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 984typename enable_if 985< 986 __is_duration<_ToDuration>::value, 987 _ToDuration 988>::type 989ceil(const duration<_Rep, _Period>& __d) 990{ 991 _ToDuration __t = duration_cast<_ToDuration>(__d); 992 if (__t < __d) 993 __t = __t + _ToDuration{1}; 994 return __t; 995} 996 997template <class _ToDuration, class _Rep, class _Period> 998inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 999typename enable_if 1000< 1001 __is_duration<_ToDuration>::value, 1002 _ToDuration 1003>::type 1004round(const duration<_Rep, _Period>& __d) 1005{ 1006 _ToDuration __lower = floor<_ToDuration>(__d); 1007 _ToDuration __upper = __lower + _ToDuration{1}; 1008 auto __lowerDiff = __d - __lower; 1009 auto __upperDiff = __upper - __d; 1010 if (__lowerDiff < __upperDiff) 1011 return __lower; 1012 if (__lowerDiff > __upperDiff) 1013 return __upper; 1014 return __lower.count() & 1 ? __upper : __lower; 1015} 1016#endif 1017 1018// duration 1019 1020template <class _Rep, class _Period> 1021class _LIBCPP_TEMPLATE_VIS duration 1022{ 1023 static_assert(!__is_duration<_Rep>::value, "A duration representation can not be a duration"); 1024 static_assert(__is_ratio<_Period>::value, "Second template parameter of duration must be a std::ratio"); 1025 static_assert(_Period::num > 0, "duration period must be positive"); 1026 1027 template <class _R1, class _R2> 1028 struct __no_overflow 1029 { 1030 private: 1031 static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>::value; 1032 static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>::value; 1033 static const intmax_t __n1 = _R1::num / __gcd_n1_n2; 1034 static const intmax_t __d1 = _R1::den / __gcd_d1_d2; 1035 static const intmax_t __n2 = _R2::num / __gcd_n1_n2; 1036 static const intmax_t __d2 = _R2::den / __gcd_d1_d2; 1037 static const intmax_t max = -((intmax_t(1) << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1); 1038 1039 template <intmax_t _Xp, intmax_t _Yp, bool __overflow> 1040 struct __mul // __overflow == false 1041 { 1042 static const intmax_t value = _Xp * _Yp; 1043 }; 1044 1045 template <intmax_t _Xp, intmax_t _Yp> 1046 struct __mul<_Xp, _Yp, true> 1047 { 1048 static const intmax_t value = 1; 1049 }; 1050 1051 public: 1052 static const bool value = (__n1 <= max / __d2) && (__n2 <= max / __d1); 1053 typedef ratio<__mul<__n1, __d2, !value>::value, 1054 __mul<__n2, __d1, !value>::value> type; 1055 }; 1056 1057public: 1058 typedef _Rep rep; 1059 typedef typename _Period::type period; 1060private: 1061 rep __rep_; 1062public: 1063 1064 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1065#ifndef _LIBCPP_CXX03_LANG 1066 duration() = default; 1067#else 1068 duration() {} 1069#endif 1070 1071 template <class _Rep2> 1072 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1073 explicit duration(const _Rep2& __r, 1074 typename enable_if 1075 < 1076 is_convertible<_Rep2, rep>::value && 1077 (treat_as_floating_point<rep>::value || 1078 !treat_as_floating_point<_Rep2>::value) 1079 >::type* = 0) 1080 : __rep_(__r) {} 1081 1082 // conversions 1083 template <class _Rep2, class _Period2> 1084 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1085 duration(const duration<_Rep2, _Period2>& __d, 1086 typename enable_if 1087 < 1088 __no_overflow<_Period2, period>::value && ( 1089 treat_as_floating_point<rep>::value || 1090 (__no_overflow<_Period2, period>::type::den == 1 && 1091 !treat_as_floating_point<_Rep2>::value)) 1092 >::type* = 0) 1093 : __rep_(_VSTD::chrono::duration_cast<duration>(__d).count()) {} 1094 1095 // observer 1096 1097 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR rep count() const {return __rep_;} 1098 1099 // arithmetic 1100 1101 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR typename common_type<duration>::type operator+() const {return typename common_type<duration>::type(*this);} 1102 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR typename common_type<duration>::type operator-() const {return typename common_type<duration>::type(-__rep_);} 1103 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator++() {++__rep_; return *this;} 1104 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration operator++(int) {return duration(__rep_++);} 1105 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator--() {--__rep_; return *this;} 1106 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration operator--(int) {return duration(__rep_--);} 1107 1108 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator+=(const duration& __d) {__rep_ += __d.count(); return *this;} 1109 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator-=(const duration& __d) {__rep_ -= __d.count(); return *this;} 1110 1111 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 duration& operator*=(const rep& rhs) {__rep_ *= rhs; return *this;} 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 duration& rhs) {__rep_ %= rhs.count(); return *this;} 1115 1116 // special values 1117 1118 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration zero() _NOEXCEPT {return duration(duration_values<rep>::zero());} 1119 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration min() _NOEXCEPT {return duration(duration_values<rep>::min());} 1120 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR duration max() _NOEXCEPT {return duration(duration_values<rep>::max());} 1121}; 1122 1123typedef duration<long long, nano> nanoseconds; 1124typedef duration<long long, micro> microseconds; 1125typedef duration<long long, milli> milliseconds; 1126typedef duration<long long > seconds; 1127typedef duration< long, ratio< 60> > minutes; 1128typedef duration< long, ratio<3600> > hours; 1129#if _LIBCPP_STD_VER > 17 1130typedef duration< int, ratio_multiply<ratio<24>, hours::period>> days; 1131typedef duration< int, ratio_multiply<ratio<7>, days::period>> weeks; 1132typedef duration< int, ratio_multiply<ratio<146097, 400>, days::period>> years; 1133typedef duration< int, ratio_divide<years::period, ratio<12>>> months; 1134#endif 1135// Duration == 1136 1137template <class _LhsDuration, class _RhsDuration> 1138struct __duration_eq 1139{ 1140 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1141 bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const 1142 { 1143 typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct; 1144 return _Ct(__lhs).count() == _Ct(__rhs).count(); 1145 } 1146}; 1147 1148template <class _LhsDuration> 1149struct __duration_eq<_LhsDuration, _LhsDuration> 1150{ 1151 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1152 bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const 1153 {return __lhs.count() == __rhs.count();} 1154}; 1155 1156template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1157inline _LIBCPP_INLINE_VISIBILITY 1158_LIBCPP_CONSTEXPR 1159bool 1160operator==(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1161{ 1162 return __duration_eq<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs); 1163} 1164 1165// Duration != 1166 1167template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1168inline _LIBCPP_INLINE_VISIBILITY 1169_LIBCPP_CONSTEXPR 1170bool 1171operator!=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1172{ 1173 return !(__lhs == __rhs); 1174} 1175 1176// Duration < 1177 1178template <class _LhsDuration, class _RhsDuration> 1179struct __duration_lt 1180{ 1181 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1182 bool operator()(const _LhsDuration& __lhs, const _RhsDuration& __rhs) const 1183 { 1184 typedef typename common_type<_LhsDuration, _RhsDuration>::type _Ct; 1185 return _Ct(__lhs).count() < _Ct(__rhs).count(); 1186 } 1187}; 1188 1189template <class _LhsDuration> 1190struct __duration_lt<_LhsDuration, _LhsDuration> 1191{ 1192 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1193 bool operator()(const _LhsDuration& __lhs, const _LhsDuration& __rhs) const 1194 {return __lhs.count() < __rhs.count();} 1195}; 1196 1197template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1198inline _LIBCPP_INLINE_VISIBILITY 1199_LIBCPP_CONSTEXPR 1200bool 1201operator< (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1202{ 1203 return __duration_lt<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >()(__lhs, __rhs); 1204} 1205 1206// Duration > 1207 1208template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1209inline _LIBCPP_INLINE_VISIBILITY 1210_LIBCPP_CONSTEXPR 1211bool 1212operator> (const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1213{ 1214 return __rhs < __lhs; 1215} 1216 1217// Duration <= 1218 1219template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1220inline _LIBCPP_INLINE_VISIBILITY 1221_LIBCPP_CONSTEXPR 1222bool 1223operator<=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1224{ 1225 return !(__rhs < __lhs); 1226} 1227 1228// Duration >= 1229 1230template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1231inline _LIBCPP_INLINE_VISIBILITY 1232_LIBCPP_CONSTEXPR 1233bool 1234operator>=(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1235{ 1236 return !