[all-commits] [llvm/llvm-project] 1fda17: [libc++][chrono] Adds the sys_info class. (#85619)

[Mark de Wever via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1fda1776e32b5582bfcfcbd8094f3c280d936cec
      https://github.com/llvm/llvm-project/commit/1fda1776e32b5582bfcfcbd8094f3c280d936cec
  Author: Mark de Wever <koraq at xs4all.nl>
  Date:   2024-04-10 (Wed, 10 Apr 2024)

  Changed paths:
    M libcxx/docs/Status/Cxx2cIssues.csv
    M libcxx/include/CMakeLists.txt
    A libcxx/include/__chrono/sys_info.h
    M libcxx/include/__chrono/time_zone.h
    M libcxx/include/chrono
    M libcxx/include/libcxx.imp
    M libcxx/include/module.modulemap
    M libcxx/modules/std/chrono.inc
    M libcxx/src/include/tzdb/time_zone_private.h
    M libcxx/src/include/tzdb/types_private.h
    M libcxx/src/time_zone.cpp
    M libcxx/src/tzdb.cpp
    M libcxx/test/libcxx/diagnostics/chrono.nodiscard_extensions.compile.pass.cpp
    M libcxx/test/libcxx/diagnostics/chrono.nodiscard_extensions.verify.cpp
    A libcxx/test/libcxx/time/time.zone/time.zone.timezone/time.zone.members/get_info.sys_time.pass.cpp
    A libcxx/test/libcxx/time/time.zone/time.zone.timezone/time.zone.members/get_info.sys_time.rule_selection.pass.cpp
    M libcxx/test/libcxx/transitive_includes/cxx23.csv
    M libcxx/test/libcxx/transitive_includes/cxx26.csv
    A libcxx/test/std/time/time.zone/time.zone.info/time.zone.info.sys/sys_info.members.pass.cpp
    A libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/get_info.sys_time.pass.cpp
    A libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/sys_info.zdump.pass.cpp
    M libcxx/utils/libcxx/test/features.py

  Log Message:
  -----------
  [libc++][chrono] Adds the sys_info class. (#85619)

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



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