[libcxx-commits] [libcxx] d786249 - [NFC][libc++] Modularize chrono's calendar.
Mark de Wever via libcxx-commits
libcxx-commits at lists.llvm.org
Wed Apr 6 08:47:59 PDT 2022
Author: Mark de Wever
Date: 2022-04-06T17:47:53+02:00
New Revision: d78624975b4376e1758fb9b78fdc5bfea7be875a
URL: https://github.com/llvm/llvm-project/commit/d78624975b4376e1758fb9b78fdc5bfea7be875a
DIFF: https://github.com/llvm/llvm-project/commit/d78624975b4376e1758fb9b78fdc5bfea7be875a.diff
LOG: [NFC][libc++] Modularize chrono's calendar.
The is a followup of D116965 to split the calendar header. This is a
preparation to add the formatters for the chrono header.
The code is only moved no other changes have been made.
Reviewed By: ldionne, #libc, philnik
Differential Revision: https://reviews.llvm.org/D122995
Added:
libcxx/include/__chrono/day.h
libcxx/include/__chrono/hh_mm_ss.h
libcxx/include/__chrono/literals.h
libcxx/include/__chrono/month.h
libcxx/include/__chrono/month_weekday.h
libcxx/include/__chrono/monthday.h
libcxx/include/__chrono/weekday.h
libcxx/include/__chrono/year.h
libcxx/include/__chrono/year_month.h
libcxx/include/__chrono/year_month_day.h
libcxx/include/__chrono/year_month_weekday.h
Modified:
libcxx/include/CMakeLists.txt
libcxx/include/__chrono/calendar.h
libcxx/include/chrono
libcxx/include/module.modulemap
libcxx/test/libcxx/private_headers.verify.cpp
Removed:
################################################################################
diff --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt
index 30edc3f6b51f1..6d37f91be4cd9 100644
--- a/libcxx/include/CMakeLists.txt
+++ b/libcxx/include/CMakeLists.txt
@@ -122,12 +122,23 @@ set(files
__charconv/to_chars_result.h
__chrono/calendar.h
__chrono/convert_to_timespec.h
+ __chrono/day.h
__chrono/duration.h
__chrono/file_clock.h
+ __chrono/hh_mm_ss.h
__chrono/high_resolution_clock.h
+ __chrono/literals.h
+ __chrono/month.h
+ __chrono/month_weekday.h
+ __chrono/monthday.h
__chrono/steady_clock.h
__chrono/system_clock.h
__chrono/time_point.h
+ __chrono/weekday.h
+ __chrono/year.h
+ __chrono/year_month.h
+ __chrono/year_month_day.h
+ __chrono/year_month_weekday.h
__compare/common_comparison_category.h
__compare/compare_partial_order_fallback.h
__compare/compare_strong_order_fallback.h
diff --git a/libcxx/include/__chrono/calendar.h b/libcxx/include/__chrono/calendar.h
index c8b3ad5aad800..d3762a631c911 100644
--- a/libcxx/include/__chrono/calendar.h
+++ b/libcxx/include/__chrono/calendar.h
@@ -11,20 +11,13 @@
#define _LIBCPP___CHRONO_CALENDAR_H
#include <__chrono/duration.h>
-#include <__chrono/system_clock.h>
#include <__chrono/time_point.h>
#include <__config>
-#include <limits>
-#include <ratio>
-#include <type_traits>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
#if _LIBCPP_STD_VER > 17
_LIBCPP_BEGIN_NAMESPACE_STD
@@ -39,1265 +32,13 @@ using local_seconds = local_time<seconds>;
using local_days = local_time<days>;
struct last_spec { _LIBCPP_HIDE_FROM_ABI explicit last_spec() = default; };
-
-class day {
-private:
- unsigned char __d;
-public:
- _LIBCPP_HIDE_FROM_ABI day() = default;
- _LIBCPP_HIDE_FROM_ABI explicit inline constexpr day(unsigned __val) noexcept : __d(static_cast<unsigned char>(__val)) {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr day& operator++() noexcept { ++__d; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr day operator++(int) noexcept { day __tmp = *this; ++(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr day& operator--() noexcept { --__d; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr day operator--(int) noexcept { day __tmp = *this; --(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI constexpr day& operator+=(const days& __dd) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr day& operator-=(const days& __dd) noexcept;
- _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator unsigned() const noexcept { return __d; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __d >= 1 && __d <= 31; }
- };
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const day& __lhs, const day& __rhs) noexcept
-{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const day& __lhs, const day& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const day& __lhs, const day& __rhs) noexcept
-{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const day& __lhs, const day& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const day& __lhs, const day& __rhs) noexcept
-{ return !(__rhs < __lhs);}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const day& __lhs, const day& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-day operator+ (const day& __lhs, const days& __rhs) noexcept
-{ return day(static_cast<unsigned>(__lhs) + __rhs.count()); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-day operator+ (const days& __lhs, const day& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-day operator- (const day& __lhs, const days& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-days operator-(const day& __lhs, const day& __rhs) noexcept
-{ return days(static_cast<int>(static_cast<unsigned>(__lhs)) -
- static_cast<int>(static_cast<unsigned>(__rhs))); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-day& day::operator+=(const days& __dd) noexcept
-{ *this = *this + __dd; return *this; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-day& day::operator-=(const days& __dd) noexcept
-{ *this = *this - __dd; return *this; }
-
-
-class month {
-private:
- unsigned char __m;
-public:
- _LIBCPP_HIDE_FROM_ABI month() = default;
- _LIBCPP_HIDE_FROM_ABI explicit inline constexpr month(unsigned __val) noexcept : __m(static_cast<unsigned char>(__val)) {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr month& operator++() noexcept { ++__m; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr month operator++(int) noexcept { month __tmp = *this; ++(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr month& operator--() noexcept { --__m; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr month operator--(int) noexcept { month __tmp = *this; --(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI constexpr month& operator+=(const months& __m1) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr month& operator-=(const months& __m1) noexcept;
- _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator unsigned() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m >= 1 && __m <= 12; }
-};
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const month& __lhs, const month& __rhs) noexcept
-{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const month& __lhs, const month& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const month& __lhs, const month& __rhs) noexcept
-{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const month& __lhs, const month& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const month& __lhs, const month& __rhs) noexcept
-{ return !(__rhs < __lhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const month& __lhs, const month& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month operator+ (const month& __lhs, const months& __rhs) noexcept
-{
- auto const __mu = static_cast<long long>(static_cast<unsigned>(__lhs)) + (__rhs.count() - 1);
- auto const __yr = (__mu >= 0 ? __mu : __mu - 11) / 12;
- return month{static_cast<unsigned>(__mu - __yr * 12 + 1)};
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month operator+ (const months& __lhs, const month& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month operator- (const month& __lhs, const months& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-months operator-(const month& __lhs, const month& __rhs) noexcept
-{
- auto const __dm = static_cast<unsigned>(__lhs) - static_cast<unsigned>(__rhs);
- return months(__dm <= 11 ? __dm : __dm + 12);
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month& month::operator+=(const months& __dm) noexcept
-{ *this = *this + __dm; return *this; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month& month::operator-=(const months& __dm) noexcept
-{ *this = *this - __dm; return *this; }
-
-
-class year {
-private:
- short __y;
-public:
- _LIBCPP_HIDE_FROM_ABI year() = default;
- _LIBCPP_HIDE_FROM_ABI explicit inline constexpr year(int __val) noexcept : __y(static_cast<short>(__val)) {}
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator++() noexcept { ++__y; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator--() noexcept { --__y; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI constexpr year& operator+=(const years& __dy) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year& operator-=(const years& __dy) noexcept;
- _LIBCPP_HIDE_FROM_ABI inline constexpr year operator+() const noexcept { return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year operator-() const noexcept { return year{-__y}; }
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool is_leap() const noexcept { return __y % 4 == 0 && (__y % 100 != 0 || __y % 400 == 0); }
- _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator int() const noexcept { return __y; }
- _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
- _LIBCPP_HIDE_FROM_ABI static inline constexpr year min() noexcept { return year{-32767}; }
- _LIBCPP_HIDE_FROM_ABI static inline constexpr year max() noexcept { return year{ 32767}; }
-};
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const year& __lhs, const year& __rhs) noexcept
-{ return static_cast<int>(__lhs) == static_cast<int>(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const year& __lhs, const year& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const year& __lhs, const year& __rhs) noexcept
-{ return static_cast<int>(__lhs) < static_cast<int>(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const year& __lhs, const year& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const year& __lhs, const year& __rhs) noexcept
-{ return !(__rhs < __lhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const year& __lhs, const year& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year operator+ (const year& __lhs, const years& __rhs) noexcept
-{ return year(static_cast<int>(__lhs) + __rhs.count()); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year operator+ (const years& __lhs, const year& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year operator- (const year& __lhs, const years& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-years operator-(const year& __lhs, const year& __rhs) noexcept
-{ return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year& year::operator+=(const years& __dy) noexcept
-{ *this = *this + __dy; return *this; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year& year::operator-=(const years& __dy) noexcept
-{ *this = *this - __dy; return *this; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool year::ok() const noexcept
-{ return static_cast<int>(min()) <= __y && __y <= static_cast<int>(max()); }
-
-class weekday_indexed;
-class weekday_last;
-
-class weekday {
-private:
- unsigned char __wd;
- _LIBCPP_HIDE_FROM_ABI static constexpr unsigned char __weekday_from_days(int __days) noexcept;
-public:
- _LIBCPP_HIDE_FROM_ABI weekday() = default;
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr weekday(unsigned __val) noexcept : __wd(static_cast<unsigned char>(__val == 7 ? 0 : __val)) {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr weekday(const sys_days& __sysd) noexcept
- : __wd(__weekday_from_days(__sysd.time_since_epoch().count())) {}
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr weekday(const local_days& __locd) noexcept
- : __wd(__weekday_from_days(__locd.time_since_epoch().count())) {}
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr weekday& operator++() noexcept { __wd = (__wd == 6 ? 0 : __wd + 1); return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr weekday operator++(int) noexcept { weekday __tmp = *this; ++(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr weekday& operator--() noexcept { __wd = (__wd == 0 ? 6 : __wd - 1); return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr weekday operator--(int) noexcept { weekday __tmp = *this; --(*this); return __tmp; }
- _LIBCPP_HIDE_FROM_ABI constexpr weekday& operator+=(const days& __dd) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr weekday& operator-=(const days& __dd) noexcept;
- _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned c_encoding() const noexcept { return __wd; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned iso_encoding() const noexcept { return __wd == 0u ? 7 : __wd; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __wd <= 6; }
- _LIBCPP_HIDE_FROM_ABI constexpr weekday_indexed operator[](unsigned __index) const noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr weekday_last operator[](last_spec) const noexcept;
-};
-
-
-// https://howardhinnant.github.io/date_algorithms.html#weekday_from_days
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-unsigned char weekday::__weekday_from_days(int __days) noexcept
-{
- return static_cast<unsigned char>(
- static_cast<unsigned>(__days >= -4 ? (__days+4) % 7 : (__days+5) % 7 + 6)
- );
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const weekday& __lhs, const weekday& __rhs) noexcept
-{ return __lhs.c_encoding() == __rhs.c_encoding(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const weekday& __lhs, const weekday& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const weekday& __lhs, const weekday& __rhs) noexcept
-{ return __lhs.c_encoding() < __rhs.c_encoding(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const weekday& __lhs, const weekday& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const weekday& __lhs, const weekday& __rhs) noexcept
-{ return !(__rhs < __lhs);}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const weekday& __lhs, const weekday& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-weekday operator+(const weekday& __lhs, const days& __rhs) noexcept
-{
- auto const __mu = static_cast<long long>(__lhs.c_encoding()) + __rhs.count();
- auto const __yr = (__mu >= 0 ? __mu : __mu - 6) / 7;
- return weekday{static_cast<unsigned>(__mu - __yr * 7)};
-}
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-weekday operator+(const days& __lhs, const weekday& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-weekday operator-(const weekday& __lhs, const days& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-days operator-(const weekday& __lhs, const weekday& __rhs) noexcept
-{
- const int __wdu = __lhs.c_encoding() - __rhs.c_encoding();
- const int __wk = (__wdu >= 0 ? __wdu : __wdu-6) / 7;
- return days{__wdu - __wk * 7};
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-weekday& weekday::operator+=(const days& __dd) noexcept
-{ *this = *this + __dd; return *this; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-weekday& weekday::operator-=(const days& __dd) noexcept