(__lhs < __rhs); 1237} 1238 1239// Duration + 1240 1241template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1242inline _LIBCPP_INLINE_VISIBILITY 1243_LIBCPP_CONSTEXPR 1244typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type 1245operator+(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1246{ 1247 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; 1248 return _Cd(_Cd(__lhs).count() + _Cd(__rhs).count()); 1249} 1250 1251// Duration - 1252 1253template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1254inline _LIBCPP_INLINE_VISIBILITY 1255_LIBCPP_CONSTEXPR 1256typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type 1257operator-(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1258{ 1259 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; 1260 return _Cd(_Cd(__lhs).count() - _Cd(__rhs).count()); 1261} 1262 1263// Duration * 1264 1265template <class _Rep1, class _Period, class _Rep2> 1266inline _LIBCPP_INLINE_VISIBILITY 1267_LIBCPP_CONSTEXPR 1268typename enable_if 1269< 1270 is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value, 1271 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1272>::type 1273operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s) 1274{ 1275 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1276 typedef duration<_Cr, _Period> _Cd; 1277 return _Cd(_Cd(__d).count() * static_cast<_Cr>(__s)); 1278} 1279 1280template <class _Rep1, class _Period, class _Rep2> 1281inline _LIBCPP_INLINE_VISIBILITY 1282_LIBCPP_CONSTEXPR 1283typename enable_if 1284< 1285 is_convertible<_Rep1, typename common_type<_Rep1, _Rep2>::type>::value, 1286 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1287>::type 1288operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d) 1289{ 1290 return __d * __s; 1291} 1292 1293// Duration / 1294 1295template <class _Rep1, class _Period, class _Rep2> 1296inline _LIBCPP_INLINE_VISIBILITY 1297_LIBCPP_CONSTEXPR 1298typename enable_if 1299< 1300 !__is_duration<_Rep2>::value && 1301 is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value, 1302 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1303>::type 1304operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s) 1305{ 1306 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1307 typedef duration<_Cr, _Period> _Cd; 1308 return _Cd(_Cd(__d).count() / static_cast<_Cr>(__s)); 1309} 1310 1311template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1312inline _LIBCPP_INLINE_VISIBILITY 1313_LIBCPP_CONSTEXPR 1314typename common_type<_Rep1, _Rep2>::type 1315operator/(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1316{ 1317 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Ct; 1318 return _Ct(__lhs).count() / _Ct(__rhs).count(); 1319} 1320 1321// Duration % 1322 1323template <class _Rep1, class _Period, class _Rep2> 1324inline _LIBCPP_INLINE_VISIBILITY 1325_LIBCPP_CONSTEXPR 1326typename enable_if 1327< 1328 !__is_duration<_Rep2>::value && 1329 is_convertible<_Rep2, typename common_type<_Rep1, _Rep2>::type>::value, 1330 duration<typename common_type<_Rep1, _Rep2>::type, _Period> 1331>::type 1332operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s) 1333{ 1334 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1335 typedef duration<_Cr, _Period> _Cd; 1336 return _Cd(_Cd(__d).count() % static_cast<_Cr>(__s)); 1337} 1338 1339template <class _Rep1, class _Period1, class _Rep2, class _Period2> 1340inline _LIBCPP_INLINE_VISIBILITY 1341_LIBCPP_CONSTEXPR 1342typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type 1343operator%(const duration<_Rep1, _Period1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1344{ 1345 typedef typename common_type<_Rep1, _Rep2>::type _Cr; 1346 typedef typename common_type<duration<_Rep1, _Period1>, duration<_Rep2, _Period2> >::type _Cd; 1347 return _Cd(static_cast<_Cr>(_Cd(__lhs).count()) % static_cast<_Cr>(_Cd(__rhs).count())); 1348} 1349 1350////////////////////////////////////////////////////////// 1351///////////////////// time_point ///////////////////////// 1352////////////////////////////////////////////////////////// 1353 1354template <class _Clock, class _Duration = typename _Clock::duration> 1355class _LIBCPP_TEMPLATE_VIS time_point 1356{ 1357 static_assert(__is_duration<_Duration>::value, 1358 "Second template parameter of time_point must be a std::chrono::duration"); 1359public: 1360 typedef _Clock clock; 1361 typedef _Duration duration; 1362 typedef typename duration::rep rep; 1363 typedef typename duration::period period; 1364private: 1365 duration __d_; 1366 1367public: 1368 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 time_point() : __d_(duration::zero()) {} 1369 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 explicit time_point(const duration& __d) : __d_(__d) {} 1370 1371 // conversions 1372 template <class _Duration2> 1373 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1374 time_point(const time_point<clock, _Duration2>& t, 1375 typename enable_if 1376 < 1377 is_convertible<_Duration2, duration>::value 1378 >::type* = 0) 1379 : __d_(t.time_since_epoch()) {} 1380 1381 // observer 1382 1383 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 duration time_since_epoch() const {return __d_;} 1384 1385 // arithmetic 1386 1387 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 time_point& operator+=(const duration& __d) {__d_ += __d; return *this;} 1388 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 time_point& operator-=(const duration& __d) {__d_ -= __d; return *this;} 1389 1390 // special values 1391 1392 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point min() _NOEXCEPT {return time_point(duration::min());} 1393 _LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR time_point max() _NOEXCEPT {return time_point(duration::max());} 1394}; 1395 1396} // chrono 1397 1398template <class _Clock, class _Duration1, class _Duration2> 1399struct _LIBCPP_TEMPLATE_VIS common_type<chrono::time_point<_Clock, _Duration1>, 1400 chrono::time_point<_Clock, _Duration2> > 1401{ 1402 typedef chrono::time_point<_Clock, typename common_type<_Duration1, _Duration2>::type> type; 1403}; 1404 1405namespace chrono { 1406 1407template <class _ToDuration, class _Clock, class _Duration> 1408inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1409time_point<_Clock, _ToDuration> 1410time_point_cast(const time_point<_Clock, _Duration>& __t) 1411{ 1412 return time_point<_Clock, _ToDuration>(_VSTD::chrono::duration_cast<_ToDuration>(__t.time_since_epoch())); 1413} 1414 1415#if _LIBCPP_STD_VER > 14 1416template <class _ToDuration, class _Clock, class _Duration> 1417inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1418typename enable_if 1419< 1420 __is_duration<_ToDuration>::value, 1421 time_point<_Clock, _ToDuration> 1422>::type 1423floor(const time_point<_Clock, _Duration>& __t) 1424{ 1425 return time_point<_Clock, _ToDuration>{floor<_ToDuration>(__t.time_since_epoch())}; 1426} 1427 1428template <class _ToDuration, class _Clock, class _Duration> 1429inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1430typename enable_if 1431< 1432 __is_duration<_ToDuration>::value, 1433 time_point<_Clock, _ToDuration> 1434>::type 1435ceil(const time_point<_Clock, _Duration>& __t) 1436{ 1437 return time_point<_Clock, _ToDuration>{ceil<_ToDuration>(__t.time_since_epoch())}; 1438} 1439 1440template <class _ToDuration, class _Clock, class _Duration> 1441inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1442typename enable_if 1443< 1444 __is_duration<_ToDuration>::value, 1445 time_point<_Clock, _ToDuration> 1446>::type 1447round(const time_point<_Clock, _Duration>& __t) 1448{ 1449 return time_point<_Clock, _ToDuration>{round<_ToDuration>(__t.time_since_epoch())}; 1450} 1451 1452template <class _Rep, class _Period> 1453inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR 1454typename enable_if 1455< 1456 numeric_limits<_Rep>::is_signed, 1457 duration<_Rep, _Period> 1458>::type 1459abs(duration<_Rep, _Period> __d) 1460{ 1461 return __d >= __d.zero() ? +__d : -__d; 1462} 1463#endif 1464 1465// time_point == 1466 1467template <class _Clock, class _Duration1, class _Duration2> 1468inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1469bool 1470operator==(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1471{ 1472 return __lhs.time_since_epoch() == __rhs.time_since_epoch(); 1473} 1474 1475// time_point != 1476 1477template <class _Clock, class _Duration1, class _Duration2> 1478inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1479bool 1480operator!=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1481{ 1482 return !(__lhs == __rhs); 1483} 1484 1485// time_point < 1486 1487template <class _Clock, class _Duration1, class _Duration2> 1488inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1489bool 1490operator<(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1491{ 1492 return __lhs.time_since_epoch() < __rhs.time_since_epoch(); 1493} 1494 1495// time_point > 1496 1497template <class _Clock, class _Duration1, class _Duration2> 1498inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1499bool 1500operator>(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1501{ 1502 return __rhs < __lhs; 1503} 1504 1505// time_point <= 1506 1507template <class _Clock, class _Duration1, class _Duration2> 1508inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1509bool 1510operator<=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1511{ 1512 return !(__rhs < __lhs); 1513} 1514 1515// time_point >= 1516 1517template <class _Clock, class _Duration1, class _Duration2> 1518inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1519bool 1520operator>=(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1521{ 1522 return !