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[libc++][TZDB] Implements zoned_seconds typedef. (#95141)

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Implements parts of:
- P0355 Extending to chrono Calendars and Time Zones
This commit is contained in:
Mark de Wever 2024-07-10 18:35:43 +02:00 committed by GitHub
parent b9496a74eb
commit eae174c724
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GPG Key ID: B5690EEEBB952194
4 changed files with 9 additions and 2 deletions
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2
libcxx/include/__chrono/zoned_time.h
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@ -205,6 +205,8 @@ template <class _Duration, class _TimeZonePtrOrName, class TimeZonePtr2>
zoned_time(_TimeZonePtrOrName&&, zoned_time<_Duration, TimeZonePtr2>, choose = choose::earliest)
-> zoned_time<common_type_t<_Duration, seconds>, __time_zone_representation<_TimeZonePtrOrName>>;
using zoned_seconds = zoned_time<seconds>;
template <class _Duration1, class _Duration2, class _TimeZonePtr>
_LIBCPP_HIDE_FROM_ABI bool
operator==(const zoned_time<_Duration1, _TimeZonePtr>& __lhs, const zoned_time<_Duration2, _TimeZonePtr>& __rhs) {

2
libcxx/include/chrono
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@ -793,6 +793,8 @@ template<class T> struct zoned_traits;
template<class Duration, class TimeZonePtr = const time_zone*> // C++20
class zoned_time;
using zoned_seconds = zoned_time<seconds>; // C++20
template<class Duration1, class Duration2, class TimeZonePtr> // C++20
bool operator==(const zoned_time<Duration1, TimeZonePtr>& x,
const zoned_time<Duration2, TimeZonePtr>& y);

2
libcxx/modules/std/chrono.inc
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@ -233,9 +233,7 @@ export namespace std {
// [time.zone.zonedtime], class template zoned_time
using std::chrono::zoned_time;
# if 0
using std::chrono::zoned_seconds;
# endif // if 0
// [time.zone.leap], leap second support
using std::chrono::leap_second;

5
libcxx/test/std/time/time.zone/time.zone.zonedtime/types.compile.pass.cpp
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@ -23,6 +23,8 @@
// zoned_time& operator=(const zoned_time&) = default;
//
// };
//
// using zoned_seconds = zoned_time<seconds>;
#include <chrono>
#include <concepts>
@ -61,3 +63,6 @@ static_assert(!std::is_copy_constructible_v<std::chrono::zoned_time< std::chrono
static_assert(!std::is_move_constructible_v<std::chrono::zoned_time< std::chrono::days, std::unique_ptr<int>>>);
static_assert(!std::is_copy_assignable_v<std::chrono::zoned_time< std::chrono::days, std::unique_ptr<int>>>);
static_assert(!std::is_move_assignable_v<std::chrono::zoned_time< std::chrono::days, std::unique_ptr<int>>>);
// using zoned_seconds = zoned_time<seconds>;
static_assert(std::same_as<std::chrono::zoned_seconds, std::chrono::zoned_time<std::chrono::seconds>>);