-{ *this = *this - __dd; return *this; }
-
-
-class weekday_indexed {
-private:
- chrono::weekday __wd;
- unsigned char __idx;
-public:
- _LIBCPP_HIDE_FROM_ABI weekday_indexed() = default;
- _LIBCPP_HIDE_FROM_ABI inline constexpr weekday_indexed(const chrono::weekday& __wdval, unsigned __idxval) noexcept
- : __wd{__wdval}, __idx(__idxval) {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wd; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned index() const noexcept { return __idx; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __wd.ok() && __idx >= 1 && __idx <= 5; }
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept
-{ return __lhs.weekday() == __rhs.weekday() && __lhs.index() == __rhs.index(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-
-class weekday_last {
-private:
- chrono::weekday __wd;
-public:
- _LIBCPP_HIDE_FROM_ABI explicit constexpr weekday_last(const chrono::weekday& __val) noexcept
- : __wd{__val} {}
- _LIBCPP_HIDE_FROM_ABI constexpr chrono::weekday weekday() const noexcept { return __wd; }
- _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept { return __wd.ok(); }
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const weekday_last& __lhs, const weekday_last& __rhs) noexcept
-{ return __lhs.weekday() == __rhs.weekday(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const weekday_last& __lhs, const weekday_last& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-weekday_indexed weekday::operator[](unsigned __index) const noexcept { return weekday_indexed{*this, __index}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-weekday_last weekday::operator[](last_spec) const noexcept { return weekday_last{*this}; }
-
-
inline constexpr last_spec last{};
-inline constexpr weekday Sunday{0};
-inline constexpr weekday Monday{1};
-inline constexpr weekday Tuesday{2};
-inline constexpr weekday Wednesday{3};
-inline constexpr weekday Thursday{4};
-inline constexpr weekday Friday{5};
-inline constexpr weekday Saturday{6};
-
-inline constexpr month January{1};
-inline constexpr month February{2};
-inline constexpr month March{3};
-inline constexpr month April{4};
-inline constexpr month May{5};
-inline constexpr month June{6};
-inline constexpr month July{7};
-inline constexpr month August{8};
-inline constexpr month September{9};
-inline constexpr month October{10};
-inline constexpr month November{11};
-inline constexpr month December{12};
-
-
-class month_day {
-private:
- chrono::month __m;
- chrono::day __d;
-public:
- _LIBCPP_HIDE_FROM_ABI month_day() = default;
- _LIBCPP_HIDE_FROM_ABI constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept
- : __m{__mval}, __d{__dval} {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::day day() const noexcept { return __d; }
- _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool month_day::ok() const noexcept
-{
- if (!__m.ok()) return false;
- const unsigned __dval = static_cast<unsigned>(__d);
- if (__dval < 1 || __dval > 31) return false;
- if (__dval <= 29) return true;
-// Now we've got either 30 or 31
- const unsigned __mval = static_cast<unsigned>(__m);
- if (__mval == 2) return false;
- if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11)
- return __dval == 30;
- return true;
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept
-{ return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const month_day& __lhs, const month_day& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_day operator/(const month& __lhs, const day& __rhs) noexcept
-{ return month_day{__lhs, __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-month_day operator/(const day& __lhs, const month& __rhs) noexcept
-{ return __rhs / __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_day operator/(const month& __lhs, int __rhs) noexcept
-{ return __lhs / day(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-month_day operator/(int __lhs, const day& __rhs) noexcept
-{ return month(__lhs) / __rhs; }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-month_day operator/(const day& __lhs, int __rhs) noexcept
-{ return month(__rhs) / __lhs; }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const month_day& __lhs, const month_day& __rhs) noexcept
-{ return __lhs.month() != __rhs.month() ? __lhs.month() < __rhs.month() : __lhs.day() < __rhs.day(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const month_day& __lhs, const month_day& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const month_day& __lhs, const month_day& __rhs) noexcept
-{ return !(__rhs < __lhs);}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const month_day& __lhs, const month_day& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-
-
-class month_day_last {
-private:
- chrono::month __m;
-public:
- _LIBCPP_HIDE_FROM_ABI explicit constexpr month_day_last(const chrono::month& __val) noexcept
- : __m{__val} {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m.ok(); }
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
-{ return __lhs.month() == __rhs.month(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const month_day_last& __lhs, const month_day_last& __rhs) noexcept
-{ return __lhs.month() < __rhs.month(); }
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const month_day_last& __lhs, const month_day_last& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
-{ return !(__rhs < __lhs);}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_day_last operator/(const month& __lhs, last_spec) noexcept
-{ return month_day_last{__lhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_day_last operator/(last_spec, const month& __rhs) noexcept
-{ return month_day_last{__rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_day_last operator/(int __lhs, last_spec) noexcept
-{ return month_day_last{month(__lhs)}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_day_last operator/(last_spec, int __rhs) noexcept
-{ return month_day_last{month(__rhs)}; }
-
-
-class month_weekday {
-private:
- chrono::month __m;
- chrono::weekday_indexed __wdi;
-public:
- _LIBCPP_HIDE_FROM_ABI constexpr month_weekday(const chrono::month& __mval, const chrono::weekday_indexed& __wdival) noexcept
- : __m{__mval}, __wdi{__wdival} {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m.ok() && __wdi.ok(); }
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const month_weekday& __lhs, const month_weekday& __rhs) noexcept
-{ return __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const month_weekday& __lhs, const month_weekday& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday operator/(const month& __lhs, const weekday_indexed& __rhs) noexcept
-{ return month_weekday{__lhs, __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday operator/(int __lhs, const weekday_indexed& __rhs) noexcept
-{ return month_weekday{month(__lhs), __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday operator/(const weekday_indexed& __lhs, const month& __rhs) noexcept
-{ return month_weekday{__rhs, __lhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday operator/(const weekday_indexed& __lhs, int __rhs) noexcept
-{ return month_weekday{month(__rhs), __lhs}; }
-
-
-class month_weekday_last {
- chrono::month __m;
- chrono::weekday_last __wdl;
- public:
- _LIBCPP_HIDE_FROM_ABI constexpr month_weekday_last(const chrono::month& __mval, const chrono::weekday_last& __wdlval) noexcept
- : __m{__mval}, __wdl{__wdlval} {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m.ok() && __wdl.ok(); }
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept
-{ return __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday_last operator/(const month& __lhs, const weekday_last& __rhs) noexcept
-{ return month_weekday_last{__lhs, __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday_last operator/(int __lhs, const weekday_last& __rhs) noexcept
-{ return month_weekday_last{month(__lhs), __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday_last operator/(const weekday_last& __lhs, const month& __rhs) noexcept
-{ return month_weekday_last{__rhs, __lhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-month_weekday_last operator/(const weekday_last& __lhs, int __rhs) noexcept
-{ return month_weekday_last{month(__rhs), __lhs}; }
-
-
-class year_month {
- chrono::year __y;
- chrono::month __m;
-public:
- _LIBCPP_HIDE_FROM_ABI year_month() = default;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month(const chrono::year& __yval, const chrono::month& __mval) noexcept
- : __y{__yval}, __m{__mval} {}
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator+=(const months& __dm) noexcept { this->__m += __dm; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator-=(const months& __dm) noexcept { this->__m -= __dm; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator+=(const years& __dy) noexcept { this->__y += __dy; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator-=(const years& __dy) noexcept { this->__y -= __dy; return *this; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok(); }
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month operator/(const year& __y, const month& __m) noexcept { return year_month{__y, __m}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month operator/(const year& __y, int __m) noexcept { return year_month{__y, month(__m)}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const year_month& __lhs, const year_month& __rhs) noexcept
-{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const year_month& __lhs, const year_month& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const year_month& __lhs, const year_month& __rhs) noexcept
-{ return __lhs.year() != __rhs.year() ? __lhs.year() < __rhs.year() : __lhs.month() < __rhs.month(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const year_month& __lhs, const year_month& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const year_month& __lhs, const year_month& __rhs) noexcept
-{ return !(__rhs < __lhs);}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const year_month& __lhs, const year_month& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-year_month operator+(const year_month& __lhs, const months& __rhs) noexcept
-{
- int __dmi = static_cast<int>(static_cast<unsigned>(__lhs.month())) - 1 + __rhs.count();
- const int __dy = (__dmi >= 0 ? __dmi : __dmi-11) / 12;
- __dmi = __dmi - __dy * 12 + 1;
- return (__lhs.year() + years(__dy)) / month(static_cast<unsigned>(__dmi));
-}
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-year_month operator+(const months& __lhs, const year_month& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-year_month operator+(const year_month& __lhs, const years& __rhs) noexcept
-{ return (__lhs.year() + __rhs) / __lhs.month(); }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-year_month operator+(const years& __lhs, const year_month& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-months operator-(const year_month& __lhs, const year_month& __rhs) noexcept
-{ return (__lhs.year() - __rhs.year()) + months(static_cast<unsigned>(__lhs.month()) - static_cast<unsigned>(__rhs.month())); }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-year_month operator-(const year_month& __lhs, const months& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-_LIBCPP_HIDE_FROM_ABI constexpr
-year_month operator-(const year_month& __lhs, const years& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-class year_month_day_last;
-
-class year_month_day {
-private:
- chrono::year __y;
- chrono::month __m;
- chrono::day __d;
-public:
- _LIBCPP_HIDE_FROM_ABI year_month_day() = default;
- _LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day(
- const chrono::year& __yval, const chrono::month& __mval, const chrono::day& __dval) noexcept
- : __y{__yval}, __m{__mval}, __d{__dval} {}
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day(const year_month_day_last& __ymdl) noexcept;
- _LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day(const sys_days& __sysd) noexcept
- : year_month_day(__from_days(__sysd.time_since_epoch())) {}
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr year_month_day(const local_days& __locd) noexcept
- : year_month_day(__from_days(__locd.time_since_epoch())) {}
-
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator+=(const months& __dm) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator-=(const months& __dm) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator+=(const years& __dy) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator-=(const years& __dy) noexcept;
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::day day() const noexcept { return __d; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
-
- _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
-
- _LIBCPP_HIDE_FROM_ABI static constexpr year_month_day __from_days(days __d) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
-};
-
-
-// https://howardhinnant.github.io/date_algorithms.html#civil_from_days
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day year_month_day::__from_days(days __d) noexcept
-{
- static_assert(numeric_limits<unsigned>::digits >= 18, "");
- static_assert(numeric_limits<int>::digits >= 20 , "");
- const int __z = __d.count() + 719468;
- const int __era = (__z >= 0 ? __z : __z - 146096) / 146097;
- const unsigned __doe = static_cast<unsigned>(__z - __era * 146097); // [0, 146096]
- const unsigned __yoe = (__doe - __doe/1460 + __doe/36524 - __doe/146096) / 365; // [0, 399]
- const int __yr = static_cast<int>(__yoe) + __era * 400;
- const unsigned __doy = __doe - (365 * __yoe + __yoe/4 - __yoe/100); // [0, 365]
- const unsigned __mp = (5 * __doy + 2)/153; // [0, 11]
- const unsigned __dy = __doy - (153 * __mp + 2)/5 + 1; // [1, 31]
- const unsigned __mth = __mp + (__mp < 10 ? 3 : -9); // [1, 12]
- return year_month_day{chrono::year{__yr + (__mth <= 2)}, chrono::month{__mth}, chrono::day{__dy}};
-}
-
-// https://howardhinnant.github.io/date_algorithms.html#days_from_civil
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-days year_month_day::__to_days() const noexcept
-{
- static_assert(numeric_limits<unsigned>::digits >= 18, "");
- static_assert(numeric_limits<int>::digits >= 20 , "");
-
- const int __yr = static_cast<int>(__y) - (__m <= February);
- const unsigned __mth = static_cast<unsigned>(__m);
- const unsigned __dy = static_cast<unsigned>(__d);
-
- const int __era = (__yr >= 0 ? __yr : __yr - 399) / 400;
- const unsigned __yoe = static_cast<unsigned>(__yr - __era * 400); // [0, 399]
- const unsigned __doy = (153 * (__mth + (__mth > 2 ? -3 : 9)) + 2) / 5 + __dy-1; // [0, 365]
- const unsigned __doe = __yoe * 365 + __yoe/4 - __yoe/100 + __doy; // [0, 146096]
- return days{__era * 146097 + static_cast<int>(__doe) - 719468};
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