(__lhs < __rhs); 1523} 1524 1525// time_point operator+(time_point x, duration y); 1526 1527template <class _Clock, class _Duration1, class _Rep2, class _Period2> 1528inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1529time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> 1530operator+(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1531{ 1532 typedef time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> _Tr; 1533 return _Tr (__lhs.time_since_epoch() + __rhs); 1534} 1535 1536// time_point operator+(duration x, time_point y); 1537 1538template <class _Rep1, class _Period1, class _Clock, class _Duration2> 1539inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1540time_point<_Clock, typename common_type<duration<_Rep1, _Period1>, _Duration2>::type> 1541operator+(const duration<_Rep1, _Period1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1542{ 1543 return __rhs + __lhs; 1544} 1545 1546// time_point operator-(time_point x, duration y); 1547 1548template <class _Clock, class _Duration1, class _Rep2, class _Period2> 1549inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1550time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> 1551operator-(const time_point<_Clock, _Duration1>& __lhs, const duration<_Rep2, _Period2>& __rhs) 1552{ 1553 typedef time_point<_Clock, typename common_type<_Duration1, duration<_Rep2, _Period2> >::type> _Ret; 1554 return _Ret(__lhs.time_since_epoch() -__rhs); 1555} 1556 1557// duration operator-(time_point x, time_point y); 1558 1559template <class _Clock, class _Duration1, class _Duration2> 1560inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 1561typename common_type<_Duration1, _Duration2>::type 1562operator-(const time_point<_Clock, _Duration1>& __lhs, const time_point<_Clock, _Duration2>& __rhs) 1563{ 1564 return __lhs.time_since_epoch() - __rhs.time_since_epoch(); 1565} 1566 1567////////////////////////////////////////////////////////// 1568/////////////////////// clocks /////////////////////////// 1569////////////////////////////////////////////////////////// 1570 1571class _LIBCPP_TYPE_VIS system_clock 1572{ 1573public: 1574 typedef microseconds duration; 1575 typedef duration::rep rep; 1576 typedef duration::period period; 1577 typedef chrono::time_point<system_clock> time_point; 1578 static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false; 1579 1580 static time_point now() _NOEXCEPT; 1581 static time_t to_time_t (const time_point& __t) _NOEXCEPT; 1582 static time_point from_time_t(time_t __t) _NOEXCEPT; 1583}; 1584 1585#ifndef _LIBCPP_HAS_NO_MONOTONIC_CLOCK 1586class _LIBCPP_TYPE_VIS steady_clock 1587{ 1588public: 1589 typedef nanoseconds duration; 1590 typedef duration::rep rep; 1591 typedef duration::period period; 1592 typedef chrono::time_point<steady_clock, duration> time_point; 1593 static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = true; 1594 1595 static time_point now() _NOEXCEPT; 1596}; 1597 1598typedef steady_clock high_resolution_clock; 1599#else 1600typedef system_clock high_resolution_clock; 1601#endif 1602 1603#if _LIBCPP_STD_VER > 17 1604// [time.clock.file], type file_clock 1605using file_clock = _VSTD_FS::_FilesystemClock; 1606 1607template<class _Duration> 1608using file_time = time_point<file_clock, _Duration>; 1609 1610 1611template <class _Duration> 1612using sys_time = time_point<system_clock, _Duration>; 1613using sys_seconds = sys_time<seconds>; 1614using sys_days = sys_time<days>; 1615 1616struct local_t {}; 1617template<class Duration> 1618using local_time = time_point<local_t, Duration>; 1619using local_seconds = local_time<seconds>; 1620using local_days = local_time<days>; 1621 1622 1623struct last_spec { explicit last_spec() = default; }; 1624 1625class day { 1626private: 1627 unsigned char __d; 1628public: 1629 day() = default; 1630 explicit inline constexpr day(unsigned __val) noexcept : __d(static_cast<unsigned char>(__val)) {} 1631 inline constexpr day& operator++() noexcept { ++__d; return *this; } 1632 inline constexpr day operator++(int) noexcept { day __tmp = *this; ++(*this); return __tmp; } 1633 inline constexpr day& operator--() noexcept { --__d; return *this; } 1634 inline constexpr day operator--(int) noexcept { day __tmp = *this; --(*this); return __tmp; } 1635 constexpr day& operator+=(const days& __dd) noexcept; 1636 constexpr day& operator-=(const days& __dd) noexcept; 1637 explicit inline constexpr operator unsigned() const noexcept { return __d; } 1638 inline constexpr bool ok() const noexcept { return __d >= 1 && __d <= 31; } 1639 }; 1640 1641 1642inline constexpr 1643bool operator==(const day& __lhs, const day& __rhs) noexcept 1644{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } 1645 1646inline constexpr 1647bool operator!=(const day& __lhs, const day& __rhs) noexcept 1648{ return !(__lhs == __rhs); } 1649 1650inline constexpr 1651bool operator< (const day& __lhs, const day& __rhs) noexcept 1652{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); } 1653 1654inline constexpr 1655bool operator> (const day& __lhs, const day& __rhs) noexcept 1656{ return __rhs < __lhs; } 1657 1658inline constexpr 1659bool operator<=(const day& __lhs, const day& __rhs) noexcept 1660{ return !(__rhs < __lhs);} 1661 1662inline constexpr 1663bool operator>=(const day& __lhs, const day& __rhs) noexcept 1664{ return !(__lhs < __rhs); } 1665 1666inline constexpr 1667day operator+ (const day& __lhs, const days& __rhs) noexcept 1668{ return day(static_cast<unsigned>(__lhs) + __rhs.count()); } 1669 1670inline constexpr 1671day operator+ (const days& __lhs, const day& __rhs) noexcept 1672{ return __rhs + __lhs; } 1673 1674inline constexpr 1675day operator- (const day& __lhs, const days& __rhs) noexcept 1676{ return __lhs + -__rhs; } 1677 1678inline constexpr 1679days operator-(const day& __lhs, const day& __rhs) noexcept 1680{ return days(static_cast<int>(static_cast<unsigned>(__lhs)) - 1681 static_cast<int>(static_cast<unsigned>(__rhs))); } 1682 1683inline constexpr day& day::operator+=(const days& __dd) noexcept 1684{ *this = *this + __dd; return *this; } 1685 1686inline constexpr day& day::operator-=(const days& __dd) noexcept 1687{ *this = *this - __dd; return *this; } 1688 1689 1690class month { 1691private: 1692 unsigned char __m; 1693public: 1694 month() = default; 1695 explicit inline constexpr month(unsigned __val) noexcept : __m(static_cast<unsigned char>(__val)) {} 1696 inline constexpr month& operator++() noexcept { ++__m; return *this; } 1697 inline constexpr month operator++(int) noexcept { month __tmp = *this; ++(*this); return __tmp; } 1698 inline constexpr month& operator--() noexcept { --__m; return *this; } 1699 inline constexpr month operator--(int) noexcept { month __tmp = *this; --(*this); return __tmp; } 1700 constexpr month& operator+=(const months& __m1) noexcept; 1701 constexpr month& operator-=(const months& __m1) noexcept; 1702 explicit inline constexpr operator unsigned() const noexcept { return __m; } 1703 inline constexpr bool ok() const noexcept { return __m >= 1 && __m <= 12; } 1704}; 1705 1706 1707inline constexpr 1708bool operator==(const month& __lhs, const month& __rhs) noexcept 1709{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); } 1710 1711inline constexpr 1712bool operator!=(const month& __lhs, const month& __rhs) noexcept 1713{ return !(__lhs == __rhs); } 1714 1715inline constexpr 1716bool operator< (const month& __lhs, const month& __rhs) noexcept 1717{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); } 1718 1719inline constexpr 1720bool operator> (const month& __lhs, const month& __rhs) noexcept 1721{ return __rhs < __lhs; } 1722 1723inline constexpr 1724bool operator<=(const month& __lhs, const month& __rhs) noexcept 1725{ return !(__rhs < __lhs); } 1726 1727inline constexpr 1728bool operator>=(const month& __lhs, const month& __rhs) noexcept 1729{ return !(__lhs < __rhs); } 1730 1731inline constexpr 1732month operator+ (const month& __lhs, const months& __rhs) noexcept 1733{ 1734 auto const __mu = static_cast<long long>(static_cast<unsigned>(__lhs)) + (__rhs.count() - 1); 1735 auto const __yr = (__mu >= 0 ? __mu : __mu - 11) / 12; 1736 return month{static_cast<unsigned>(__mu - __yr * 12 + 1)}; 1737} 1738 1739inline constexpr 1740month operator+ (const months& __lhs, const month& __rhs) noexcept 1741{ return __rhs + __lhs; } 1742 1743inline constexpr 1744month operator- (const month& __lhs, const months& __rhs) noexcept 1745{ return __lhs + -__rhs; } 1746 1747inline constexpr 1748months operator-(const month& __lhs, const month& __rhs) noexcept 1749{ 1750 auto const __dm = static_cast<unsigned>(__lhs) - static_cast<unsigned>(__rhs); 1751 return months(__dm <= 11 ? __dm : __dm + 12); 1752} 1753 1754inline constexpr month& month::operator+=(const months& __dm) noexcept 1755{ *this = *this + __dm; return *this; } 1756 1757inline constexpr month& month::operator-=(const months& __dm) noexcept 1758{ *this = *this - __dm; return *this; } 1759 1760 1761class year { 1762private: 1763 short __y; 1764public: 1765 year() = default; 1766 explicit inline constexpr year(int __val) noexcept : __y(static_cast<short>(__val)) {} 1767 1768 inline constexpr year& operator++() noexcept { ++__y; return *this; } 1769 inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; } 1770 inline constexpr year& operator--() noexcept { --__y; return *this; } 1771 inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; } 1772 constexpr year& operator+=(const years& __dy) noexcept; 1773 constexpr year& operator-=(const years& __dy) noexcept; 1774 inline constexpr year operator+() const noexcept { return *this; } 1775 inline constexpr year operator-() const noexcept { return year{-__y}; } 1776 1777 inline constexpr bool is_leap() const noexcept { return __y % 4 == 0 && (__y % 100 != 0 || __y % 400 == 0); } 1778 explicit inline constexpr operator int() const noexcept { return __y; } 1779 constexpr bool ok() const noexcept; 1780 static inline constexpr year min() noexcept { return year{-32767}; } 1781 static inline constexpr year max() noexcept { return year{ 32767}; } 1782}; 1783 1784 1785inline constexpr 1786bool operator==(const year& __lhs, const year& __rhs) noexcept 1787{ return static_cast<int>(__lhs) == static_cast<int>(__rhs); } 1788 1789inline constexpr 1790bool operator!