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diff --git a/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h b/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h
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+++ b/third_party/abseil-cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h
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+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_
+#define ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_
+
+#include <cstdint>
+#include <limits>
+#include <ostream>
+#include <type_traits>
+
+#include "absl/base/config.h"
+
+// Disable constexpr support unless we are in C++14 mode.
+#if __cpp_constexpr >= 201304 || (defined(_MSC_VER) && _MSC_VER >= 1910)
+#define CONSTEXPR_D constexpr // data
+#define CONSTEXPR_F constexpr // function
+#define CONSTEXPR_M constexpr // member
+#else
+#define CONSTEXPR_D const
+#define CONSTEXPR_F inline
+#define CONSTEXPR_M
+#endif
+
+namespace absl {
+ABSL_NAMESPACE_BEGIN
+namespace time_internal {
+namespace cctz {
+
+// Support years that at least span the range of 64-bit time_t values.
+using year_t = std::int_fast64_t;
+
+// Type alias that indicates an argument is not normalized (e.g., the
+// constructor parameters and operands/results of addition/subtraction).
+using diff_t = std::int_fast64_t;
+
+namespace detail {
+
+// Type aliases that indicate normalized argument values.
+using month_t = std::int_fast8_t; // [1:12]
+using day_t = std::int_fast8_t; // [1:31]
+using hour_t = std::int_fast8_t; // [0:23]
+using minute_t = std::int_fast8_t; // [0:59]
+using second_t = std::int_fast8_t; // [0:59]
+
+// Normalized civil-time fields: Y-M-D HH:MM:SS.
+struct fields {
+ CONSTEXPR_M fields(year_t year, month_t month, day_t day, hour_t hour,
+ minute_t minute, second_t second)
+ : y(year), m(month), d(day), hh(hour), mm(minute), ss(second) {}
+ std::int_least64_t y;
+ std::int_least8_t m;
+ std::int_least8_t d;
+ std::int_least8_t hh;
+ std::int_least8_t mm;
+ std::int_least8_t ss;
+};
+
+struct second_tag {};
+struct minute_tag : second_tag {};
+struct hour_tag : minute_tag {};
+struct day_tag : hour_tag {};
+struct month_tag : day_tag {};
+struct year_tag : month_tag {};
+
+////////////////////////////////////////////////////////////////////////
+
+// Field normalization (without avoidable overflow).
+
+namespace impl {
+
+CONSTEXPR_F bool is_leap_year(year_t y) noexcept {
+ return y % 4 == 0 && (y % 100 != 0 || y % 400 == 0);
+}
+CONSTEXPR_F int year_index(year_t y, month_t m) noexcept {
+ return (static_cast<int>((y + (m > 2)) % 400) + 400) % 400;
+}
+CONSTEXPR_F int days_per_century(year_t y, month_t m) noexcept {
+ const int yi = year_index(y, m);
+ return 36524 + (yi == 0 || yi > 300);
+}
+CONSTEXPR_F int days_per_4years(year_t y, month_t m) noexcept {
+ const int yi = year_index(y, m);
+ return 1460 + (yi == 0 || yi > 300 || (yi - 1) % 100 < 96);
+}
+CONSTEXPR_F int days_per_year(year_t y, month_t m) noexcept {
+ return is_leap_year(y + (m > 2)) ? 366 : 365;
+}
+CONSTEXPR_F int days_per_month(year_t y, month_t m) noexcept {
+ CONSTEXPR_D int k_days_per_month[1 + 12] = {
+ -1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 // non leap year
+ };
+ return k_days_per_month[m] + (m == 2 && is_leap_year(y));
+}
+
+CONSTEXPR_F fields n_day(year_t y, month_t m, diff_t d, diff_t cd, hour_t hh,
+ minute_t mm, second_t ss) noexcept {
+ y += (cd / 146097) * 400;
+ cd %= 146097;
+ if (cd < 0) {
+ y -= 400;
+ cd += 146097;
+ }
+ y += (d / 146097) * 400;
+ d = d % 146097 + cd;
+ if (d > 0) {
+ if (d > 146097) {
+ y += 400;
+ d -= 146097;
+ }
+ } else {
+ if (d > -365) {
+ // We often hit the previous year when stepping a civil time backwards,
+ // so special case it to avoid counting up by 100/4/1-year chunks.