-{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const year_month_day& __lhs, const year_month_day& __rhs) noexcept
-{
- if (__lhs.year() < __rhs.year()) return true;
- if (__lhs.year() > __rhs.year()) return false;
- if (__lhs.month() < __rhs.month()) return true;
- if (__lhs.month() > __rhs.month()) return false;
- return __lhs.day() < __rhs.day();
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const year_month_day& __lhs, const year_month_day& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
-{ return !(__rhs < __lhs);}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator/(const year_month& __lhs, const day& __rhs) noexcept
-{ return year_month_day{__lhs.year(), __lhs.month(), __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator/(const year_month& __lhs, int __rhs) noexcept
-{ return __lhs / day(__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator/(const year& __lhs, const month_day& __rhs) noexcept
-{ return __lhs / __rhs.month() / __rhs.day(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator/(int __lhs, const month_day& __rhs) noexcept
-{ return year(__lhs) / __rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator/(const month_day& __lhs, const year& __rhs) noexcept
-{ return __rhs / __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator/(const month_day& __lhs, int __rhs) noexcept
-{ return year(__rhs) / __lhs; }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator+(const year_month_day& __lhs, const months& __rhs) noexcept
-{ return (__lhs.year()/__lhs.month() + __rhs)/__lhs.day(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator+(const months& __lhs, const year_month_day& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator-(const year_month_day& __lhs, const months& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator+(const year_month_day& __lhs, const years& __rhs) noexcept
-{ return (__lhs.year() + __rhs) / __lhs.month() / __lhs.day(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator+(const years& __lhs, const year_month_day& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day operator-(const year_month_day& __lhs, const years& __rhs) noexcept
-{ return __lhs + -__rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
-
-class year_month_day_last {
-private:
- chrono::year __y;
- chrono::month_day_last __mdl;
-public:
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last(const year& __yval, const month_day_last& __mdlval) noexcept
- : __y{__yval}, __mdl{__mdlval} {}
-
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator+=(const months& __m) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator-=(const months& __m) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator+=(const years& __y) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator-=(const years& __y) noexcept;
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __mdl.month(); }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month_day_last month_day_last() const noexcept { return __mdl; }
- _LIBCPP_HIDE_FROM_ABI constexpr chrono::day day() const noexcept;
- _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{year()/month()/day()}; }
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{year()/month()/day()}; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __mdl.ok(); }
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-chrono::day year_month_day_last::day() const noexcept
-{
- constexpr chrono::day __d[] =
- {
- chrono::day(31), chrono::day(28), chrono::day(31),
- chrono::day(30), chrono::day(31), chrono::day(30),
- chrono::day(31), chrono::day(31), chrono::day(30),
- chrono::day(31), chrono::day(30), chrono::day(31)
- };
- return (month() != February || !__y.is_leap()) && month().ok() ?
- __d[static_cast<unsigned>(month()) - 1] : chrono::day{29};
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
-{ return __lhs.year() == __rhs.year() && __lhs.month_day_last() == __rhs.month_day_last(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator< (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
-{
- if (__lhs.year() < __rhs.year()) return true;
- if (__lhs.year() > __rhs.year()) return false;
- return __lhs.month_day_last() < __rhs.month_day_last();
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator> (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
-{ return __rhs < __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator<=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
-{ return !(__rhs < __lhs);}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator>=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
-{ return !(__lhs < __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator/(const year_month& __lhs, last_spec) noexcept
-{ return year_month_day_last{__lhs.year(), month_day_last{__lhs.month()}}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator/(const year& __lhs, const month_day_last& __rhs) noexcept
-{ return year_month_day_last{__lhs, __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator/(int __lhs, const month_day_last& __rhs) noexcept
-{ return year_month_day_last{year{__lhs}, __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last
-operator/(const month_day_last& __lhs, const year& __rhs) noexcept
-{ return __rhs / __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator/(const month_day_last& __lhs, int __rhs) noexcept
-{ return year{__rhs} / __lhs; }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator+(const year_month_day_last& __lhs, const months& __rhs) noexcept
-{ return (__lhs.year() / __lhs.month() + __rhs) / last; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator+(const months& __lhs, const year_month_day_last& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator-(const year_month_day_last& __lhs, const months& __rhs) noexcept
-{ return __lhs + (-__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator+(const year_month_day_last& __lhs, const years& __rhs) noexcept
-{ return year_month_day_last{__lhs.year() + __rhs, __lhs.month_day_last()}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator+(const years& __lhs, const year_month_day_last& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day_last operator-(const year_month_day_last& __lhs, const years& __rhs) noexcept
-{ return __lhs + (-__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_day::year_month_day(const year_month_day_last& __ymdl) noexcept
- : __y{__ymdl.year()}, __m{__ymdl.month()}, __d{__ymdl.day()} {}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool year_month_day::ok() const noexcept
-{
- if (!__y.ok() || !__m.ok()) return false;
- return chrono::day{1} <= __d && __d <= (__y / __m / last).day();
-}
-
-class year_month_weekday {
- chrono::year __y;
- chrono::month __m;
- chrono::weekday_indexed __wdi;
-public:
- _LIBCPP_HIDE_FROM_ABI year_month_weekday() = default;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(const chrono::year& __yval, const chrono::month& __mval,
- const chrono::weekday_indexed& __wdival) noexcept
- : __y{__yval}, __m{__mval}, __wdi{__wdival} {}
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(const sys_days& __sysd) noexcept
- : year_month_weekday(__from_days(__sysd.time_since_epoch())) {}
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr year_month_weekday(const local_days& __locd) noexcept
- : year_month_weekday(__from_days(__locd.time_since_epoch())) {}
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const months& m) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const months& m) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const years& y) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const years& y) noexcept;
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdi.weekday(); }
- _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned index() const noexcept { return __wdi.index(); }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; }
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept
- {
- if (!__y.ok() || !__m.ok() || !__wdi.ok()) return false;
- if (__wdi.index() <= 4) return true;
- auto __nth_weekday_day =
- __wdi.weekday() -
- chrono::weekday{static_cast<sys_days>(__y / __m / 1)} +
- days{(__wdi.index() - 1) * 7 + 1};
- return static_cast<unsigned>(__nth_weekday_day.count()) <=
- static_cast<unsigned>((__y / __m / last).day());
- }
-
- _LIBCPP_HIDE_FROM_ABI static constexpr year_month_weekday __from_days(days __d) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday year_month_weekday::__from_days(days __d) noexcept
-{
- const sys_days __sysd{__d};
- const chrono::weekday __wd = chrono::weekday(__sysd);
- const year_month_day __ymd = year_month_day(__sysd);
- return year_month_weekday{__ymd.year(), __ymd.month(),
- __wd[(static_cast<unsigned>(__ymd.day())-1)/7+1]};
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-days year_month_weekday::__to_days() const noexcept
-{
- const sys_days __sysd = sys_days(__y/__m/1);
- return (__sysd + (__wdi.weekday() - chrono::weekday(__sysd) + days{(__wdi.index()-1)*7}))
- .time_since_epoch();
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept
-{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator/(const year_month& __lhs, const weekday_indexed& __rhs) noexcept
-{ return year_month_weekday{__lhs.year(), __lhs.month(), __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator/(const year& __lhs, const month_weekday& __rhs) noexcept
-{ return year_month_weekday{__lhs, __rhs.month(), __rhs.weekday_indexed()}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator/(int __lhs, const month_weekday& __rhs) noexcept
-{ return year(__lhs) / __rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator/(const month_weekday& __lhs, const year& __rhs) noexcept
-{ return __rhs / __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator/(const month_weekday& __lhs, int __rhs) noexcept
-{ return year(__rhs) / __lhs; }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator+(const year_month_weekday& __lhs, const months& __rhs) noexcept
-{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_indexed(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator+(const months& __lhs, const year_month_weekday& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator-(const year_month_weekday& __lhs, const months& __rhs) noexcept
-{ return __lhs + (-__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator+(const year_month_weekday& __lhs, const years& __rhs) noexcept
-{ return year_month_weekday{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_indexed()}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator+(const years& __lhs, const year_month_weekday& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday operator-(const year_month_weekday& __lhs, const years& __rhs) noexcept
-{ return __lhs + (-__rhs); }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
-
-class year_month_weekday_last {
-private:
- chrono::year __y;
- chrono::month __m;
- chrono::weekday_last __wdl;
-public:
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last(const chrono::year& __yval, const chrono::month& __mval,
- const chrono::weekday_last& __wdlval) noexcept
- : __y{__yval}, __m{__mval}, __wdl{__wdlval} {}
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const months& __dm) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const months& __dm) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const years& __dy) noexcept;
- _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const years& __dy) noexcept;
-
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdl.weekday(); }
- _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
- _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
- _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok() && __wdl.ok(); }
-
- _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
-
-};
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-days year_month_weekday_last::__to_days() const noexcept
-{
- const sys_days __last = sys_days{__y/__m/last};
- return (__last - (chrono::weekday{__last} - __wdl.weekday())).time_since_epoch();
-
-}
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator==(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept
-{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-bool operator!=(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept
-{ return !(__lhs == __rhs); }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator/(const year_month& __lhs, const weekday_last& __rhs) noexcept
-{ return year_month_weekday_last{__lhs.year(), __lhs.month(), __rhs}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator/(const year& __lhs, const month_weekday_last& __rhs) noexcept
-{ return year_month_weekday_last{__lhs, __rhs.month(), __rhs.weekday_last()}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator/(int __lhs, const month_weekday_last& __rhs) noexcept
-{ return year(__lhs) / __rhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator/(const month_weekday_last& __lhs, const year& __rhs) noexcept
-{ return __rhs / __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator/(const month_weekday_last& __lhs, int __rhs) noexcept
-{ return year(__rhs) / __lhs; }
-
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const months& __rhs) noexcept
-{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_last(); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator+(const months& __lhs, const year_month_weekday_last& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const months& __rhs) noexcept
-{ return __lhs + (-__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const years& __rhs) noexcept
-{ return year_month_weekday_last{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_last()}; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator+(const years& __lhs, const year_month_weekday_last& __rhs) noexcept
-{ return __rhs + __lhs; }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr
-year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const years& __rhs) noexcept
-{ return __lhs + (-__rhs); }
-
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
-_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
-
-
-template <class _Duration>
-class hh_mm_ss
-{
-private:
- static_assert(__is_duration<_Duration>::value, "template parameter of hh_mm_ss must be a std::chrono::duration");
- using __CommonType = common_type_t<_Duration, chrono::seconds>;
-
- _LIBCPP_HIDE_FROM_ABI static constexpr uint64_t __pow10(unsigned __exp)
- {
- uint64_t __ret = 1;
- for (unsigned __i = 0; __i < __exp; ++__i)
- __ret *= 10U;
- return __ret;
- }
-
- _LIBCPP_HIDE_FROM_ABI static constexpr unsigned __width(uint64_t __n, uint64_t __d = 10, unsigned __w = 0)
- {
- if (__n >= 2 && __d != 0 && __w < 19)
- return 1 + __width(__n, __d % __n * 10, __w+1);
- return 0;
- }
-
-public:
- _LIBCPP_HIDE_FROM_ABI static unsigned constexpr fractional_width = __width(__CommonType::period::den) < 19 ?