=(const year& __lhs, const year& __rhs) noexcept 1791{ return !(__lhs == __rhs); } 1792 1793inline constexpr 1794bool operator< (const year& __lhs, const year& __rhs) noexcept 1795{ return static_cast<int>(__lhs) < static_cast<int>(__rhs); } 1796 1797inline constexpr 1798bool operator> (const year& __lhs, const year& __rhs) noexcept 1799{ return __rhs < __lhs; } 1800 1801inline constexpr 1802bool operator<=(const year& __lhs, const year& __rhs) noexcept 1803{ return !(__rhs < __lhs); } 1804 1805inline constexpr 1806bool operator>=(const year& __lhs, const year& __rhs) noexcept 1807{ return !(__lhs < __rhs); } 1808 1809inline constexpr 1810year operator+ (const year& __lhs, const years& __rhs) noexcept 1811{ return year(static_cast<int>(__lhs) + __rhs.count()); } 1812 1813inline constexpr 1814year operator+ (const years& __lhs, const year& __rhs) noexcept 1815{ return __rhs + __lhs; } 1816 1817inline constexpr 1818year operator- (const year& __lhs, const years& __rhs) noexcept 1819{ return __lhs + -__rhs; } 1820 1821inline constexpr 1822years operator-(const year& __lhs, const year& __rhs) noexcept 1823{ return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; } 1824 1825 1826inline constexpr year& year::operator+=(const years& __dy) noexcept 1827{ *this = *this + __dy; return *this; } 1828 1829inline constexpr year& year::operator-=(const years& __dy) noexcept 1830{ *this = *this - __dy; return *this; } 1831 1832inline constexpr bool year::ok() const noexcept 1833{ return static_cast<int>(min()) <= __y && __y <= static_cast<int>(max()); } 1834 1835class weekday_indexed; 1836class weekday_last; 1837 1838class weekday { 1839private: 1840 unsigned char __wd; 1841public: 1842 weekday() = default; 1843 inline explicit constexpr weekday(unsigned __val) noexcept : __wd(static_cast<unsigned char>(__val == 7 ? 0 : __val)) {} 1844 inline constexpr weekday(const sys_days& __sysd) noexcept 1845 : __wd(__weekday_from_days(__sysd.time_since_epoch().count())) {} 1846 inline explicit constexpr weekday(const local_days& __locd) noexcept 1847 : __wd(__weekday_from_days(__locd.time_since_epoch().count())) {} 1848 1849 inline constexpr weekday& operator++() noexcept { __wd = (__wd == 6 ? 0 : __wd + 1); return *this; } 1850 inline constexpr weekday operator++(int) noexcept { weekday __tmp = *this; ++(*this); return __tmp; } 1851 inline constexpr weekday& operator--() noexcept { __wd = (__wd == 0 ? 6 : __wd - 1); return *this; } 1852 inline constexpr weekday operator--(int) noexcept { weekday __tmp = *this; --(*this); return __tmp; } 1853 constexpr weekday& operator+=(const days& __dd) noexcept; 1854 constexpr weekday& operator-=(const days& __dd) noexcept; 1855 inline constexpr unsigned c_encoding() const noexcept { return __wd; } 1856 inline constexpr unsigned iso_encoding() const noexcept { return __wd == 0u ? 7 : __wd; } 1857 inline constexpr bool ok() const noexcept { return __wd <= 6; } 1858 constexpr weekday_indexed operator[](unsigned __index) const noexcept; 1859 constexpr weekday_last operator[](last_spec) const noexcept; 1860 1861 // TODO: Make private? 1862 static constexpr unsigned char __weekday_from_days(int __days) noexcept; 1863}; 1864 1865 1866// https://howardhinnant.github.io/date_algorithms.html#weekday_from_days 1867inline constexpr 1868unsigned char weekday::__weekday_from_days(int __days) noexcept 1869{ 1870 return static_cast<unsigned char>( 1871 static_cast<unsigned>(__days >= -4 ? (__days+4) % 7 : (__days+5) % 7 + 6) 1872 ); 1873} 1874 1875inline constexpr 1876bool operator==(const weekday& __lhs, const weekday& __rhs) noexcept 1877{ return __lhs.c_encoding() == __rhs.c_encoding(); } 1878 1879inline constexpr 1880bool operator!=(const weekday& __lhs, const weekday& __rhs) noexcept 1881{ return !(__lhs == __rhs); } 1882 1883inline constexpr 1884bool operator< (const weekday& __lhs, const weekday& __rhs) noexcept 1885{ return __lhs.c_encoding() < __rhs.c_encoding(); } 1886 1887inline constexpr 1888bool operator> (const weekday& __lhs, const weekday& __rhs) noexcept 1889{ return __rhs < __lhs; } 1890 1891inline constexpr 1892bool operator<=(const weekday& __lhs, const weekday& __rhs) noexcept 1893{ return !(__rhs < __lhs);} 1894 1895inline constexpr 1896bool operator>=(const weekday& __lhs, const weekday& __rhs) noexcept 1897{ return !(__lhs < __rhs); } 1898 1899constexpr weekday operator+(const weekday& __lhs, const days& __rhs) noexcept 1900{ 1901 auto const __mu = static_cast<long long>(__lhs.c_encoding()) + __rhs.count(); 1902 auto const __yr = (__mu >= 0 ? __mu : __mu - 6) / 7; 1903 return weekday{static_cast<unsigned>(__mu - __yr * 7)}; 1904} 1905 1906constexpr weekday operator+(const days& __lhs, const weekday& __rhs) noexcept 1907{ return __rhs + __lhs; } 1908 1909constexpr weekday operator-(const weekday& __lhs, const days& __rhs) noexcept 1910{ return __lhs + -__rhs; } 1911 1912constexpr days operator-(const weekday& __lhs, const weekday& __rhs) noexcept 1913{ 1914 const int __wdu = __lhs.c_encoding() - __rhs.c_encoding(); 1915 const int __wk = (__wdu >= 0 ? __wdu : __wdu-6) / 7; 1916 return days{__wdu - __wk * 7}; 1917} 1918 1919inline constexpr weekday& weekday::operator+=(const days& __dd) noexcept 1920{ *this = *this + __dd; return *this; } 1921 1922inline constexpr weekday& weekday::operator-=(const days& __dd) noexcept 1923{ *this = *this - __dd; return *this; } 1924 1925 1926class weekday_indexed { 1927private: 1928 _VSTD::chrono::weekday __wd; 1929 unsigned char __idx; 1930public: 1931 weekday_indexed() = default; 1932 inline constexpr weekday_indexed(const _VSTD::chrono::weekday& __wdval, unsigned __idxval) noexcept 1933 : __wd{__wdval}, __idx(__idxval) {} 1934 inline constexpr _VSTD::chrono::weekday weekday() const noexcept { return __wd; } 1935 inline constexpr unsigned index() const noexcept { return __idx; } 1936 inline constexpr bool ok() const noexcept { return __wd.ok() && __idx >= 1 && __idx <= 5; } 1937}; 1938 1939inline constexpr 1940bool operator==(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept 1941{ return __lhs.weekday() == __rhs.weekday() && __lhs.index() == __rhs.index(); } 1942 1943inline constexpr 1944bool operator!=(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept 1945{ return !(__lhs == __rhs); } 1946 1947 1948class weekday_last { 1949private: 1950 _VSTD::chrono::weekday __wd; 1951public: 1952 explicit constexpr weekday_last(const _VSTD::chrono::weekday& __val) noexcept 1953 : __wd{__val} {} 1954 constexpr _VSTD::chrono::weekday weekday() const noexcept { return __wd; } 1955 constexpr bool ok() const noexcept { return __wd.ok(); } 1956}; 1957 1958inline constexpr 1959bool operator==(const weekday_last& __lhs, const weekday_last& __rhs) noexcept 1960{ return __lhs.weekday() == __rhs.weekday(); } 1961 1962inline constexpr 1963bool operator!=(const weekday_last& __lhs, const weekday_last& __rhs) noexcept 1964{ return !(__lhs == __rhs); } 1965 1966inline constexpr 1967weekday_indexed weekday::operator[](unsigned __index) const noexcept { return weekday_indexed{*this, __index}; } 1968 1969inline constexpr 1970weekday_last weekday::operator[](last_spec) const noexcept { return weekday_last{*this}; } 1971 1972 1973inline constexpr last_spec last{}; 1974inline constexpr weekday Sunday{0}; 1975inline constexpr weekday Monday{1}; 1976inline constexpr weekday Tuesday{2}; 1977inline constexpr weekday Wednesday{3}; 1978inline constexpr weekday Thursday{4}; 1979inline constexpr weekday Friday{5}; 1980inline constexpr weekday Saturday{6}; 1981 1982inline constexpr month January{1}; 1983inline constexpr month February{2}; 1984inline constexpr month March{3}; 1985inline constexpr month April{4}; 1986inline constexpr month May{5}; 1987inline constexpr month June{6}; 1988inline constexpr month July{7}; 1989inline constexpr month August{8}; 1990inline constexpr month September{9}; 1991inline constexpr month October{10}; 1992inline constexpr month November{11}; 1993inline constexpr month December{12}; 1994 1995 1996class month_day { 1997private: 1998 chrono::month __m; 1999 chrono::day __d; 2000public: 2001 month_day() = default; 2002 constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept 2003 : __m{__mval}, __d{__dval} {} 2004 inline constexpr chrono::month month() const noexcept { return __m; } 2005 inline constexpr chrono::day day() const noexcept { return __d; } 2006 constexpr bool ok() const noexcept; 2007}; 2008 2009inline constexpr 2010bool month_day::ok() const noexcept 2011{ 2012 if (!