+ y -= 1;
+ d += days_per_year(y, m);
+ } else {
+ y -= 400;
+ d += 146097;
+ }
+ }
+ if (d > 365) {
+ for (int n = days_per_century(y, m); d > n; n = days_per_century(y, m)) {
+ d -= n;
+ y += 100;
+ }
+ for (int n = days_per_4years(y, m); d > n; n = days_per_4years(y, m)) {
+ d -= n;
+ y += 4;
+ }
+ for (int n = days_per_year(y, m); d > n; n = days_per_year(y, m)) {
+ d -= n;
+ ++y;
+ }
+ }
+ if (d > 28) {
+ for (int n = days_per_month(y, m); d > n; n = days_per_month(y, m)) {
+ d -= n;
+ if (++m > 12) {
+ ++y;
+ m = 1;
+ }
+ }
+ }
+ return fields(y, m, static_cast<day_t>(d), hh, mm, ss);
+}
+CONSTEXPR_F fields n_mon(year_t y, diff_t m, diff_t d, diff_t cd, hour_t hh,
+ minute_t mm, second_t ss) noexcept {
+ if (m != 12) {
+ y += m / 12;
+ m %= 12;
+ if (m <= 0) {
+ y -= 1;
+ m += 12;
+ }
+ }
+ return n_day(y, static_cast<month_t>(m), d, cd, hh, mm, ss);
+}
+CONSTEXPR_F fields n_hour(year_t y, diff_t m, diff_t d, diff_t cd, diff_t hh,
+ minute_t mm, second_t ss) noexcept {
+ cd += hh / 24;
+ hh %= 24;
+ if (hh < 0) {
+ cd -= 1;
+ hh += 24;
+ }
+ return n_mon(y, m, d, cd, static_cast<hour_t>(hh), mm, ss);
+}
+CONSTEXPR_F fields n_min(year_t y, diff_t m, diff_t d, diff_t hh, diff_t ch,
+ diff_t mm, second_t ss) noexcept {
+ ch += mm / 60;
+ mm %= 60;
+ if (mm < 0) {
+ ch -= 1;
+ mm += 60;
+ }
+ return n_hour(y, m, d, hh / 24 + ch / 24, hh % 24 + ch % 24,
+ static_cast<minute_t>(mm), ss);
+}
+CONSTEXPR_F fields n_sec(year_t y, diff_t m, diff_t d, diff_t hh, diff_t mm,
+ diff_t ss) noexcept {
+ // Optimization for when (non-constexpr) fields are already normalized.
+ if (0 <= ss && ss < 60) {
+ const second_t nss = static_cast<second_t>(ss);
+ if (0 <= mm && mm < 60) {
+ const minute_t nmm = static_cast<minute_t>(mm);
+ if (0 <= hh && hh < 24) {
+ const hour_t nhh = static_cast<hour_t>(hh);
+ if (1 <= d && d <= 28 && 1 <= m && m <= 12) {
+ const day_t nd = static_cast<day_t>(d);
+ const month_t nm = static_cast<month_t>(m);
+ return fields(y, nm, nd, nhh, nmm, nss);
+ }
+ return n_mon(y, m, d, 0, nhh, nmm, nss);
+ }
+ return n_hour(y, m, d, hh / 24, hh % 24, nmm, nss);
+ }
+ return n_min(y, m, d, hh, mm / 60, mm % 60, nss);
+ }
+ diff_t cm = ss / 60;
+ ss %= 60;
+ if (ss < 0) {
+ cm -= 1;
+ ss += 60;
+ }
+ return n_min(y, m, d, hh, mm / 60 + cm / 60, mm % 60 + cm % 60,
+ static_cast<second_t>(ss));
+}
+
+} // namespace impl
+
+////////////////////////////////////////////////////////////////////////
+
+// Increments the indicated (normalized) field by "n".