- __width(__CommonType::period::den) : 6u;
- using precision = duration<typename __CommonType::rep, ratio<1, __pow10(fractional_width)>>;
-
- _LIBCPP_HIDE_FROM_ABI constexpr hh_mm_ss() noexcept : hh_mm_ss{_Duration::zero()} {}
-
- _LIBCPP_HIDE_FROM_ABI constexpr explicit hh_mm_ss(_Duration __d) noexcept :
- __is_neg(__d < _Duration(0)),
- __h(duration_cast<chrono::hours> (abs(__d))),
- __m(duration_cast<chrono::minutes>(abs(__d) - hours())),
- __s(duration_cast<chrono::seconds>(abs(__d) - hours() - minutes())),
- __f(duration_cast<precision> (abs(__d) - hours() - minutes() - seconds()))
- {}
-
- _LIBCPP_HIDE_FROM_ABI constexpr bool is_negative() const noexcept { return __is_neg; }
- _LIBCPP_HIDE_FROM_ABI constexpr chrono::hours hours() const noexcept { return __h; }
- _LIBCPP_HIDE_FROM_ABI constexpr chrono::minutes minutes() const noexcept { return __m; }
- _LIBCPP_HIDE_FROM_ABI constexpr chrono::seconds seconds() const noexcept { return __s; }
- _LIBCPP_HIDE_FROM_ABI constexpr precision subseconds() const noexcept { return __f; }
-
- _LIBCPP_HIDE_FROM_ABI constexpr precision to_duration() const noexcept
- {
- auto __dur = __h + __m + __s + __f;
- return __is_neg ? -__dur : __dur;
- }
-
- _LIBCPP_HIDE_FROM_ABI constexpr explicit operator precision() const noexcept { return to_duration(); }
-
-private:
- bool __is_neg;
- chrono::hours __h;
- chrono::minutes __m;
- chrono::seconds __s;
- precision __f;
-};
-
-_LIBCPP_HIDE_FROM_ABI constexpr bool is_am(const hours& __h) noexcept { return __h >= hours( 0) && __h < hours(12); }
-_LIBCPP_HIDE_FROM_ABI constexpr bool is_pm(const hours& __h) noexcept { return __h >= hours(12) && __h < hours(24); }
-
-_LIBCPP_HIDE_FROM_ABI constexpr hours make12(const hours& __h) noexcept
-{
- if (__h == hours( 0)) return hours(12);
- else if (__h <= hours(12)) return __h;
- else return __h - hours(12);
-}
-
-_LIBCPP_HIDE_FROM_ABI constexpr hours make24(const hours& __h, bool __is_pm) noexcept
-{
- if (__is_pm)
- return __h == hours(12) ? __h : __h + hours(12);
- else
- return __h == hours(12) ? hours(0) : __h;
-}
-
-} // namespace chrono
-
-inline namespace literals
-{
- inline namespace chrono_literals
- {
- _LIBCPP_HIDE_FROM_ABI constexpr chrono::day operator ""d(unsigned long long __d) noexcept
- {
- return chrono::day(static_cast<unsigned>(__d));
- }
-
- _LIBCPP_HIDE_FROM_ABI constexpr chrono::year operator ""y(unsigned long long __y) noexcept
- {
- return chrono::year(static_cast<int>(__y));
- }
-} // namespace chrono_literals
-} // namespace literals
-
-namespace chrono { // hoist the literals into namespace std::chrono
- using namespace literals::chrono_literals;
} // namespace chrono
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STD_VER > 17
-_LIBCPP_POP_MACROS
-
#endif // _LIBCPP___CHRONO_CALENDAR_H
diff --git a/libcxx/include/__chrono/day.h b/libcxx/include/__chrono/day.h
new file mode 100644
index 0000000000000..7e425558e359f
--- /dev/null
+++ b/libcxx/include/__chrono/day.h
@@ -0,0 +1,99 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_DAY_H
+#define _LIBCPP___CHRONO_DAY_H
+
+#include <__chrono/duration.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class day {
+private:
+ unsigned char __d;
+public:
+ _LIBCPP_HIDE_FROM_ABI day() = default;
+ _LIBCPP_HIDE_FROM_ABI explicit inline constexpr day(unsigned __val) noexcept : __d(static_cast<unsigned char>(__val)) {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr day& operator++() noexcept { ++__d; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr day operator++(int) noexcept { day __tmp = *this; ++(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr day& operator--() noexcept { --__d; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr day operator--(int) noexcept { day __tmp = *this; --(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI constexpr day& operator+=(const days& __dd) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr day& operator-=(const days& __dd) noexcept;
+ _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator unsigned() const noexcept { return __d; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __d >= 1 && __d <= 31; }
+ };
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const day& __lhs, const day& __rhs) noexcept
+{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const day& __lhs, const day& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const day& __lhs, const day& __rhs) noexcept
+{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const day& __lhs, const day& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const day& __lhs, const day& __rhs) noexcept
+{ return !(__rhs < __lhs);}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const day& __lhs, const day& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+day operator+ (const day& __lhs, const days& __rhs) noexcept
+{ return day(static_cast<unsigned>(__lhs) + __rhs.count()); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+day operator+ (const days& __lhs, const day& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+day operator- (const day& __lhs, const days& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+days operator-(const day& __lhs, const day& __rhs) noexcept
+{ return days(static_cast<int>(static_cast<unsigned>(__lhs)) -
+ static_cast<int>(static_cast<unsigned>(__rhs))); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+day& day::operator+=(const days& __dd) noexcept
+{ *this = *this + __dd; return *this; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+day& day::operator-=(const days& __dd) noexcept
+{ *this = *this - __dd; return *this; }
+
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_DAY_H
diff --git a/libcxx/include/__chrono/hh_mm_ss.h b/libcxx/include/__chrono/hh_mm_ss.h
new file mode 100644
index 0000000000000..6b3c5c09e68e1
--- /dev/null
+++ b/libcxx/include/__chrono/hh_mm_ss.h
@@ -0,0 +1,112 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_HH_MM_SS_H
+#define _LIBCPP___CHRONO_HH_MM_SS_H
+
+#include <__chrono/duration.h>
+#include <__chrono/time_point.h>
+#include <__config>
+#include <ratio>
+#include <type_traits>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+template <class _Duration>
+class hh_mm_ss
+{
+private:
+ static_assert(__is_duration<_Duration>::value, "template parameter of hh_mm_ss must be a std::chrono::duration");
+ using __CommonType = common_type_t<_Duration, chrono::seconds>;
+
+ _LIBCPP_HIDE_FROM_ABI static constexpr uint64_t __pow10(unsigned __exp)
+ {
+ uint64_t __ret = 1;
+ for (unsigned __i = 0; __i < __exp; ++__i)
+ __ret *= 10U;
+ return __ret;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI static constexpr unsigned __width(uint64_t __n, uint64_t __d = 10, unsigned __w = 0)
+ {
+ if (__n >= 2 && __d != 0 && __w < 19)
+ return 1 + __width(__n, __d % __n * 10, __w+1);
+ return 0;
+ }
+
+public:
+ _LIBCPP_HIDE_FROM_ABI static unsigned constexpr fractional_width = __width(__CommonType::period::den) < 19 ?