__m.ok()) return false; 2013 const unsigned __dval = static_cast<unsigned>(__d); 2014 if (__dval < 1 || __dval > 31) return false; 2015 if (__dval <= 29) return true; 2016// Now we've got either 30 or 31 2017 const unsigned __mval = static_cast<unsigned>(__m); 2018 if (__mval == 2) return false; 2019 if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11) 2020 return __dval == 30; 2021 return true; 2022} 2023 2024inline constexpr 2025bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept 2026{ return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); } 2027 2028inline constexpr 2029bool operator!=(const month_day& __lhs, const month_day& __rhs) noexcept 2030{ return !(__lhs == __rhs); } 2031 2032inline constexpr 2033month_day operator/(const month& __lhs, const day& __rhs) noexcept 2034{ return month_day{__lhs, __rhs}; } 2035 2036constexpr 2037month_day operator/(const day& __lhs, const month& __rhs) noexcept 2038{ return __rhs / __lhs; } 2039 2040inline constexpr 2041month_day operator/(const month& __lhs, int __rhs) noexcept 2042{ return __lhs / day(__rhs); } 2043 2044constexpr 2045month_day operator/(int __lhs, const day& __rhs) noexcept 2046{ return month(__lhs) / __rhs; } 2047 2048constexpr 2049month_day operator/(const day& __lhs, int __rhs) noexcept 2050{ return month(__rhs) / __lhs; } 2051 2052 2053inline constexpr 2054bool operator< (const month_day& __lhs, const month_day& __rhs) noexcept 2055{ return __lhs.month() != __rhs.month() ? __lhs.month() < __rhs.month() : __lhs.day() < __rhs.day(); } 2056 2057inline constexpr 2058bool operator> (const month_day& __lhs, const month_day& __rhs) noexcept 2059{ return __rhs < __lhs; } 2060 2061inline constexpr 2062bool operator<=(const month_day& __lhs, const month_day& __rhs) noexcept 2063{ return !(__rhs < __lhs);} 2064 2065inline constexpr 2066bool operator>=(const month_day& __lhs, const month_day& __rhs) noexcept 2067{ return !(__lhs < __rhs); } 2068 2069 2070 2071class month_day_last { 2072private: 2073 chrono::month __m; 2074public: 2075 explicit constexpr month_day_last(const chrono::month& __val) noexcept 2076 : __m{__val} {} 2077 inline constexpr chrono::month month() const noexcept { return __m; } 2078 inline constexpr bool ok() const noexcept { return __m.ok(); } 2079}; 2080 2081inline constexpr 2082bool operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2083{ return __lhs.month() == __rhs.month(); } 2084 2085inline constexpr 2086bool operator!=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2087{ return !(__lhs == __rhs); } 2088 2089inline constexpr 2090bool operator< (const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2091{ return __lhs.month() < __rhs.month(); } 2092 2093inline constexpr 2094bool operator> (const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2095{ return __rhs < __lhs; } 2096 2097inline constexpr 2098bool operator<=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2099{ return !(__rhs < __lhs);} 2100 2101inline constexpr 2102bool operator>=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept 2103{ return !(__lhs < __rhs); } 2104 2105inline constexpr 2106month_day_last operator/(const month& __lhs, last_spec) noexcept 2107{ return month_day_last{__lhs}; } 2108 2109inline constexpr 2110month_day_last operator/(last_spec, const month& __rhs) noexcept 2111{ return month_day_last{__rhs}; } 2112 2113inline constexpr 2114month_day_last operator/(int __lhs, last_spec) noexcept 2115{ return month_day_last{month(__lhs)}; } 2116 2117inline constexpr 2118month_day_last operator/(last_spec, int __rhs) noexcept 2119{ return month_day_last{month(__rhs)}; } 2120 2121 2122class month_weekday { 2123private: 2124 chrono::month __m; 2125 chrono::weekday_indexed __wdi; 2126public: 2127 month_weekday() = default; 2128 constexpr month_weekday(const chrono::month& __mval, const chrono::weekday_indexed& __wdival) noexcept 2129 : __m{__mval}, __wdi{__wdival} {} 2130 inline constexpr chrono::month month() const noexcept { return __m; } 2131 inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; } 2132 inline constexpr bool ok() const noexcept { return __m.ok() && __wdi.ok(); } 2133}; 2134 2135inline constexpr 2136bool operator==(const month_weekday& __lhs, const month_weekday& __rhs) noexcept 2137{ return __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); } 2138 2139inline constexpr 2140bool operator!=(const month_weekday& __lhs, const month_weekday& __rhs) noexcept 2141{ return !(__lhs == __rhs); } 2142 2143inline constexpr 2144month_weekday operator/(const month& __lhs, const weekday_indexed& __rhs) noexcept 2145{ return month_weekday{__lhs, __rhs}; } 2146 2147inline constexpr 2148month_weekday operator/(int __lhs, const weekday_indexed& __rhs) noexcept 2149{ return month_weekday{month(__lhs), __rhs}; } 2150 2151inline constexpr 2152month_weekday operator/(const weekday_indexed& __lhs, const month& __rhs) noexcept 2153{ return month_weekday{__rhs, __lhs}; } 2154 2155inline constexpr 2156month_weekday operator/(const weekday_indexed& __lhs, int __rhs) noexcept 2157{ return month_weekday{month(__rhs), __lhs}; } 2158 2159 2160class month_weekday_last { 2161 chrono::month __m; 2162 chrono::weekday_last __wdl; 2163 public: 2164 constexpr month_weekday_last(const chrono::month& __mval, const chrono::weekday_last& __wdlval) noexcept 2165 : __m{__mval}, __wdl{__wdlval} {} 2166 inline constexpr chrono::month month() const noexcept { return __m; } 2167 inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; } 2168 inline constexpr bool ok() const noexcept { return __m.ok() && __wdl.ok(); } 2169}; 2170 2171inline constexpr 2172bool operator==(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept 2173{ return __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); } 2174 2175inline constexpr 2176bool operator!=(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept 2177{ return !(__lhs == __rhs); } 2178 2179 2180inline constexpr 2181month_weekday_last operator/(const month& __lhs, const weekday_last& __rhs) noexcept 2182{ return month_weekday_last{__lhs, __rhs}; } 2183 2184inline constexpr 2185month_weekday_last operator/(int __lhs, const weekday_last& __rhs) noexcept 2186{ return month_weekday_last{month(__lhs), __rhs}; } 2187 2188inline constexpr 2189month_weekday_last operator/(const weekday_last& __lhs, const month& __rhs) noexcept 2190{ return month_weekday_last{__rhs, __lhs}; } 2191 2192inline constexpr 2193month_weekday_last operator/(const weekday_last& __lhs, int __rhs) noexcept 2194{ return month_weekday_last{month(__rhs), __lhs}; } 2195 2196 2197class year_month { 2198 chrono::year __y; 2199 chrono::month __m; 2200public: 2201 year_month() = default; 2202 constexpr year_month(const chrono::year& __yval, const chrono::month& __mval) noexcept 2203 : __y{__yval}, __m{__mval} {} 2204 inline constexpr chrono::year year() const noexcept { return __y; } 2205 inline constexpr chrono::month month() const noexcept { return __m; } 2206 inline constexpr year_month& operator+=(const months& __dm) noexcept { this->__m += __dm; return *this; } 2207 inline constexpr year_month& operator-=(const months& __dm) noexcept { this->__m -= __dm; return *this; } 2208 inline constexpr year_month& operator+=(const years& __dy) noexcept { this->__y += __dy; return *this; } 2209 inline constexpr year_month& operator-=(const years& __dy) noexcept { this->__y -= __dy; return *this; } 2210 inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok(); } 2211}; 2212 2213inline constexpr 2214year_month operator/(const year& __y, const month& __m) noexcept { return year_month{__y, __m}; } 2215 2216inline constexpr 2217year_month operator/(const year& __y, int __m) noexcept { return year_month{__y, month(__m)}; } 2218 2219inline constexpr 2220bool operator==(const year_month& __lhs, const year_month& __rhs) noexcept 2221{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month(); } 2222 2223inline constexpr 2224bool operator!=(const year_month& __lhs, const year_month& __rhs) noexcept 2225{ return !(__lhs == __rhs); } 2226 2227inline constexpr 2228bool operator< (const year_month& __lhs, const year_month& __rhs) noexcept 2229{ return __lhs.year() != __rhs.year() ? __lhs.year() < __rhs.year() : __lhs.month() < __rhs.month(); } 2230 2231inline constexpr 2232bool operator> (const year_month& __lhs, const year_month& __rhs) noexcept 2233{ return __rhs < __lhs; } 2234 2235inline constexpr 2236bool operator<=(const year_month& __lhs, const year_month& __rhs) noexcept 2237{ return !(__rhs < __lhs);} 2238 2239inline constexpr 2240bool operator>=(const year_month& __lhs, const year_month& __rhs) noexcept 2241{ return !