+CONSTEXPR_F fields step(second_tag, fields f, diff_t n) noexcept {
+ return impl::n_sec(f.y, f.m, f.d, f.hh, f.mm + n / 60, f.ss + n % 60);
+}
+CONSTEXPR_F fields step(minute_tag, fields f, diff_t n) noexcept {
+ return impl::n_min(f.y, f.m, f.d, f.hh + n / 60, 0, f.mm + n % 60, f.ss);
+}
+CONSTEXPR_F fields step(hour_tag, fields f, diff_t n) noexcept {
+ return impl::n_hour(f.y, f.m, f.d + n / 24, 0, f.hh + n % 24, f.mm, f.ss);
+}
+CONSTEXPR_F fields step(day_tag, fields f, diff_t n) noexcept {
+ return impl::n_day(f.y, f.m, f.d, n, f.hh, f.mm, f.ss);
+}
+CONSTEXPR_F fields step(month_tag, fields f, diff_t n) noexcept {
+ return impl::n_mon(f.y + n / 12, f.m + n % 12, f.d, 0, f.hh, f.mm, f.ss);
+}
+CONSTEXPR_F fields step(year_tag, fields f, diff_t n) noexcept {
+ return fields(f.y + n, f.m, f.d, f.hh, f.mm, f.ss);
+}
+
+////////////////////////////////////////////////////////////////////////
+
+namespace impl {
+
+// Returns (v * f + a) but avoiding intermediate overflow when possible.
+CONSTEXPR_F diff_t scale_add(diff_t v, diff_t f, diff_t a) noexcept {
+ return (v < 0) ? ((v + 1) * f + a) - f : ((v - 1) * f + a) + f;
+}
+
+// Map a (normalized) Y/M/D to the number of days before/after 1970-01-01.
+// Probably overflows for years outside [-292277022656:292277026595].
+CONSTEXPR_F diff_t ymd_ord(year_t y, month_t m, day_t d) noexcept {
+ const diff_t eyear = (m <= 2) ? y - 1 : y;
+ const diff_t era = (eyear >= 0 ? eyear : eyear - 399) / 400;
+ const diff_t yoe = eyear - era * 400;
+ const diff_t doy = (153 * (m + (m > 2 ? -3 : 9)) + 2) / 5 + d - 1;
+ const diff_t doe = yoe * 365 + yoe / 4 - yoe / 100 + doy;
+ return era * 146097 + doe - 719468;
+}
+
+// Returns the difference in days between two normalized Y-M-D tuples.
+// ymd_ord() will encounter integer overflow given extreme year values,
+// yet the difference between two such extreme values may actually be
+// small, so we take a little care to avoid overflow when possible by
+// exploiting the 146097-day cycle.
+CONSTEXPR_F diff_t day_difference(year_t y1, month_t m1, day_t d1, year_t y2,
+ month_t m2, day_t d2) noexcept {
+ const diff_t a_c4_off = y1 % 400;
+ const diff_t b_c4_off = y2 % 400;
+ diff_t c4_diff = (y1 - a_c4_off) - (y2 - b_c4_off);
+ diff_t delta = ymd_ord(a_c4_off, m1, d1) - ymd_ord(b_c4_off, m2, d2);
+ if (c4_diff > 0 && delta < 0) {
+ delta += 2 * 146097;
+ c4_diff -= 2 * 400;
+ } else if (c4_diff < 0 && delta > 0) {
+ delta -= 2 * 146097;
+ c4_diff += 2 * 400;
+ }
+ return (c4_diff / 400 * 146097) + delta;
+}
+
+} // namespace impl
+
+// Returns the difference between fields structs using the indicated unit.
+CONSTEXPR_F diff_t difference(year_tag, fields f1, fields f2) noexcept {
+ return f1.y - f2.y;
+}
+CONSTEXPR_F diff_t difference(month_tag, fields f1, fields f2) noexcept {
+ return impl::scale_add(difference(year_tag{}, f1, f2), 12, (f1.m - f2.m));
+}
+CONSTEXPR_F diff_t difference(day_tag, fields f1, fields f2) noexcept {
+ return impl::day_difference(f1.y, f1.m, f1.d, f2.y, f2.m, f2.d);
+}
+CONSTEXPR_F diff_t difference(hour_tag, fields f1, fields f2) noexcept {
+ return impl::scale_add(difference(day_tag{}, f1, f2), 24, (f1.hh - f2.hh));
+}
+CONSTEXPR_F diff_t difference(minute_tag, fields f1, fields f2) noexcept {
+ return impl::scale_add(difference(hour_tag{}, f1, f2), 60, (f1.mm - f2.mm));
+}
+CONSTEXPR_F diff_t difference(second_tag, fields f1, fields f2) noexcept {
+ return impl::scale_add(difference(minute_tag{}, f1, f2), 60, f1.ss - f2.ss);
+}
+
+////////////////////////////////////////////////////////////////////////
+
+// Aligns the (normalized) fields struct to the indicated field.