+ __width(__CommonType::period::den) : 6u;
+ using precision = duration<typename __CommonType::rep, ratio<1, __pow10(fractional_width)>>;
+
+ _LIBCPP_HIDE_FROM_ABI constexpr hh_mm_ss() noexcept : hh_mm_ss{_Duration::zero()} {}
+
+ _LIBCPP_HIDE_FROM_ABI constexpr explicit hh_mm_ss(_Duration __d) noexcept :
+ __is_neg(__d < _Duration(0)),
+ __h(duration_cast<chrono::hours> (abs(__d))),
+ __m(duration_cast<chrono::minutes>(abs(__d) - hours())),
+ __s(duration_cast<chrono::seconds>(abs(__d) - hours() - minutes())),
+ __f(duration_cast<precision> (abs(__d) - hours() - minutes() - seconds()))
+ {}
+
+ _LIBCPP_HIDE_FROM_ABI constexpr bool is_negative() const noexcept { return __is_neg; }
+ _LIBCPP_HIDE_FROM_ABI constexpr chrono::hours hours() const noexcept { return __h; }
+ _LIBCPP_HIDE_FROM_ABI constexpr chrono::minutes minutes() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI constexpr chrono::seconds seconds() const noexcept { return __s; }
+ _LIBCPP_HIDE_FROM_ABI constexpr precision subseconds() const noexcept { return __f; }
+
+ _LIBCPP_HIDE_FROM_ABI constexpr precision to_duration() const noexcept
+ {
+ auto __dur = __h + __m + __s + __f;
+ return __is_neg ? -__dur : __dur;
+ }
+
+ _LIBCPP_HIDE_FROM_ABI constexpr explicit operator precision() const noexcept { return to_duration(); }
+
+private:
+ bool __is_neg;
+ chrono::hours __h;
+ chrono::minutes __m;
+ chrono::seconds __s;
+ precision __f;
+};
+
+_LIBCPP_HIDE_FROM_ABI constexpr bool is_am(const hours& __h) noexcept { return __h >= hours( 0) && __h < hours(12); }
+_LIBCPP_HIDE_FROM_ABI constexpr bool is_pm(const hours& __h) noexcept { return __h >= hours(12) && __h < hours(24); }
+
+_LIBCPP_HIDE_FROM_ABI constexpr hours make12(const hours& __h) noexcept
+{
+ if (__h == hours( 0)) return hours(12);
+ else if (__h <= hours(12)) return __h;
+ else return __h - hours(12);
+}
+
+_LIBCPP_HIDE_FROM_ABI constexpr hours make24(const hours& __h, bool __is_pm) noexcept
+{
+ if (__is_pm)
+ return __h == hours(12) ? __h : __h + hours(12);
+ else
+ return __h == hours(12) ? hours(0) : __h;
+}
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_HH_MM_SS_H
diff --git a/libcxx/include/__chrono/literals.h b/libcxx/include/__chrono/literals.h
new file mode 100644
index 0000000000000..50529bd44ad1f
--- /dev/null
+++ b/libcxx/include/__chrono/literals.h
@@ -0,0 +1,49 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_LITERALS_H
+#define _LIBCPP___CHRONO_LITERALS_H
+
+#include <__chrono/day.h>
+#include <__chrono/year.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+inline namespace literals
+{
+ inline namespace chrono_literals
+ {
+ _LIBCPP_HIDE_FROM_ABI constexpr chrono::day operator ""d(unsigned long long __d) noexcept
+ {
+ return chrono::day(static_cast<unsigned>(__d));
+ }
+
+ _LIBCPP_HIDE_FROM_ABI constexpr chrono::year operator ""y(unsigned long long __y) noexcept
+ {
+ return chrono::year(static_cast<int>(__y));
+ }
+} // namespace chrono_literals
+} // namespace literals
+
+namespace chrono { // hoist the literals into namespace std::chrono
+ using namespace literals::chrono_literals;
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_LITERALS_H
diff --git a/libcxx/include/__chrono/month.h b/libcxx/include/__chrono/month.h
new file mode 100644
index 0000000000000..5aeb5b3971824
--- /dev/null
+++ b/libcxx/include/__chrono/month.h
@@ -0,0 +1,118 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_MONTH_H
+#define _LIBCPP___CHRONO_MONTH_H
+
+#include <__chrono/duration.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class month {
+private:
+ unsigned char __m;
+public:
+ _LIBCPP_HIDE_FROM_ABI month() = default;
+ _LIBCPP_HIDE_FROM_ABI explicit inline constexpr month(unsigned __val) noexcept : __m(static_cast<unsigned char>(__val)) {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr month& operator++() noexcept { ++__m; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr month operator++(int) noexcept { month __tmp = *this; ++(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr month& operator--() noexcept { --__m; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr month operator--(int) noexcept { month __tmp = *this; --(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI constexpr month& operator+=(const months& __m1) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr month& operator-=(const months& __m1) noexcept;
+ _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator unsigned() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m >= 1 && __m <= 12; }
+};
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const month& __lhs, const month& __rhs) noexcept
+{ return static_cast<unsigned>(__lhs) == static_cast<unsigned>(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const month& __lhs, const month& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const month& __lhs, const month& __rhs) noexcept
+{ return static_cast<unsigned>(__lhs) < static_cast<unsigned>(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const month& __lhs, const month& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const month& __lhs, const month& __rhs) noexcept
+{ return !(__rhs < __lhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const month& __lhs, const month& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month operator+ (const month& __lhs, const months& __rhs) noexcept
+{
+ auto const __mu = static_cast<long long>(static_cast<unsigned>(__lhs)) + (__rhs.count() - 1);
+ auto const __yr = (__mu >= 0 ? __mu : __mu - 11) / 12;
+ return month{static_cast<unsigned>(__mu - __yr * 12 + 1)};
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month operator+ (const months& __lhs, const month& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month operator- (const month& __lhs, const months& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+months operator-(const month& __lhs, const month& __rhs) noexcept
+{
+ auto const __dm = static_cast<unsigned>(__lhs) - static_cast<unsigned>(__rhs);
+ return months(__dm <= 11 ? __dm : __dm + 12);
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month& month::operator+=(const months& __dm) noexcept
+{ *this = *this + __dm; return *this; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month& month::operator-=(const months& __dm) noexcept
+{ *this = *this - __dm; return *this; }
+
+inline constexpr month January{1};
+inline constexpr month February{2};
+inline constexpr month March{3};
+inline constexpr month April{4};
+inline constexpr month May{5};
+inline constexpr month June{6};
+inline constexpr month July{7};
+inline constexpr month August{8};
+inline constexpr month September{9};
+inline constexpr month October{10};
+inline constexpr month November{11};
+inline constexpr month December{12};
+
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_MONTH_H
diff --git a/libcxx/include/__chrono/month_weekday.h b/libcxx/include/__chrono/month_weekday.h
new file mode 100644
index 0000000000000..2700513970173
--- /dev/null
+++ b/libcxx/include/__chrono/month_weekday.h
@@ -0,0 +1,106 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_MONTH_WEEKDAY_H
+#define _LIBCPP___CHRONO_MONTH_WEEKDAY_H
+
+#include <__chrono/month.h>
+#include <__chrono/weekday.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class month_weekday {
+private:
+ chrono::month __m;
+ chrono::weekday_indexed __wdi;
+public:
+ _LIBCPP_HIDE_FROM_ABI constexpr month_weekday(const chrono::month& __mval, const chrono::weekday_indexed& __wdival) noexcept
+ : __m{__mval}, __wdi{__wdival} {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m.ok() && __wdi.ok(); }
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const month_weekday& __lhs, const month_weekday& __rhs) noexcept
+{ return __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const month_weekday& __lhs, const month_weekday& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday operator/(const month& __lhs, const weekday_indexed& __rhs) noexcept
+{ return month_weekday{__lhs, __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday operator/(int __lhs, const weekday_indexed& __rhs) noexcept
+{ return month_weekday{month(__lhs), __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday operator/(const weekday_indexed& __lhs, const month& __rhs) noexcept
+{ return month_weekday{__rhs, __lhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday operator/(const weekday_indexed& __lhs, int __rhs) noexcept
+{ return month_weekday{month(__rhs), __lhs}; }
+
+
+class month_weekday_last {
+ chrono::month __m;
+ chrono::weekday_last __wdl;
+ public:
+ _LIBCPP_HIDE_FROM_ABI constexpr month_weekday_last(const chrono::month& __mval, const chrono::weekday_last& __wdlval) noexcept
+ : __m{__mval}, __wdl{__wdlval} {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m.ok() && __wdl.ok(); }
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept
+{ return __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const month_weekday_last& __lhs, const month_weekday_last& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday_last operator/(const month& __lhs, const weekday_last& __rhs) noexcept
+{ return month_weekday_last{__lhs, __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday_last operator/(int __lhs, const weekday_last& __rhs) noexcept
+{ return month_weekday_last{month(__lhs), __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday_last operator/(const weekday_last& __lhs, const month& __rhs) noexcept
+{ return month_weekday_last{__rhs, __lhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_weekday_last operator/(const weekday_last& __lhs, int __rhs) noexcept
+{ return month_weekday_last{month(__rhs), __lhs}; }
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_MONTH_WEEKDAY_H
diff --git a/libcxx/include/__chrono/monthday.h b/libcxx/include/__chrono/monthday.h
new file mode 100644
index 0000000000000..485f0d4299b55
--- /dev/null
+++ b/libcxx/include/__chrono/monthday.h
@@ -0,0 +1,160 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_MONTHDAY_H
+#define _LIBCPP___CHRONO_MONTHDAY_H
+
+#include <__chrono/calendar.h>
+#include <__chrono/day.h>
+#include <__chrono/month.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class month_day {
+private:
+ chrono::month __m;
+ chrono::day __d;
+public:
+ _LIBCPP_HIDE_FROM_ABI month_day() = default;
+ _LIBCPP_HIDE_FROM_ABI constexpr month_day(const chrono::month& __mval, const chrono::day& __dval) noexcept
+ : __m{__mval}, __d{__dval} {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::day day() const noexcept { return __d; }
+ _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool month_day::ok() const noexcept
+{
+ if (!__m.ok()) return false;
+ const unsigned __dval = static_cast<unsigned>(__d);
+ if (__dval < 1 || __dval > 31) return false;
+ if (__dval <= 29) return true;
+// Now we've got either 30 or 31
+ const unsigned __mval = static_cast<unsigned>(__m);
+ if (__mval == 2) return false;
+ if (__mval == 4 || __mval == 6 || __mval == 9 || __mval == 11)
+ return __dval == 30;
+ return true;
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const month_day& __lhs, const month_day& __rhs) noexcept
+{ return __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const month_day& __lhs, const month_day& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_day operator/(const month& __lhs, const day& __rhs) noexcept
+{ return month_day{__lhs, __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+month_day operator/(const day& __lhs, const month& __rhs) noexcept
+{ return __rhs / __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_day operator/(const month& __lhs, int __rhs) noexcept
+{ return __lhs / day(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+month_day operator/(int __lhs, const day& __rhs) noexcept
+{ return month(__lhs) / __rhs; }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+month_day operator/(const day& __lhs, int __rhs) noexcept
+{ return month(__rhs) / __lhs; }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const month_day& __lhs, const month_day& __rhs) noexcept
+{ return __lhs.month() != __rhs.month() ? __lhs.month() < __rhs.month() : __lhs.day() < __rhs.day(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const month_day& __lhs, const month_day& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const month_day& __lhs, const month_day& __rhs) noexcept
+{ return !(__rhs < __lhs);}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const month_day& __lhs, const month_day& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+
+
+class month_day_last {
+private:
+ chrono::month __m;
+public:
+ _LIBCPP_HIDE_FROM_ABI explicit constexpr month_day_last(const chrono::month& __val) noexcept
+ : __m{__val} {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __m.ok(); }
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
+{ return __lhs.month() == __rhs.month(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const month_day_last& __lhs, const month_day_last& __rhs) noexcept
+{ return __lhs.month() < __rhs.month(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const month_day_last& __lhs, const month_day_last& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
+{ return !(__rhs < __lhs);}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const month_day_last& __lhs, const month_day_last& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_day_last operator/(const month& __lhs, last_spec) noexcept
+{ return month_day_last{__lhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_day_last operator/(last_spec, const month& __rhs) noexcept