(__lhs < __rhs); } 2242 2243constexpr year_month operator+(const year_month& __lhs, const months& __rhs) noexcept 2244{ 2245 int __dmi = static_cast<int>(static_cast<unsigned>(__lhs.month())) - 1 + __rhs.count(); 2246 const int __dy = (__dmi >= 0 ? __dmi : __dmi-11) / 12; 2247 __dmi = __dmi - __dy * 12 + 1; 2248 return (__lhs.year() + years(__dy)) / month(static_cast<unsigned>(__dmi)); 2249} 2250 2251constexpr year_month operator+(const months& __lhs, const year_month& __rhs) noexcept 2252{ return __rhs + __lhs; } 2253 2254constexpr year_month operator+(const year_month& __lhs, const years& __rhs) noexcept 2255{ return (__lhs.year() + __rhs) / __lhs.month(); } 2256 2257constexpr year_month operator+(const years& __lhs, const year_month& __rhs) noexcept 2258{ return __rhs + __lhs; } 2259 2260constexpr months operator-(const year_month& __lhs, const year_month& __rhs) noexcept 2261{ return (__lhs.year() - __rhs.year()) + months(static_cast<unsigned>(__lhs.month()) - static_cast<unsigned>(__rhs.month())); } 2262 2263constexpr year_month operator-(const year_month& __lhs, const months& __rhs) noexcept 2264{ return __lhs + -__rhs; } 2265 2266constexpr year_month operator-(const year_month& __lhs, const years& __rhs) noexcept 2267{ return __lhs + -__rhs; } 2268 2269class year_month_day_last; 2270 2271class year_month_day { 2272private: 2273 chrono::year __y; 2274 chrono::month __m; 2275 chrono::day __d; 2276public: 2277 year_month_day() = default; 2278 inline constexpr year_month_day( 2279 const chrono::year& __yval, const chrono::month& __mval, const chrono::day& __dval) noexcept 2280 : __y{__yval}, __m{__mval}, __d{__dval} {} 2281 constexpr year_month_day(const year_month_day_last& __ymdl) noexcept; 2282 inline constexpr year_month_day(const sys_days& __sysd) noexcept 2283 : year_month_day(__from_days(__sysd.time_since_epoch())) {} 2284 inline explicit constexpr year_month_day(const local_days& __locd) noexcept 2285 : year_month_day(__from_days(__locd.time_since_epoch())) {} 2286 2287 constexpr year_month_day& operator+=(const months& __dm) noexcept; 2288 constexpr year_month_day& operator-=(const months& __dm) noexcept; 2289 constexpr year_month_day& operator+=(const years& __dy) noexcept; 2290 constexpr year_month_day& operator-=(const years& __dy) noexcept; 2291 2292 inline constexpr chrono::year year() const noexcept { return __y; } 2293 inline constexpr chrono::month month() const noexcept { return __m; } 2294 inline constexpr chrono::day day() const noexcept { return __d; } 2295 inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } 2296 inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } 2297 2298 constexpr bool ok() const noexcept; 2299 2300 static constexpr year_month_day __from_days(days __d) noexcept; 2301 constexpr days __to_days() const noexcept; 2302}; 2303 2304 2305// https://howardhinnant.github.io/date_algorithms.html#civil_from_days 2306inline constexpr 2307year_month_day 2308year_month_day::__from_days(days __d) noexcept 2309{ 2310 static_assert(std::numeric_limits<unsigned>::digits >= 18, ""); 2311 static_assert(std::numeric_limits<int>::digits >= 20 , ""); 2312 const int __z = __d.count() + 719468; 2313 const int __era = (__z >= 0 ? __z : __z - 146096) / 146097; 2314 const unsigned __doe = static_cast<unsigned>(__z - __era * 146097); // [0, 146096] 2315 const unsigned __yoe = (__doe - __doe/1460 + __doe/36524 - __doe/146096) / 365; // [0, 399] 2316 const int __yr = static_cast<int>(__yoe) + __era * 400; 2317 const unsigned __doy = __doe - (365 * __yoe + __yoe/4 - __yoe/100); // [0, 365] 2318 const unsigned __mp = (5 * __doy + 2)/153; // [0, 11] 2319 const unsigned __dy = __doy - (153 * __mp + 2)/5 + 1; // [1, 31] 2320 const unsigned __mth = __mp + (__mp < 10 ? 3 : -9); // [1, 12] 2321 return year_month_day{chrono::year{__yr + (__mth <= 2)}, chrono::month{__mth}, chrono::day{__dy}}; 2322} 2323 2324// https://howardhinnant.github.io/date_algorithms.html#days_from_civil 2325inline constexpr days year_month_day::__to_days() const noexcept 2326{ 2327 static_assert(std::numeric_limits<unsigned>::digits >= 18, ""); 2328 static_assert(std::numeric_limits<int>::digits >= 20 , ""); 2329 2330 const int __yr = static_cast<int>(__y) - (__m <= February); 2331 const unsigned __mth = static_cast<unsigned>(__m); 2332 const unsigned __dy = static_cast<unsigned>(__d); 2333 2334 const int __era = (__yr >= 0 ? __yr : __yr - 399) / 400; 2335 const unsigned __yoe = static_cast<unsigned>(__yr - __era * 400); // [0, 399] 2336 const unsigned __doy = (153 * (__mth + (__mth > 2 ? -3 : 9)) + 2) / 5 + __dy-1; // [0, 365] 2337 const unsigned __doe = __yoe * 365 + __yoe/4 - __yoe/100 + __doy; // [0, 146096] 2338 return days{__era * 146097 + static_cast<int>(__doe) - 719468}; 2339} 2340 2341inline constexpr 2342bool operator==(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2343{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); } 2344 2345inline constexpr 2346bool operator!=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2347{ return !(__lhs == __rhs); } 2348 2349inline constexpr 2350bool operator< (const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2351{ 2352 if (__lhs.year() < __rhs.year()) return true; 2353 if (__lhs.year() > __rhs.year()) return false; 2354 if (__lhs.month() < __rhs.month()) return true; 2355 if (__lhs.month() > __rhs.month()) return false; 2356 return __lhs.day() < __rhs.day(); 2357} 2358 2359inline constexpr 2360bool operator> (const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2361{ return __rhs < __lhs; } 2362 2363inline constexpr 2364bool operator<=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2365{ return !(__rhs < __lhs);} 2366 2367inline constexpr 2368bool operator>=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept 2369{ return !(__lhs < __rhs); } 2370 2371inline constexpr 2372year_month_day operator/(const year_month& __lhs, const day& __rhs) noexcept 2373{ return year_month_day{__lhs.year(), __lhs.month(), __rhs}; } 2374 2375inline constexpr 2376year_month_day operator/(const year_month& __lhs, int __rhs) noexcept 2377{ return __lhs / day(__rhs); } 2378 2379inline constexpr 2380year_month_day operator/(const year& __lhs, const month_day& __rhs) noexcept 2381{ return __lhs / __rhs.month() / __rhs.day(); } 2382 2383inline constexpr 2384year_month_day operator/(int __lhs, const month_day& __rhs) noexcept 2385{ return year(__lhs) / __rhs; } 2386 2387inline constexpr 2388year_month_day operator/(const month_day& __lhs, const year& __rhs) noexcept 2389{ return __rhs / __lhs; } 2390 2391inline constexpr 2392year_month_day operator/(const month_day& __lhs, int __rhs) noexcept 2393{ return year(__rhs) / __lhs; } 2394 2395 2396inline constexpr 2397year_month_day operator+(const year_month_day& __lhs, const months& __rhs) noexcept 2398{ return (__lhs.year()/__lhs.month() + __rhs)/__lhs.day(); } 2399 2400inline constexpr 2401year_month_day operator+(const months& __lhs, const year_month_day& __rhs) noexcept 2402{ return __rhs + __lhs; } 2403 2404inline constexpr 2405year_month_day operator-(const year_month_day& __lhs, const months& __rhs) noexcept 2406{ return __lhs + -__rhs; } 2407 2408inline constexpr 2409year_month_day operator+(const year_month_day& __lhs, const years& __rhs) noexcept 2410{ return (__lhs.year() + __rhs) / __lhs.month() / __lhs.day(); } 2411 2412inline constexpr 2413year_month_day operator+(const years& __lhs, const year_month_day& __rhs) noexcept 2414{ return __rhs + __lhs; } 2415 2416inline constexpr 2417year_month_day operator-(const year_month_day& __lhs, const years& __rhs) noexcept 2418{ return __lhs + -__rhs; } 2419 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 months& __dm) noexcept { *this = *this - __dm; return *this; } 2422inline constexpr year_month_day& year_month_day::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2423inline constexpr year_month_day& year_month_day::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2424 2425class year_month_day_last { 2426private: 2427 chrono::year __y; 2428 chrono::month_day_last __mdl; 2429public: 2430 constexpr year_month_day_last(const year& __yval, const month_day_last& __mdlval) noexcept 2431 : __y{__yval}, __mdl{__mdlval} {} 2432 2433 constexpr year_month_day_last& operator+=(const months& __m) noexcept; 2434 constexpr year_month_day_last& operator-=(const months& __m) noexcept; 2435 constexpr year_month_day_last& operator+=(const years& __y) noexcept; 2436 constexpr year_month_day_last& operator-=(const years& __y) noexcept; 2437 2438 inline constexpr chrono::year year() const noexcept { return __y; } 2439 inline constexpr chrono::month month() const noexcept { return __mdl.month(); } 2440 inline constexpr chrono::month_day_last month_day_last() const noexcept { return __mdl; } 2441 constexpr chrono::day day() const noexcept; 2442 inline constexpr operator sys_days() const noexcept { return sys_days{year()/month()/day()}; } 2443 inline explicit constexpr operator local_days() const noexcept { return local_days{year()/month()/day()}; } 2444 inline constexpr bool ok() const noexcept { return __y.ok() && __mdl.ok(); } 2445}; 2446 2447inline constexpr 2448chrono::day year_month_day_last::day() const noexcept 2449{ 2450 constexpr chrono::day __d[] = 2451 { 2452 chrono::day(31), chrono::day(28), chrono::day(31), 2453 chrono::day(30), chrono::day(31), chrono::day(30), 2454 chrono::day(31), chrono::day(31), chrono::day(30), 2455 chrono::day(31), chrono::day(30), chrono::day(31) 2456 }; 2457 return month() != February || !__y.is_leap() ? 2458 __d[static_cast<unsigned>(month()) - 1] : chrono::day{29}; 2459} 2460 2461inline constexpr 2462bool operator==(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2463{ return __lhs.year() == __rhs.year() && __lhs.month_day_last() == __rhs.month_day_last(); } 2464 2465inline constexpr 2466bool operator!=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2467{ return !