+CONSTEXPR_F fields align(second_tag, fields f) noexcept { return f; }
+CONSTEXPR_F fields align(minute_tag, fields f) noexcept {
+ return fields{f.y, f.m, f.d, f.hh, f.mm, 0};
+}
+CONSTEXPR_F fields align(hour_tag, fields f) noexcept {
+ return fields{f.y, f.m, f.d, f.hh, 0, 0};
+}
+CONSTEXPR_F fields align(day_tag, fields f) noexcept {
+ return fields{f.y, f.m, f.d, 0, 0, 0};
+}
+CONSTEXPR_F fields align(month_tag, fields f) noexcept {
+ return fields{f.y, f.m, 1, 0, 0, 0};
+}
+CONSTEXPR_F fields align(year_tag, fields f) noexcept {
+ return fields{f.y, 1, 1, 0, 0, 0};
+}
+
+////////////////////////////////////////////////////////////////////////
+
+namespace impl {
+
+template <typename H>
+H AbslHashValueImpl(second_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d, f.hh, f.mm, f.ss);
+}
+template <typename H>
+H AbslHashValueImpl(minute_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d, f.hh, f.mm);
+}
+template <typename H>
+H AbslHashValueImpl(hour_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d, f.hh);
+}
+template <typename H>
+H AbslHashValueImpl(day_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m, f.d);
+}
+template <typename H>
+H AbslHashValueImpl(month_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y, f.m);
+}
+template <typename H>
+H AbslHashValueImpl(year_tag, H h, fields f) {
+ return H::combine(std::move(h), f.y);
+}
+
+} // namespace impl
+
+////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+class civil_time {
+ public:
+ explicit CONSTEXPR_M civil_time(year_t y, diff_t m = 1, diff_t d = 1,
+ diff_t hh = 0, diff_t mm = 0,
+ diff_t ss = 0) noexcept
+ : civil_time(impl::n_sec(y, m, d, hh, mm, ss)) {}
+
+ CONSTEXPR_M civil_time() noexcept : f_{1970, 1, 1, 0, 0, 0} {}
+ civil_time(const civil_time&) = default;
+ civil_time& operator=(const civil_time&) = default;
+
+ // Conversion between civil times of different alignment. Conversion to
+ // a more precise alignment is allowed implicitly (e.g., day -> hour),
+ // but conversion where information is discarded must be explicit
+ // (e.g., second -> minute).
+ template <typename U, typename S>
+ using preserves_data =
+ typename std::enable_if<std::is_base_of<U, S>::value>::type;
+ template <typename U>
+ CONSTEXPR_M civil_time(const civil_time<U>& ct,
+ preserves_data<T, U>* = nullptr) noexcept
+ : civil_time(ct.f_) {}
+ template <typename U>
+ explicit CONSTEXPR_M civil_time(const civil_time<U>& ct,
+ preserves_data<U, T>* = nullptr) noexcept
+ : civil_time(ct.f_) {}
+
+ // Factories for the maximum/minimum representable civil_time.
+ static CONSTEXPR_F civil_time(max)() {
+ const auto max_year = (std::numeric_limits<std::int_least64_t>::max)();
+ return civil_time(max_year, 12, 31, 23, 59, 59);
+ }
+ static CONSTEXPR_F civil_time(min)() {
+ const auto min_year = (std::numeric_limits<std::int_least64_t>::min)();
+ return civil_time(min_year, 1, 1, 0, 0, 0);
+ }
+
+ // Field accessors. Note: All but year() return an int.
+ CONSTEXPR_M year_t year() const noexcept { return f_.y; }
+ CONSTEXPR_M int month() const noexcept { return f_.m; }
+ CONSTEXPR_M int day() const noexcept { return f_.d; }
+ CONSTEXPR_M int hour() const noexcept { return f_.hh; }
+ CONSTEXPR_M int minute() const noexcept { return f_.mm; }
+ CONSTEXPR_M int second() const noexcept { return f_.ss; }
+
+ // Assigning arithmetic.