+{ return month_day_last{__rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_day_last operator/(int __lhs, last_spec) noexcept
+{ return month_day_last{month(__lhs)}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+month_day_last operator/(last_spec, int __rhs) noexcept
+{ return month_day_last{month(__rhs)}; }
+
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_MONTHDAY_H
diff --git a/libcxx/include/__chrono/weekday.h b/libcxx/include/__chrono/weekday.h
new file mode 100644
index 0000000000000..bad6781110f1c
--- /dev/null
+++ b/libcxx/include/__chrono/weekday.h
@@ -0,0 +1,185 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_WEEKDAY_H
+#define _LIBCPP___CHRONO_WEEKDAY_H
+
+#include <__chrono/calendar.h>
+#include <__chrono/duration.h>
+#include <__chrono/system_clock.h>
+#include <__chrono/time_point.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class weekday_indexed;
+class weekday_last;
+
+class weekday {
+private:
+ unsigned char __wd;
+ _LIBCPP_HIDE_FROM_ABI static constexpr unsigned char __weekday_from_days(int __days) noexcept;
+public:
+ _LIBCPP_HIDE_FROM_ABI weekday() = default;
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr weekday(unsigned __val) noexcept : __wd(static_cast<unsigned char>(__val == 7 ? 0 : __val)) {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr weekday(const sys_days& __sysd) noexcept
+ : __wd(__weekday_from_days(__sysd.time_since_epoch().count())) {}
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr weekday(const local_days& __locd) noexcept
+ : __wd(__weekday_from_days(__locd.time_since_epoch().count())) {}
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr weekday& operator++() noexcept { __wd = (__wd == 6 ? 0 : __wd + 1); return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr weekday operator++(int) noexcept { weekday __tmp = *this; ++(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr weekday& operator--() noexcept { __wd = (__wd == 0 ? 6 : __wd - 1); return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr weekday operator--(int) noexcept { weekday __tmp = *this; --(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI constexpr weekday& operator+=(const days& __dd) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr weekday& operator-=(const days& __dd) noexcept;
+ _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned c_encoding() const noexcept { return __wd; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned iso_encoding() const noexcept { return __wd == 0u ? 7 : __wd; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __wd <= 6; }
+ _LIBCPP_HIDE_FROM_ABI constexpr weekday_indexed operator[](unsigned __index) const noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr weekday_last operator[](last_spec) const noexcept;
+};
+
+
+// https://howardhinnant.github.io/date_algorithms.html#weekday_from_days
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+unsigned char weekday::__weekday_from_days(int __days) noexcept
+{
+ return static_cast<unsigned char>(
+ static_cast<unsigned>(__days >= -4 ? (__days+4) % 7 : (__days+5) % 7 + 6)
+ );
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const weekday& __lhs, const weekday& __rhs) noexcept
+{ return __lhs.c_encoding() == __rhs.c_encoding(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const weekday& __lhs, const weekday& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const weekday& __lhs, const weekday& __rhs) noexcept
+{ return __lhs.c_encoding() < __rhs.c_encoding(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const weekday& __lhs, const weekday& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const weekday& __lhs, const weekday& __rhs) noexcept
+{ return !(__rhs < __lhs);}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const weekday& __lhs, const weekday& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+weekday operator+(const weekday& __lhs, const days& __rhs) noexcept
+{
+ auto const __mu = static_cast<long long>(__lhs.c_encoding()) + __rhs.count();
+ auto const __yr = (__mu >= 0 ? __mu : __mu - 6) / 7;
+ return weekday{static_cast<unsigned>(__mu - __yr * 7)};
+}
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+weekday operator+(const days& __lhs, const weekday& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+weekday operator-(const weekday& __lhs, const days& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+days operator-(const weekday& __lhs, const weekday& __rhs) noexcept
+{
+ const int __wdu = __lhs.c_encoding() - __rhs.c_encoding();
+ const int __wk = (__wdu >= 0 ? __wdu : __wdu-6) / 7;
+ return days{__wdu - __wk * 7};
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+weekday& weekday::operator+=(const days& __dd) noexcept
+{ *this = *this + __dd; return *this; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+weekday& weekday::operator-=(const days& __dd) noexcept
+{ *this = *this - __dd; return *this; }
+
+class weekday_indexed {
+private:
+ chrono::weekday __wd;
+ unsigned char __idx;
+public:
+ _LIBCPP_HIDE_FROM_ABI weekday_indexed() = default;
+ _LIBCPP_HIDE_FROM_ABI inline constexpr weekday_indexed(const chrono::weekday& __wdval, unsigned __idxval) noexcept
+ : __wd{__wdval}, __idx(__idxval) {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wd; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned index() const noexcept { return __idx; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __wd.ok() && __idx >= 1 && __idx <= 5; }
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept
+{ return __lhs.weekday() == __rhs.weekday() && __lhs.index() == __rhs.index(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const weekday_indexed& __lhs, const weekday_indexed& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+
+class weekday_last {
+private:
+ chrono::weekday __wd;
+public:
+ _LIBCPP_HIDE_FROM_ABI explicit constexpr weekday_last(const chrono::weekday& __val) noexcept
+ : __wd{__val} {}
+ _LIBCPP_HIDE_FROM_ABI constexpr chrono::weekday weekday() const noexcept { return __wd; }
+ _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept { return __wd.ok(); }
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const weekday_last& __lhs, const weekday_last& __rhs) noexcept
+{ return __lhs.weekday() == __rhs.weekday(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const weekday_last& __lhs, const weekday_last& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+weekday_indexed weekday::operator[](unsigned __index) const noexcept { return weekday_indexed{*this, __index}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+weekday_last weekday::operator[](last_spec) const noexcept { return weekday_last{*this}; }
+
+
+inline constexpr weekday Sunday{0};
+inline constexpr weekday Monday{1};
+inline constexpr weekday Tuesday{2};
+inline constexpr weekday Wednesday{3};
+inline constexpr weekday Thursday{4};
+inline constexpr weekday Friday{5};
+inline constexpr weekday Saturday{6};
+
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_WEEKDAY_H
diff --git a/libcxx/include/__chrono/year.h b/libcxx/include/__chrono/year.h
new file mode 100644
index 0000000000000..a641fe1c93b0a
--- /dev/null
+++ b/libcxx/include/__chrono/year.h
@@ -0,0 +1,114 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_YEAR_H
+#define _LIBCPP___CHRONO_YEAR_H
+
+#include <__chrono/duration.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class year {
+private:
+ short __y;
+public:
+ _LIBCPP_HIDE_FROM_ABI year() = default;
+ _LIBCPP_HIDE_FROM_ABI explicit inline constexpr year(int __val) noexcept : __y(static_cast<short>(__val)) {}
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator++() noexcept { ++__y; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year operator++(int) noexcept { year __tmp = *this; ++(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year& operator--() noexcept { --__y; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year operator--(int) noexcept { year __tmp = *this; --(*this); return __tmp; }
+ _LIBCPP_HIDE_FROM_ABI constexpr year& operator+=(const years& __dy) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year& operator-=(const years& __dy) noexcept;
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year operator+() const noexcept { return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year operator-() const noexcept { return year{-__y}; }
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool is_leap() const noexcept { return __y % 4 == 0 && (__y % 100 != 0 || __y % 400 == 0); }
+ _LIBCPP_HIDE_FROM_ABI explicit inline constexpr operator int() const noexcept { return __y; }
+ _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
+ _LIBCPP_HIDE_FROM_ABI static inline constexpr year min() noexcept { return year{-32767}; }
+ _LIBCPP_HIDE_FROM_ABI static inline constexpr year max() noexcept { return year{ 32767}; }
+};
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const year& __lhs, const year& __rhs) noexcept
+{ return static_cast<int>(__lhs) == static_cast<int>(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const year& __lhs, const year& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const year& __lhs, const year& __rhs) noexcept
+{ return static_cast<int>(__lhs) < static_cast<int>(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const year& __lhs, const year& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const year& __lhs, const year& __rhs) noexcept
+{ return !(__rhs < __lhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const year& __lhs, const year& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year operator+ (const year& __lhs, const years& __rhs) noexcept
+{ return year(static_cast<int>(__lhs) + __rhs.count()); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year operator+ (const years& __lhs, const year& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year operator- (const year& __lhs, const years& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+years operator-(const year& __lhs, const year& __rhs) noexcept
+{ return years{static_cast<int>(__lhs) - static_cast<int>(__rhs)}; }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year& year::operator+=(const years& __dy) noexcept
+{ *this = *this + __dy; return *this; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year& year::operator-=(const years& __dy) noexcept
+{ *this = *this - __dy; return *this; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool year::ok() const noexcept
+{ return static_cast<int>(min()) <= __y && __y <= static_cast<int>(max()); }
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP___CHRONO_YEAR_H
diff --git a/libcxx/include/__chrono/year_month.h b/libcxx/include/__chrono/year_month.h
new file mode 100644
index 0000000000000..51b19caa11245
--- /dev/null
+++ b/libcxx/include/__chrono/year_month.h
@@ -0,0 +1,114 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_YEAR_MONTH_H
+#define _LIBCPP___CHRONO_YEAR_MONTH_H
+
+#include <__chrono/duration.h>
+#include <__chrono/month.h>
+#include <__chrono/year.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class year_month {
+ chrono::year __y;
+ chrono::month __m;
+public:
+ _LIBCPP_HIDE_FROM_ABI year_month() = default;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month(const chrono::year& __yval, const chrono::month& __mval) noexcept
+ : __y{__yval}, __m{__mval} {}
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator+=(const months& __dm) noexcept { this->__m += __dm; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator-=(const months& __dm) noexcept { this->__m -= __dm; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator+=(const years& __dy) noexcept { this->__y += __dy; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year_month& operator-=(const years& __dy) noexcept { this->__y -= __dy; return *this; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok(); }
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month operator/(const year& __y, const month& __m) noexcept { return year_month{__y, __m}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month operator/(const year& __y, int __m) noexcept { return year_month{__y, month(__m)}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const year_month& __lhs, const year_month& __rhs) noexcept
+{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const year_month& __lhs, const year_month& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const year_month& __lhs, const year_month& __rhs) noexcept
+{ return __lhs.year() != __rhs.year() ? __lhs.year() < __rhs.year() : __lhs.month() < __rhs.month(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const year_month& __lhs, const year_month& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const year_month& __lhs, const year_month& __rhs) noexcept
+{ return !(__rhs < __lhs);}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const year_month& __lhs, const year_month& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+year_month operator+(const year_month& __lhs, const months& __rhs) noexcept
+{
+ int __dmi = static_cast<int>(static_cast<unsigned>(__lhs.month())) - 1 + __rhs.count();
+ const int __dy = (__dmi >= 0 ? __dmi : __dmi-11) / 12;
+ __dmi = __dmi - __dy * 12 + 1;
+ return (__lhs.year() + years(__dy)) / month(static_cast<unsigned>(__dmi));
+}
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+year_month operator+(const months& __lhs, const year_month& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+year_month operator+(const year_month& __lhs, const years& __rhs) noexcept
+{ return (__lhs.year() + __rhs) / __lhs.month(); }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+year_month operator+(const years& __lhs, const year_month& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+months operator-(const year_month& __lhs, const year_month& __rhs) noexcept
