Deduction guides for std::chrono::zoned_time

 

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Date and time library

Time point time_point (C++11) clock_time_conversion (C++20)   clock_cast (C++20) Duration duration (C++11) Clocks system_clock (C++11) steady_clock (C++11) is_clock (C++20) utc_clock (C++20) tai_clock (C++20) high_resolution_clock (C++11) gps_clock (C++20) file_clock (C++20) local_t (C++20) Time of day is_amis_pm (C++20)(C++20) make12make24 (C++20)(C++20) hh_mm_ss (C++20)

Calendar day (C++20) month (C++20) year (C++20) weekday (C++20) operator/ (C++20) year_month_day (C++20) year_month_day_last (C++20) year_month_weekday (C++20) year_month_weekday_last (C++20)   weekday_indexed (C++20) weekday_last (C++20) month_day (C++20) month_day_last (C++20) month_weekday (C++20) month_weekday_last (C++20) year_month (C++20) last_speclast (C++20)(C++20) chrono I/O parse (C++20)

Time zone tzdb (C++20) tzdb_list (C++20) get_tzdbget_tzdb_listreload_tzdbremote_version (C++20)(C++20)(C++20)(C++20) sys_info (C++20) local_info (C++20) nonexistent_local_time (C++20) ambiguous_local_time (C++20) locate_zone (C++20) current_zone (C++20) time_zone (C++20) choose (C++20) zoned_traits (C++20) zoned_time (C++20) time_zone_link (C++20) leap_second (C++20) leap_second_info (C++20) get_leap_second_info (C++20) C-style date and time

 

std::chrono::zoned_time

Member functions

zoned_time::zoned_time

zoned_time::operator=

zoned_time::get_time_zone

zoned_time::get_sys_timezoned_time::operator sys_time

zoned_time::get_local_timezoned_time::operator local_time

zoned_time::get_info

Nonmember functions

operator==

operator<<

Helper classes

formatter<std::chrono::zoned_time>

hash<std::chrono::zoned_time> (C++26)

Deduction guides

 

zoned_time() -> zoned_time<std::chrono::seconds>;	(1)	(since C++20)
template< class Duration > zoned_time( std::chrono::sys_time<Duration> )     -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>>;	(2)	(since C++20)
template< class TimeZonePtrOrName > zoned_time( TimeZonePtrOrName&& ) -> zoned_time<std::chrono::seconds, /* see below */>;	(3)	(since C++20)
template< class TimeZonePtrOrName, class Duration > zoned_time( TimeZonePtrOrName&&, std::chrono::sys_time<Duration> )     -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>, /* see below */>;	(4)	(since C++20)
template< class TimeZonePtrOrName, class Duration > zoned_time( TimeZonePtrOrName&&, std::chrono::local_time<Duration>,             std::chrono::choose = std::chrono::choose::earliest )     -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>, /* see below */>;	(5)	(since C++20)
template< class TimeZonePtrOrName, class Duration, class TimeZonePtr2 > zoned_time( TimeZonePtrOrName&&, std::chrono::zoned_time<Duration, TimeZonePtr2>,             std::chrono::choose = std::chrono::choose::earliest )     -> zoned_time<std::common_type_t<Duration, std::chrono::seconds>, /* see below */>;	(6)	(since C++20)

These deduction guides normalize Duration to a minimum resolution of std::chrono::seconds, and provide correct handling for time zone names specified using types convertible to std::string_view.

3-6) If std::is_convertible_v<TimeZonePtrOrName, std::string_view> is true, the deduced second template argument is const std::chrono::time_zone*. Otherwise it is std::remove_cvref_t<TimeZonePtrOrName>.

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