All non-existing local times in a contiguous range should map to the
same time point. This fixes a bug, were the times inside the range were
mapped to the wrong time.
Fixes: #113654
This is a continuation of what's been started in #89178.
As a drive-by, this also changes the PSTL macro to say `EXPERIMENTAL`
instead of `INCOMPLETE`.
This implements the throwing overload and the exception classes throw by
this overload.
Implements parts of:
- P0355 Extending chrono to Calendars and Time Zones
Adds the sys_info class and time_zone::get_info(). The code still has a
few quirks and has not been optimized for performance yet.
The returned sys_info is compared against the output of the zdump tool
in the test giving confidence the implementation is correct.
Implements parts of:
- P0355 Extending <chrono> to Calendars and Time Zones
Implements:
- LWGXXXX The sys_info range should be affected by save
This implements the loading of the tzdata.zi file and store its contents
in the tzdb struct.
This adds all required members except:
- the leap seconds,
- the locate_zone, and
- current_zone.
The class time_zone is incomplete and only contains the parts needed for
storing the parsed data.
The class time_zone_link is fully implemented including its non-member
functions.
Implements parts of:
- P0355 Extending <chrono> to Calendars and Time Zones
- P1614 The Mothership has Landed
Implements:
- P1982 Rename link to time_zone_link