+{ return (__lhs.year() - __rhs.year()) + months(static_cast<unsigned>(__lhs.month()) - static_cast<unsigned>(__rhs.month())); }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+year_month operator-(const year_month& __lhs, const months& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+_LIBCPP_HIDE_FROM_ABI constexpr
+year_month operator-(const year_month& __lhs, const years& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_YEAR_MONTH_H
diff --git a/libcxx/include/__chrono/year_month_day.h b/libcxx/include/__chrono/year_month_day.h
new file mode 100644
index 0000000000000..957716aab690b
--- /dev/null
+++ b/libcxx/include/__chrono/year_month_day.h
@@ -0,0 +1,323 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_YEAR_MONTH_DAY_H
+#define _LIBCPP___CHRONO_YEAR_MONTH_DAY_H
+
+#include <__chrono/calendar.h>
+#include <__chrono/day.h>
+#include <__chrono/duration.h>
+#include <__chrono/month.h>
+#include <__chrono/monthday.h>
+#include <__chrono/system_clock.h>
+#include <__chrono/time_point.h>
+#include <__chrono/year.h>
+#include <__chrono/year_month.h>
+#include <__config>
+#include <limits>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class year_month_day_last;
+
+class year_month_day {
+private:
+ chrono::year __y;
+ chrono::month __m;
+ chrono::day __d;
+public:
+ _LIBCPP_HIDE_FROM_ABI year_month_day() = default;
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day(
+ const chrono::year& __yval, const chrono::month& __mval, const chrono::day& __dval) noexcept
+ : __y{__yval}, __m{__mval}, __d{__dval} {}
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day(const year_month_day_last& __ymdl) noexcept;
+ _LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day(const sys_days& __sysd) noexcept
+ : year_month_day(__from_days(__sysd.time_since_epoch())) {}
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr year_month_day(const local_days& __locd) noexcept
+ : year_month_day(__from_days(__locd.time_since_epoch())) {}
+
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator+=(const months& __dm) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator-=(const months& __dm) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator+=(const years& __dy) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day& operator-=(const years& __dy) noexcept;
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::day day() const noexcept { return __d; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
+
+ _LIBCPP_HIDE_FROM_ABI constexpr bool ok() const noexcept;
+
+ _LIBCPP_HIDE_FROM_ABI static constexpr year_month_day __from_days(days __d) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
+};
+
+
+// https://howardhinnant.github.io/date_algorithms.html#civil_from_days
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day year_month_day::__from_days(days __d) noexcept
+{
+ static_assert(numeric_limits<unsigned>::digits >= 18, "");
+ static_assert(numeric_limits<int>::digits >= 20 , "");
+ const int __z = __d.count() + 719468;
+ const int __era = (__z >= 0 ? __z : __z - 146096) / 146097;
+ const unsigned __doe = static_cast<unsigned>(__z - __era * 146097); // [0, 146096]
+ const unsigned __yoe = (__doe - __doe/1460 + __doe/36524 - __doe/146096) / 365; // [0, 399]
+ const int __yr = static_cast<int>(__yoe) + __era * 400;
+ const unsigned __doy = __doe - (365 * __yoe + __yoe/4 - __yoe/100); // [0, 365]
+ const unsigned __mp = (5 * __doy + 2)/153; // [0, 11]
+ const unsigned __dy = __doy - (153 * __mp + 2)/5 + 1; // [1, 31]
+ const unsigned __mth = __mp + (__mp < 10 ? 3 : -9); // [1, 12]
+ return year_month_day{chrono::year{__yr + (__mth <= 2)}, chrono::month{__mth}, chrono::day{__dy}};
+}
+
+// https://howardhinnant.github.io/date_algorithms.html#days_from_civil
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+days year_month_day::__to_days() const noexcept
+{
+ static_assert(numeric_limits<unsigned>::digits >= 18, "");
+ static_assert(numeric_limits<int>::digits >= 20 , "");
+
+ const int __yr = static_cast<int>(__y) - (__m <= February);
+ const unsigned __mth = static_cast<unsigned>(__m);
+ const unsigned __dy = static_cast<unsigned>(__d);
+
+ const int __era = (__yr >= 0 ? __yr : __yr - 399) / 400;
+ const unsigned __yoe = static_cast<unsigned>(__yr - __era * 400); // [0, 399]
+ const unsigned __doy = (153 * (__mth + (__mth > 2 ? -3 : 9)) + 2) / 5 + __dy-1; // [0, 365]
+ const unsigned __doe = __yoe * 365 + __yoe/4 - __yoe/100 + __doy; // [0, 146096]
+ return days{__era * 146097 + static_cast<int>(__doe) - 719468};
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
+{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.day() == __rhs.day(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const year_month_day& __lhs, const year_month_day& __rhs) noexcept
+{
+ if (__lhs.year() < __rhs.year()) return true;
+ if (__lhs.year() > __rhs.year()) return false;
+ if (__lhs.month() < __rhs.month()) return true;
+ if (__lhs.month() > __rhs.month()) return false;
+ return __lhs.day() < __rhs.day();
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const year_month_day& __lhs, const year_month_day& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
+{ return !(__rhs < __lhs);}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const year_month_day& __lhs, const year_month_day& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator/(const year_month& __lhs, const day& __rhs) noexcept
+{ return year_month_day{__lhs.year(), __lhs.month(), __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator/(const year_month& __lhs, int __rhs) noexcept
+{ return __lhs / day(__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator/(const year& __lhs, const month_day& __rhs) noexcept
+{ return __lhs / __rhs.month() / __rhs.day(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator/(int __lhs, const month_day& __rhs) noexcept
+{ return year(__lhs) / __rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator/(const month_day& __lhs, const year& __rhs) noexcept
+{ return __rhs / __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator/(const month_day& __lhs, int __rhs) noexcept
+{ return year(__rhs) / __lhs; }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator+(const year_month_day& __lhs, const months& __rhs) noexcept
+{ return (__lhs.year()/__lhs.month() + __rhs)/__lhs.day(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator+(const months& __lhs, const year_month_day& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator-(const year_month_day& __lhs, const months& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator+(const year_month_day& __lhs, const years& __rhs) noexcept
+{ return (__lhs.year() + __rhs) / __lhs.month() / __lhs.day(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator+(const years& __lhs, const year_month_day& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day operator-(const year_month_day& __lhs, const years& __rhs) noexcept
+{ return __lhs + -__rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day& year_month_day::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
+
+class year_month_day_last {
+private:
+ chrono::year __y;
+ chrono::month_day_last __mdl;
+public:
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last(const year& __yval, const month_day_last& __mdlval) noexcept
+ : __y{__yval}, __mdl{__mdlval} {}
+
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator+=(const months& __m) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator-=(const months& __m) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator+=(const years& __y) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_day_last& operator-=(const years& __y) noexcept;
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __mdl.month(); }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month_day_last month_day_last() const noexcept { return __mdl; }
+ _LIBCPP_HIDE_FROM_ABI constexpr chrono::day day() const noexcept;
+ _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{year()/month()/day()}; }
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{year()/month()/day()}; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __mdl.ok(); }
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+chrono::day year_month_day_last::day() const noexcept
+{
+ constexpr chrono::day __d[] =
+ {
+ chrono::day(31), chrono::day(28), chrono::day(31),
+ chrono::day(30), chrono::day(31), chrono::day(30),
+ chrono::day(31), chrono::day(31), chrono::day(30),
+ chrono::day(31), chrono::day(30), chrono::day(31)
+ };
+ return (month() != February || !__y.is_leap()) && month().ok() ?
+ __d[static_cast<unsigned>(month()) - 1] : chrono::day{29};
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
+{ return __lhs.year() == __rhs.year() && __lhs.month_day_last() == __rhs.month_day_last(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator< (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
+{
+ if (__lhs.year() < __rhs.year()) return true;
+ if (__lhs.year() > __rhs.year()) return false;
+ return __lhs.month_day_last() < __rhs.month_day_last();
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator> (const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
+{ return __rhs < __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator<=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
+{ return !(__rhs < __lhs);}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator>=(const year_month_day_last& __lhs, const year_month_day_last& __rhs) noexcept
+{ return !(__lhs < __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator/(const year_month& __lhs, last_spec) noexcept
+{ return year_month_day_last{__lhs.year(), month_day_last{__lhs.month()}}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator/(const year& __lhs, const month_day_last& __rhs) noexcept
+{ return year_month_day_last{__lhs, __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator/(int __lhs, const month_day_last& __rhs) noexcept
+{ return year_month_day_last{year{__lhs}, __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last
+operator/(const month_day_last& __lhs, const year& __rhs) noexcept
+{ return __rhs / __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator/(const month_day_last& __lhs, int __rhs) noexcept
+{ return year{__rhs} / __lhs; }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator+(const year_month_day_last& __lhs, const months& __rhs) noexcept
+{ return (__lhs.year() / __lhs.month() + __rhs) / last; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator+(const months& __lhs, const year_month_day_last& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator-(const year_month_day_last& __lhs, const months& __rhs) noexcept
+{ return __lhs + (-__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator+(const year_month_day_last& __lhs, const years& __rhs) noexcept
+{ return year_month_day_last{__lhs.year() + __rhs, __lhs.month_day_last()}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator+(const years& __lhs, const year_month_day_last& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day_last operator-(const year_month_day_last& __lhs, const years& __rhs) noexcept
+{ return __lhs + (-__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_day_last& year_month_day_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_day::year_month_day(const year_month_day_last& __ymdl) noexcept
+ : __y{__ymdl.year()}, __m{__ymdl.month()}, __d{__ymdl.day()} {}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool year_month_day::ok() const noexcept
+{
+ if (!__y.ok() || !__m.ok()) return false;
+ return chrono::day{1} <= __d && __d <= (__y / __m / last).day();
+}
+
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_YEAR_MONTH_DAY_H
diff --git a/libcxx/include/__chrono/year_month_weekday.h b/libcxx/include/__chrono/year_month_weekday.h
new file mode 100644
index 0000000000000..9ba81e7e3f65e
--- /dev/null
+++ b/libcxx/include/__chrono/year_month_weekday.h
@@ -0,0 +1,255 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
+#define _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
+
+#include <__chrono/calendar.h>
+#include <__chrono/day.h>
+#include <__chrono/duration.h>
+#include <__chrono/month.h>
+#include <__chrono/month_weekday.h>
+#include <__chrono/system_clock.h>
+#include <__chrono/time_point.h>
+#include <__chrono/weekday.h>
+#include <__chrono/year.h>
+#include <__chrono/year_month.h>
+#include <__chrono/year_month_day.h>
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+# pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER > 17
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace chrono
+{
+
+class year_month_weekday {
+ chrono::year __y;
+ chrono::month __m;
+ chrono::weekday_indexed __wdi;
+public:
+ _LIBCPP_HIDE_FROM_ABI year_month_weekday() = default;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(const chrono::year& __yval, const chrono::month& __mval,
+ const chrono::weekday_indexed& __wdival) noexcept
+ : __y{__yval}, __m{__mval}, __wdi{__wdival} {}
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday(const sys_days& __sysd) noexcept
+ : year_month_weekday(__from_days(__sysd.time_since_epoch())) {}
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr year_month_weekday(const local_days& __locd) noexcept
+ : year_month_weekday(__from_days(__locd.time_since_epoch())) {}
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const months& m) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const months& m) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator+=(const years& y) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday& operator-=(const years& y) noexcept;