(__lhs == __rhs); } 2468 2469inline constexpr 2470bool operator< (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2471{ 2472 if (__lhs.year() < __rhs.year()) return true; 2473 if (__lhs.year() > __rhs.year()) return false; 2474 return __lhs.month_day_last() < __rhs.month_day_last(); 2475} 2476 2477inline constexpr 2478bool operator> (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2479{ return __rhs < __lhs; } 2480 2481inline constexpr 2482bool operator<=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2483{ return !(__rhs < __lhs);} 2484 2485inline constexpr 2486bool operator>=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept 2487{ return !(__lhs < __rhs); } 2488 2489inline constexpr year_month_day_last operator/(const year_month& __lhs, last_spec) noexcept 2490{ return year_month_day_last{__lhs.year(), month_day_last{__lhs.month()}}; } 2491 2492inline constexpr year_month_day_last operator/(const year& __lhs, const month_day_last& __rhs) noexcept 2493{ return year_month_day_last{__lhs, __rhs}; } 2494 2495inline constexpr year_month_day_last operator/(int __lhs, const month_day_last& __rhs) noexcept 2496{ return year_month_day_last{year{__lhs}, __rhs}; } 2497 2498inline constexpr year_month_day_last operator/(const month_day_last& __lhs, const year& __rhs) noexcept 2499{ return __rhs / __lhs; } 2500 2501inline constexpr year_month_day_last operator/(const month_day_last& __lhs, int __rhs) noexcept 2502{ return year{__rhs} / __lhs; } 2503 2504 2505inline constexpr 2506year_month_day_last operator+(const year_month_day_last& __lhs, const months& __rhs) noexcept 2507{ return (__lhs.year() / __lhs.month() + __rhs) / last; } 2508 2509inline constexpr 2510year_month_day_last operator+(const months& __lhs, const year_month_day_last& __rhs) noexcept 2511{ return __rhs + __lhs; } 2512 2513inline constexpr 2514year_month_day_last operator-(const year_month_day_last& __lhs, const months& __rhs) noexcept 2515{ return __lhs + (-__rhs); } 2516 2517inline constexpr 2518year_month_day_last operator+(const year_month_day_last& __lhs, const years& __rhs) noexcept 2519{ return year_month_day_last{__lhs.year() + __rhs, __lhs.month_day_last()}; } 2520 2521inline constexpr 2522year_month_day_last operator+(const years& __lhs, const year_month_day_last& __rhs) noexcept 2523{ return __rhs + __lhs; } 2524 2525inline constexpr 2526year_month_day_last operator-(const year_month_day_last& __lhs, const years& __rhs) noexcept 2527{ return __lhs + (-__rhs); } 2528 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 months& __dm) noexcept { *this = *this - __dm; return *this; } 2531inline constexpr year_month_day_last& year_month_day_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2532inline constexpr year_month_day_last& year_month_day_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2533 2534inline constexpr year_month_day::year_month_day(const year_month_day_last& __ymdl) noexcept 2535 : __y{__ymdl.year()}, __m{__ymdl.month()}, __d{__ymdl.day()} {} 2536 2537inline constexpr bool year_month_day::ok() const noexcept 2538{ 2539 if (!__y.ok() || !__m.ok()) return false; 2540 return chrono::day{1} <= __d && __d <= (__y / __m / last).day(); 2541} 2542 2543class year_month_weekday { 2544 chrono::year __y; 2545 chrono::month __m; 2546 chrono::weekday_indexed __wdi; 2547public: 2548 year_month_weekday() = default; 2549 constexpr year_month_weekday(const chrono::year& __yval, const chrono::month& __mval, 2550 const chrono::weekday_indexed& __wdival) noexcept 2551 : __y{__yval}, __m{__mval}, __wdi{__wdival} {} 2552 constexpr year_month_weekday(const sys_days& __sysd) noexcept 2553 : year_month_weekday(__from_days(__sysd.time_since_epoch())) {} 2554 inline explicit constexpr year_month_weekday(const local_days& __locd) noexcept 2555 : year_month_weekday(__from_days(__locd.time_since_epoch())) {} 2556 constexpr year_month_weekday& operator+=(const months& m) noexcept; 2557 constexpr year_month_weekday& operator-=(const months& m) noexcept; 2558 constexpr year_month_weekday& operator+=(const years& y) noexcept; 2559 constexpr year_month_weekday& operator-=(const years& y) noexcept; 2560 2561 inline constexpr chrono::year year() const noexcept { return __y; } 2562 inline constexpr chrono::month month() const noexcept { return __m; } 2563 inline constexpr chrono::weekday weekday() const noexcept { return __wdi.weekday(); } 2564 inline constexpr unsigned index() const noexcept { return __wdi.index(); } 2565 inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; } 2566 2567 inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } 2568 inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } 2569 inline constexpr bool ok() const noexcept 2570 { 2571 if (!__y.ok() || !__m.ok() || !__wdi.ok()) return false; 2572 if (__wdi.index() <= 4) return true; 2573 auto __nth_weekday_day = 2574 __wdi.weekday() - 2575 chrono::weekday{static_cast<sys_days>(__y / __m / 1)} + 2576 days{(__wdi.index() - 1) * 7 + 1}; 2577 return static_cast<unsigned>(__nth_weekday_day.count()) <= 2578 static_cast<unsigned>((__y / __m / last).day()); 2579 } 2580 2581 static constexpr year_month_weekday __from_days(days __d) noexcept; 2582 constexpr days __to_days() const noexcept; 2583}; 2584 2585inline constexpr 2586year_month_weekday year_month_weekday::__from_days(days __d) noexcept 2587{ 2588 const sys_days __sysd{__d}; 2589 const chrono::weekday __wd = chrono::weekday(__sysd); 2590 const year_month_day __ymd = year_month_day(__sysd); 2591 return year_month_weekday{__ymd.year(), __ymd.month(), 2592 __wd[(static_cast<unsigned>(__ymd.day())-1)/7+1]}; 2593} 2594 2595inline constexpr 2596days year_month_weekday::__to_days() const noexcept 2597{ 2598 const sys_days __sysd = sys_days(__y/__m/1); 2599 return (__sysd + (__wdi.weekday() - chrono::weekday(__sysd) + days{(__wdi.index()-1)*7})) 2600 .time_since_epoch(); 2601} 2602 2603inline constexpr 2604bool operator==(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept 2605{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); } 2606 2607inline constexpr 2608bool operator!=(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept 2609{ return !(__lhs == __rhs); } 2610 2611inline constexpr 2612year_month_weekday operator/(const year_month& __lhs, const weekday_indexed& __rhs) noexcept 2613{ return year_month_weekday{__lhs.year(), __lhs.month(), __rhs}; } 2614 2615inline constexpr 2616year_month_weekday operator/(const year& __lhs, const month_weekday& __rhs) noexcept 2617{ return year_month_weekday{__lhs, __rhs.month(), __rhs.weekday_indexed()}; } 2618 2619inline constexpr 2620year_month_weekday operator/(int __lhs, const month_weekday& __rhs) noexcept 2621{ return year(__lhs) / __rhs; } 2622 2623inline constexpr 2624year_month_weekday operator/(const month_weekday& __lhs, const year& __rhs) noexcept 2625{ return __rhs / __lhs; } 2626 2627inline constexpr 2628year_month_weekday operator/(const month_weekday& __lhs, int __rhs) noexcept 2629{ return year(__rhs) / __lhs; } 2630 2631 2632inline constexpr 2633year_month_weekday operator+(const year_month_weekday& __lhs, const months& __rhs) noexcept 2634{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_indexed(); } 2635 2636inline constexpr 2637year_month_weekday operator+(const months& __lhs, const year_month_weekday& __rhs) noexcept 2638{ return __rhs + __lhs; } 2639 2640inline constexpr 2641year_month_weekday operator-(const year_month_weekday& __lhs, const months& __rhs) noexcept 2642{ return __lhs + (-__rhs); } 2643 2644inline constexpr 2645year_month_weekday operator+(const year_month_weekday& __lhs, const years& __rhs) noexcept 2646{ return year_month_weekday{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_indexed()}; } 2647 2648inline constexpr 2649year_month_weekday operator+(const years& __lhs, const year_month_weekday& __rhs) noexcept 2650{ return __rhs + __lhs; } 2651 2652inline constexpr 2653year_month_weekday operator-(const year_month_weekday& __lhs, const years& __rhs) noexcept 2654{ return __lhs + (-__rhs); } 2655 2656 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 months& __dm) noexcept { *this = *this - __dm; return *this; } 2659inline constexpr year_month_weekday& year_month_weekday::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2660inline constexpr year_month_weekday& year_month_weekday::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2661 2662class year_month_weekday_last { 2663private: 2664 chrono::year __y; 2665 chrono::month __m; 2666 chrono::weekday_last __wdl; 2667public: 2668 constexpr year_month_weekday_last(const chrono::year& __yval, const chrono::month& __mval, 2669 const chrono::weekday_last& __wdlval) noexcept 2670 : __y{__yval}, __m{__mval}, __wdl{__wdlval} {} 2671 constexpr year_month_weekday_last& operator+=(const months& __dm) noexcept; 2672 constexpr year_month_weekday_last& operator-=(const months& __dm) noexcept; 2673 constexpr year_month_weekday_last& operator+=(const years& __dy) noexcept; 2674 constexpr year_month_weekday_last& operator-=(const years& __dy) noexcept; 2675 2676 inline constexpr chrono::year year() const noexcept { return __y; } 2677 inline constexpr chrono::month month() const noexcept { return __m; } 2678 inline constexpr chrono::weekday weekday() const noexcept { return __wdl.weekday(); } 2679 inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; } 2680 inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; } 2681 inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; } 2682 inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok() && __wdl.ok(); } 2683 2684 constexpr days __to_days() const noexcept; 2685 2686}; 2687 2688inline constexpr 2689days year_month_weekday_last::__to_days() const noexcept 2690{ 2691 const sys_days __last = sys_days{__y/__m/last}; 2692 return (__last - (chrono::weekday{__last} - __wdl.weekday())).time_since_epoch(); 2693 2694} 2695 2696inline constexpr 2697bool operator==(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept 2698{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); } 2699 2700inline constexpr 2701bool operator!