+ CONSTEXPR_M civil_time& operator+=(diff_t n) noexcept {
+ f_ = step(T{}, f_, n);
+ return *this;
+ }
+ CONSTEXPR_M civil_time& operator-=(diff_t n) noexcept {
+ if (n != (std::numeric_limits<diff_t>::min)()) {
+ f_ = step(T{}, f_, -n);
+ } else {
+ f_ = step(T{}, step(T{}, f_, -(n + 1)), 1);
+ }
+ return *this;
+ }
+ CONSTEXPR_M civil_time& operator++() noexcept { return *this += 1; }
+ CONSTEXPR_M civil_time operator++(int) noexcept {
+ const civil_time a = *this;
+ ++*this;
+ return a;
+ }
+ CONSTEXPR_M civil_time& operator--() noexcept { return *this -= 1; }
+ CONSTEXPR_M civil_time operator--(int) noexcept {
+ const civil_time a = *this;
+ --*this;
+ return a;
+ }
+
+ // Binary arithmetic operators.
+ friend CONSTEXPR_F civil_time operator+(civil_time a, diff_t n) noexcept {
+ return a += n;
+ }
+ friend CONSTEXPR_F civil_time operator+(diff_t n, civil_time a) noexcept {
+ return a += n;
+ }
+ friend CONSTEXPR_F civil_time operator-(civil_time a, diff_t n) noexcept {
+ return a -= n;
+ }
+ friend CONSTEXPR_F diff_t operator-(civil_time lhs, civil_time rhs) noexcept {
+ return difference(T{}, lhs.f_, rhs.f_);
+ }
+
+ template <typename H>
+ friend H AbslHashValue(H h, civil_time a) {
+ return impl::AbslHashValueImpl(T{}, std::move(h), a.f_);
+ }
+
+ private:
+ // All instantiations of this template are allowed to call the following
+ // private constructor and access the private fields member.
+ template <typename U>
+ friend class civil_time;
+
+ // The designated constructor that all others eventually call.
+ explicit CONSTEXPR_M civil_time(fields f) noexcept : f_(align(T{}, f)) {}
+
+ fields f_;
+};
+
+// Disallows difference between differently aligned types.
+// auto n = civil_day(...) - civil_hour(...); // would be confusing.
+template <typename T, typename U>
+CONSTEXPR_F diff_t operator-(civil_time<T>, civil_time<U>) = delete;
+
+using civil_year = civil_time<year_tag>;
+using civil_month = civil_time<month_tag>;
+using civil_day = civil_time<day_tag>;
+using civil_hour = civil_time<hour_tag>;
+using civil_minute = civil_time<minute_tag>;
+using civil_second = civil_time<second_tag>;
+
+////////////////////////////////////////////////////////////////////////
+
+// Relational operators that work with differently aligned objects.
+// Always compares all six fields.
+template <typename T1, typename T2>
+CONSTEXPR_F bool operator<(const civil_time<T1>& lhs,
+ const civil_time<T2>& rhs) noexcept {
+ return (
+ lhs.year() < rhs.year() ||
+ (lhs.year() == rhs.year() &&
+ (lhs.month() < rhs.month() ||
+ (lhs.month() == rhs.month() &&
+ (lhs.day() < rhs.day() || (lhs.day() == rhs.day() &&
+ (lhs.hour() < rhs.hour() ||
+ (lhs.hour() == rhs.hour() &&
+ (lhs.minute() < rhs.minute() ||
+ (lhs.minute() == rhs.minute() &&
+ (lhs.second() < rhs.second())))))))))));
+}
+template <typename T1, typename T2>
+CONSTEXPR_F bool operator<=(const civil_time<T1>& lhs,
+ const civil_time<T2>& rhs) noexcept {
+ return !(rhs < lhs);
+}
+template <typename T1, typename T2>
+CONSTEXPR_F bool operator>=(const civil_time<T1>& lhs,
+ const civil_time<T2>& rhs) noexcept {
+ return !(lhs < rhs);
+}
+template <typename T1, typename T2>
+CONSTEXPR_F bool operator>(const civil_time<T1>& lhs,
+ const civil_time<T2>& rhs) noexcept {
+ return rhs < lhs;
+}
+template <typename T1, typename T2>
+CONSTEXPR_F bool operator==(const civil_time<T1>& lhs,
+ const civil_time<T2>& rhs) noexcept {
+ return lhs.year() == rhs.year() && lhs.month() == rhs.month() &&