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdi.weekday(); }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr unsigned index() const noexcept { return __wdi.index(); }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_indexed weekday_indexed() const noexcept { return __wdi; }
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept
+ {
+ if (!__y.ok() || !__m.ok() || !__wdi.ok()) return false;
+ if (__wdi.index() <= 4) return true;
+ auto __nth_weekday_day =
+ __wdi.weekday() -
+ chrono::weekday{static_cast<sys_days>(__y / __m / 1)} +
+ days{(__wdi.index() - 1) * 7 + 1};
+ return static_cast<unsigned>(__nth_weekday_day.count()) <=
+ static_cast<unsigned>((__y / __m / last).day());
+ }
+
+ _LIBCPP_HIDE_FROM_ABI static constexpr year_month_weekday __from_days(days __d) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday year_month_weekday::__from_days(days __d) noexcept
+{
+ const sys_days __sysd{__d};
+ const chrono::weekday __wd = chrono::weekday(__sysd);
+ const year_month_day __ymd = year_month_day(__sysd);
+ return year_month_weekday{__ymd.year(), __ymd.month(),
+ __wd[(static_cast<unsigned>(__ymd.day())-1)/7+1]};
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+days year_month_weekday::__to_days() const noexcept
+{
+ const sys_days __sysd = sys_days(__y/__m/1);
+ return (__sysd + (__wdi.weekday() - chrono::weekday(__sysd) + days{(__wdi.index()-1)*7}))
+ .time_since_epoch();
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept
+{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_indexed() == __rhs.weekday_indexed(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const year_month_weekday& __lhs, const year_month_weekday& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator/(const year_month& __lhs, const weekday_indexed& __rhs) noexcept
+{ return year_month_weekday{__lhs.year(), __lhs.month(), __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator/(const year& __lhs, const month_weekday& __rhs) noexcept
+{ return year_month_weekday{__lhs, __rhs.month(), __rhs.weekday_indexed()}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator/(int __lhs, const month_weekday& __rhs) noexcept
+{ return year(__lhs) / __rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator/(const month_weekday& __lhs, const year& __rhs) noexcept
+{ return __rhs / __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator/(const month_weekday& __lhs, int __rhs) noexcept
+{ return year(__rhs) / __lhs; }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator+(const year_month_weekday& __lhs, const months& __rhs) noexcept
+{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_indexed(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator+(const months& __lhs, const year_month_weekday& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator-(const year_month_weekday& __lhs, const months& __rhs) noexcept
+{ return __lhs + (-__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator+(const year_month_weekday& __lhs, const years& __rhs) noexcept
+{ return year_month_weekday{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_indexed()}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator+(const years& __lhs, const year_month_weekday& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday operator-(const year_month_weekday& __lhs, const years& __rhs) noexcept
+{ return __lhs + (-__rhs); }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday& year_month_weekday::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
+
+class year_month_weekday_last {
+private:
+ chrono::year __y;
+ chrono::month __m;
+ chrono::weekday_last __wdl;
+public:
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last(const chrono::year& __yval, const chrono::month& __mval,
+ const chrono::weekday_last& __wdlval) noexcept
+ : __y{__yval}, __m{__mval}, __wdl{__wdlval} {}
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const months& __dm) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const months& __dm) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator+=(const years& __dy) noexcept;
+ _LIBCPP_HIDE_FROM_ABI constexpr year_month_weekday_last& operator-=(const years& __dy) noexcept;
+
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::year year() const noexcept { return __y; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::month month() const noexcept { return __m; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday weekday() const noexcept { return __wdl.weekday(); }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr chrono::weekday_last weekday_last() const noexcept { return __wdl; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr operator sys_days() const noexcept { return sys_days{__to_days()}; }
+ _LIBCPP_HIDE_FROM_ABI inline explicit constexpr operator local_days() const noexcept { return local_days{__to_days()}; }
+ _LIBCPP_HIDE_FROM_ABI inline constexpr bool ok() const noexcept { return __y.ok() && __m.ok() && __wdl.ok(); }
+
+ _LIBCPP_HIDE_FROM_ABI constexpr days __to_days() const noexcept;
+
+};
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+days year_month_weekday_last::__to_days() const noexcept
+{
+ const sys_days __last = sys_days{__y/__m/last};
+ return (__last - (chrono::weekday{__last} - __wdl.weekday())).time_since_epoch();
+
+}
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator==(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept
+{ return __lhs.year() == __rhs.year() && __lhs.month() == __rhs.month() && __lhs.weekday_last() == __rhs.weekday_last(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+bool operator!=(const year_month_weekday_last& __lhs, const year_month_weekday_last& __rhs) noexcept
+{ return !(__lhs == __rhs); }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator/(const year_month& __lhs, const weekday_last& __rhs) noexcept
+{ return year_month_weekday_last{__lhs.year(), __lhs.month(), __rhs}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator/(const year& __lhs, const month_weekday_last& __rhs) noexcept
+{ return year_month_weekday_last{__lhs, __rhs.month(), __rhs.weekday_last()}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator/(int __lhs, const month_weekday_last& __rhs) noexcept
+{ return year(__lhs) / __rhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator/(const month_weekday_last& __lhs, const year& __rhs) noexcept
+{ return __rhs / __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator/(const month_weekday_last& __lhs, int __rhs) noexcept
+{ return year(__rhs) / __lhs; }
+
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const months& __rhs) noexcept
+{ return (__lhs.year() / __lhs.month() + __rhs) / __lhs.weekday_last(); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator+(const months& __lhs, const year_month_weekday_last& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const months& __rhs) noexcept
+{ return __lhs + (-__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator+(const year_month_weekday_last& __lhs, const years& __rhs) noexcept
+{ return year_month_weekday_last{__lhs.year() + __rhs, __lhs.month(), __lhs.weekday_last()}; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator+(const years& __lhs, const year_month_weekday_last& __rhs) noexcept
+{ return __rhs + __lhs; }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr
+year_month_weekday_last operator-(const year_month_weekday_last& __lhs, const years& __rhs) noexcept
+{ return __lhs + (-__rhs); }
+
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const months& __dm) noexcept { *this = *this + __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const months& __dm) noexcept { *this = *this - __dm; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator+=(const years& __dy) noexcept { *this = *this + __dy; return *this; }
+_LIBCPP_HIDE_FROM_ABI inline constexpr year_month_weekday_last& year_month_weekday_last::operator-=(const years& __dy) noexcept { *this = *this - __dy; return *this; }
+
+} // namespace chrono
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER > 17
+
+#endif // _LIBCPP___CHRONO_YEAR_MONTH_WEEKDAY_H
diff --git a/libcxx/include/chrono b/libcxx/include/chrono
index c6efd33345ed0..9185d74c09c41 100644
--- a/libcxx/include/chrono
+++ b/libcxx/include/chrono
@@ -697,12 +697,23 @@ constexpr chrono::year operator ""y(unsigned lo
#include <__assert> // all public C++ headers provide the assertion handler
#include <__chrono/calendar.h>
#include <__chrono/convert_to_timespec.h>
+#include <__chrono/day.h>
#include <__chrono/duration.h>
#include <__chrono/file_clock.h>
+#include <__chrono/hh_mm_ss.h>
#include <__chrono/high_resolution_clock.h>
+#include <__chrono/literals.h>
+#include <__chrono/month.h>
+#include <__chrono/month_weekday.h>
+#include <__chrono/monthday.h>
#include <__chrono/steady_clock.h>
#include <__chrono/system_clock.h>
#include <__chrono/time_point.h>
+#include <__chrono/weekday.h>
+#include <__chrono/year.h>
+#include <__chrono/year_month.h>
+#include <__chrono/year_month_day.h>
+#include <__chrono/year_month_weekday.h>
#include <__config>
#include <compare>
#include <version>
diff --git a/libcxx/include/module.modulemap b/libcxx/include/module.modulemap
index aaedf4d0341df..ef373874aff41 100644
--- a/libcxx/include/module.modulemap
+++ b/libcxx/include/module.modulemap
@@ -391,12 +391,23 @@ module std [system] {
module __chrono {
module calendar { private header "__chrono/calendar.h" }
module convert_to_timespec { private header "__chrono/convert_to_timespec.h" }
+ module day { private header "__chrono/day.h" }
module duration { private header "__chrono/duration.h" }
module file_clock { private header "__chrono/file_clock.h" }
+ module hh_mm_ss { private header "__chrono/hh_mm_ss.h" }
module high_resolution_clock { private header "__chrono/high_resolution_clock.h" }
+ module literals { private header "__chrono/literals.h" }
+ module month { private header "__chrono/month.h" }
+ module month_weekday { private header "__chrono/month_weekday.h" }
+ module monthday { private header "__chrono/monthday.h" }
module steady_clock { private header "__chrono/steady_clock.h" }
module system_clock { private header "__chrono/system_clock.h" }
module time_point { private header "__chrono/time_point.h" }
+ module weekday { private header "__chrono/weekday.h" }
+ module year { private header "__chrono/year.h" }
+ module year_month { private header "__chrono/year_month.h" }
+ module year_month_day { private header "__chrono/year_month_day.h" }
+ module year_month_weekday { private header "__chrono/year_month_weekday.h" }
}
}
module codecvt {
diff --git a/libcxx/test/libcxx/private_headers.verify.cpp b/libcxx/test/libcxx/private_headers.verify.cpp
index a96e593783037..96c8014b3e1b2 100644
--- a/libcxx/test/libcxx/private_headers.verify.cpp
+++ b/libcxx/test/libcxx/private_headers.verify.cpp
@@ -156,12 +156,23 @@ END-SCRIPT
#include <__charconv/to_chars_result.h> // expected-error@*:* {{use of private header from outside its module: '__charconv/to_chars_result.h'}}
#include <__chrono/calendar.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/calendar.h'}}
#include <__chrono/convert_to_timespec.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/convert_to_timespec.h'}}
+#include <__chrono/day.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/day.h'}}
#include <__chrono/duration.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/duration.h'}}
#include <__chrono/file_clock.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/file_clock.h'}}
+#include <__chrono/hh_mm_ss.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/hh_mm_ss.h'}}
#include <__chrono/high_resolution_clock.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/high_resolution_clock.h'}}
+#include <__chrono/literals.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/literals.h'}}
+#include <__chrono/month.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/month.h'}}
+#include <__chrono/month_weekday.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/month_weekday.h'}}
+#include <__chrono/monthday.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/monthday.h'}}
#include <__chrono/steady_clock.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/steady_clock.h'}}
#include <__chrono/system_clock.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/system_clock.h'}}
#include <__chrono/time_point.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/time_point.h'}}
+#include <__chrono/weekday.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/weekday.h'}}
+#include <__chrono/year.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/year.h'}}
+#include <__chrono/year_month.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/year_month.h'}}
+#include <__chrono/year_month_day.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/year_month_day.h'}}
+#include <__chrono/year_month_weekday.h> // expected-error@*:* {{use of private header from outside its module: '__chrono/year_month_weekday.h'}}
#include <__compare/common_comparison_category.h> // expected-error@*:* {{use of private header from outside its module: '__compare/common_comparison_category.h'}}
#include <__compare/compare_partial_order_fallback.h> // expected-error@*:* {{use of private header from outside its module: '__compare/compare_partial_order_fallback.h'}}
#include <__compare/compare_strong_order_fallback.h> // expected-error@*:* {{use of private header from outside its module: '__compare/compare_strong_order_fallback.h'}}
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