=(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept 2702{ return !(__lhs == __rhs); } 2703 2704 2705inline constexpr 2706year_month_weekday_last operator/(const year_month& __lhs, const weekday_last& __rhs) noexcept 2707{ return year_month_weekday_last{__lhs.year(), __lhs.month(), __rhs}; } 2708 2709inline constexpr 2710year_month_weekday_last operator/(const year& __lhs, const month_weekday_last& __rhs) noexcept 2711{ return year_month_weekday_last{__lhs, __rhs.month(), __rhs.weekday_last()}; } 2712 2713inline constexpr 2714year_month_weekday_last operator/(int __lhs, const month_weekday_last& __rhs) noexcept 2715{ return year(__lhs) / __rhs; } 2716 2717inline constexpr 2718year_month_weekday_last operator/(const month_weekday_last& __lhs, const year& __rhs) noexcept 2719{ return __rhs / __lhs; } 2720 2721inline constexpr 2722year_month_weekday_last operator/(const month_weekday_last& __lhs, int __rhs) noexcept 2723{ return year(__rhs) / __lhs; } 2724 2725 2726inline constexpr 2727year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const months& __rhs) noexcept 2728{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_last(); } 2729 2730inline constexpr 2731year_month_weekday_last operator+(const months& __lhs, const year_month_weekday_last& __rhs) noexcept 2732{ return __rhs + __lhs; } 2733 2734inline constexpr 2735year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const months& __rhs) noexcept 2736{ return __lhs + (-__rhs); } 2737 2738inline constexpr 2739year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const years& __rhs) noexcept 2740{ return year_month_weekday_last{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_last()}; } 2741 2742inline constexpr 2743year_month_weekday_last operator+(const years& __lhs, const year_month_weekday_last& __rhs) noexcept 2744{ return __rhs + __lhs; } 2745 2746inline constexpr 2747year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const years& __rhs) noexcept 2748{ return __lhs + (-__rhs); } 2749 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 months& __dm) noexcept { *this = *this - __dm; return *this; } 2752inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; } 2753inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; } 2754 2755 2756template <class _Duration> 2757class hh_mm_ss 2758{ 2759private: 2760 static_assert(__is_duration<_Duration>::value, "template parameter of hh_mm_ss must be a std::chrono::duration"); 2761 using __CommonType = common_type_t<_Duration, chrono::seconds>; 2762 2763 static constexpr uint64_t __pow10(unsigned __exp) 2764 { 2765 uint64_t __ret = 1; 2766 for (unsigned __i = 0; __i < __exp; ++__i) 2767 __ret *= 10U; 2768 return __ret; 2769 } 2770 2771 static constexpr unsigned __width(uint64_t __n, uint64_t __d = 10, unsigned __w = 0) 2772 { 2773 if (__n >= 2 && __d != 0 && __w < 19) 2774 return 1 + __width(__n, __d % __n * 10, __w+1); 2775 return 0; 2776 } 2777 2778public: 2779 static unsigned constexpr fractional_width = __width(__CommonType::period::den) < 19 ? 2780 __width(__CommonType::period::den) : 6u; 2781 using precision = duration<typename __CommonType::rep, ratio<1, __pow10(fractional_width)>>; 2782 2783 constexpr hh_mm_ss() noexcept : hh_mm_ss{_Duration::zero()} {} 2784 2785 constexpr explicit hh_mm_ss(_Duration __d) noexcept : 2786 __is_neg(__d < _Duration(0)), 2787 __h(duration_cast<chrono::hours> (abs(__d))), 2788 __m(duration_cast<chrono::minutes>(abs(__d) - hours())), 2789 __s(duration_cast<chrono::seconds>(abs(__d) - hours() - minutes())), 2790 __f(duration_cast<precision> (abs(__d) - hours() - minutes() - seconds())) 2791 {} 2792 2793 constexpr bool is_negative() const noexcept { return __is_neg; } 2794 constexpr chrono::hours hours() const noexcept { return __h; } 2795 constexpr chrono::minutes minutes() const noexcept { return __m; } 2796 constexpr chrono::seconds seconds() const noexcept { return __s; } 2797 constexpr precision subseconds() const noexcept { return __f; } 2798 2799 constexpr precision to_duration() const noexcept 2800 { 2801 auto __dur = __h + __m + __s + __f; 2802 return __is_neg ? -__dur : __dur; 2803 } 2804 2805 constexpr explicit operator precision() const noexcept { return to_duration(); } 2806 2807private: 2808 bool __is_neg; 2809 chrono::hours __h; 2810 chrono::minutes __m; 2811 chrono::seconds __s; 2812 precision __f; 2813}; 2814 2815constexpr bool is_am(const hours& __h) noexcept { return __h >= hours( 0) && __h < hours(12); } 2816constexpr bool is_pm(const hours& __h) noexcept { return __h >= hours(12) && __h < hours(24); } 2817 2818constexpr hours make12(const hours& __h) noexcept 2819{ 2820 if (__h == hours( 0)) return hours(12); 2821 else if (__h <= hours(12)) return __h; 2822 else return __h - hours(12); 2823} 2824 2825constexpr hours make24(const hours& __h, bool __is_pm) noexcept 2826{ 2827 if (__is_pm) 2828 return __h == hours(12) ? __h : __h + hours(12); 2829 else 2830 return __h == hours(12) ? hours(0) : __h; 2831} 2832 2833#endif // _LIBCPP_STD_VER > 17 2834} // chrono 2835 2836#if _LIBCPP_STD_VER > 11 2837// Suffixes for duration literals [time.duration.literals] 2838inline namespace literals 2839{ 2840 inline namespace chrono_literals 2841 { 2842 2843 constexpr chrono::hours operator""h(unsigned long long __h) 2844 { 2845 return chrono::hours(static_cast<chrono::hours::rep>(__h)); 2846 } 2847 2848 constexpr chrono::duration<long double, ratio<3600,1>> operator""h(long double __h) 2849 { 2850 return chrono::duration<long double, ratio<3600,1>>(__h); 2851 } 2852 2853 2854 constexpr chrono::minutes operator""min(unsigned long long __m) 2855 { 2856 return chrono::minutes(static_cast<chrono::minutes::rep>(__m)); 2857 } 2858 2859 constexpr chrono::duration<long double, ratio<60,1>> operator""min(long double __m) 2860 { 2861 return chrono::duration<long double, ratio<60,1>> (__m); 2862 } 2863 2864 2865 constexpr chrono::seconds operator""s(unsigned long long __s) 2866 { 2867 return chrono::seconds(static_cast<chrono::seconds::rep>(__s)); 2868 } 2869 2870 constexpr chrono::duration<long double> operator""s(long double __s) 2871 { 2872 return chrono::duration<long double> (__s); 2873 } 2874 2875 2876 constexpr chrono::milliseconds operator""ms(unsigned long long __ms) 2877 { 2878 return chrono::milliseconds(static_cast<chrono::milliseconds::rep>(__ms)); 2879 } 2880 2881 constexpr chrono::duration<long double, milli> operator""ms(long double __ms) 2882 { 2883 return chrono::duration<long double, milli>(__ms); 2884 } 2885 2886 2887 constexpr chrono::microseconds operator""us(unsigned long long __us) 2888 { 2889 return chrono::microseconds(static_cast<chrono::microseconds::rep>(__us)); 2890 } 2891 2892 constexpr chrono::duration<long double, micro> operator""us(long double __us) 2893 { 2894 return chrono::duration<long double, micro> (__us); 2895 } 2896 2897 2898 constexpr chrono::nanoseconds operator""ns(unsigned long long __ns) 2899 { 2900 return chrono::nanoseconds(static_cast<chrono::nanoseconds::rep>(__ns)); 2901 } 2902 2903 constexpr chrono::duration<long double, nano> operator""ns(long double __ns) 2904 { 2905 return chrono::duration<long double, nano> (__ns); 2906 } 2907 2908#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_CXX20_CHRONO_LITERALS) 2909 constexpr chrono::day operator ""d(unsigned long long __d) noexcept 2910 { 2911 return chrono::day(static_cast<unsigned>(__d)); 2912 } 2913 2914 constexpr chrono::year operator ""y(unsigned long long __y) noexcept 2915 { 2916 return chrono::year(static_cast<int>(__y)); 2917 } 2918#endif 2919}} 2920 2921namespace chrono { // hoist the literals into namespace std::chrono 2922 using namespace literals::chrono_literals; 2923} 2924 2925#endif 2926 2927_LIBCPP_END_NAMESPACE_STD 2928 2929#ifndef _LIBCPP_CXX03_LANG 2930_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM 2931struct _FilesystemClock { 2932#if !defined(_LIBCPP_HAS_NO_INT128) 2933 typedef __int128_t rep; 2934 typedef nano period; 2935#else 2936 typedef long long rep; 2937 typedef nano period; 2938#endif 2939 2940 typedef chrono::duration<rep, period> duration; 2941 typedef chrono::time_point<_FilesystemClock> time_point; 2942 2943 _LIBCPP_EXPORTED_FROM_ABI 2944 static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false; 2945 2946 _LIBCPP_AVAILABILITY_FILESYSTEM _LIBCPP_FUNC_VIS static time_point now() noexcept; 2947 2948 _LIBCPP_INLINE_VISIBILITY 2949 static time_t to_time_t(const time_point& __t) noexcept { 2950 typedef chrono::duration<rep> __secs; 2951 return time_t( 2952 chrono::duration_cast<__secs>(__t.time_since_epoch()).count()); 2953 } 2954 2955 _LIBCPP_INLINE_VISIBILITY 2956 static time_point from_time_t(time_t __t) noexcept { 2957 typedef chrono::duration<rep> __secs; 2958 return time_point(__secs(__t)); 2959 } 2960}; 2961_LIBCPP_END_NAMESPACE_FILESYSTEM 2962#endif // !_LIBCPP_CXX03_LANG 2963 2964_LIBCPP_POP_MACROS 2965 2966#endif // _LIBCPP_CHRONO 2967