+ lhs.day() == rhs.day() && lhs.hour() == rhs.hour() &&
+ lhs.minute() == rhs.minute() && lhs.second() == rhs.second();
+}
+template <typename T1, typename T2>
+CONSTEXPR_F bool operator!=(const civil_time<T1>& lhs,
+ const civil_time<T2>& rhs) noexcept {
+ return !(lhs == rhs);
+}
+
+////////////////////////////////////////////////////////////////////////
+
+enum class weekday {
+ monday,
+ tuesday,
+ wednesday,
+ thursday,
+ friday,
+ saturday,
+ sunday,
+};
+
+CONSTEXPR_F weekday get_weekday(const civil_second& cs) noexcept {
+ CONSTEXPR_D weekday k_weekday_by_mon_off[13] = {
+ weekday::monday, weekday::tuesday, weekday::wednesday,
+ weekday::thursday, weekday::friday, weekday::saturday,
+ weekday::sunday, weekday::monday, weekday::tuesday,
+ weekday::wednesday, weekday::thursday, weekday::friday,
+ weekday::saturday,
+ };
+ CONSTEXPR_D int k_weekday_offsets[1 + 12] = {
+ -1, 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4,
+ };
+ year_t wd = 2400 + (cs.year() % 400) - (cs.month() < 3);
+ wd += wd / 4 - wd / 100 + wd / 400;
+ wd += k_weekday_offsets[cs.month()] + cs.day();
+ return k_weekday_by_mon_off[wd % 7 + 6];
+}
+
+////////////////////////////////////////////////////////////////////////
+
+CONSTEXPR_F civil_day next_weekday(civil_day cd, weekday wd) noexcept {
+ CONSTEXPR_D weekday k_weekdays_forw[14] = {
+ weekday::monday, weekday::tuesday, weekday::wednesday,
+ weekday::thursday, weekday::friday, weekday::saturday,
+ weekday::sunday, weekday::monday, weekday::tuesday,
+ weekday::wednesday, weekday::thursday, weekday::friday,
+ weekday::saturday, weekday::sunday,
+ };
+ weekday base = get_weekday(cd);
+ for (int i = 0;; ++i) {
+ if (base == k_weekdays_forw[i]) {
+ for (int j = i + 1;; ++j) {
+ if (wd == k_weekdays_forw[j]) {
+ return cd + (j - i);
+ }
+ }
+ }
+ }
+}
+
+CONSTEXPR_F civil_day prev_weekday(civil_day cd, weekday wd) noexcept {
+ CONSTEXPR_D weekday k_weekdays_back[14] = {
+ weekday::sunday, weekday::saturday, weekday::friday,
+ weekday::thursday, weekday::wednesday, weekday::tuesday,
+ weekday::monday, weekday::sunday, weekday::saturday,
+ weekday::friday, weekday::thursday, weekday::wednesday,
+ weekday::tuesday, weekday::monday,
+ };
+ weekday base = get_weekday(cd);
+ for (int i = 0;; ++i) {
+ if (base == k_weekdays_back[i]) {
+ for (int j = i + 1;; ++j) {
+ if (wd == k_weekdays_back[j]) {
+ return cd - (j - i);
+ }
+ }
+ }
+ }
+}
+
+CONSTEXPR_F int get_yearday(const civil_second& cs) noexcept {
+ CONSTEXPR_D int k_month_offsets[1 + 12] = {
+ -1, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334,
+ };
+ const int feb29 = (cs.month() > 2 && impl::is_leap_year(cs.year()));
+ return k_month_offsets[cs.month()] + feb29 + cs.day();
+}
+
+////////////////////////////////////////////////////////////////////////
+
+std::ostream& operator<<(std::ostream& os, const civil_year& y);
+std::ostream& operator<<(std::ostream& os, const civil_month& m);
+std::ostream& operator<<(std::ostream& os, const civil_day& d);
+std::ostream& operator<<(std::ostream& os, const civil_hour& h);
+std::ostream& operator<<(std::ostream& os, const civil_minute& m);
+std::ostream& operator<<(std::ostream& os, const civil_second& s);
+std::ostream& operator<<(std::ostream& os, weekday wd);
+
+} // namespace detail
+} // namespace cctz
+} // namespace time_internal
+ABSL_NAMESPACE_END
+} // namespace absl
+
+#undef CONSTEXPR_M
+#undef CONSTEXPR_F
+#undef CONSTEXPR_D
+
+#endif // ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-25 10:53:55 +0000