* Static partition forward ranges correctly.
In DevCom-1326903 the user reports that forward ranges, specifically `std::map` in their case, produce incorrect results from `std::equal`. After reducing to `forward_list` and debugging through, the problem is that when processing "unchunked items" we aren't giving those initial chunks their extra item, so the `std::equal` call fails fast whenever there are unchunked items.
Testing before didn't catch this because the values I chose of being around the thread count didn't account for the underlying infrastructure using `_Oversubscription_multiplier` which meant that the partitioning edge cases were not exercised (in most cases the parallel algorithms tests were testing only 1 element per chunk).
`<execution>` Add the missing `+1`. Note that this `+1` is the same `+1` in the random-access version on line 907.
`tests/std/include/parallel_algorithms_utilities.hpp`: Adjust the N constants to account for `_Oversubscription_multiplier`.
* Add `quadradic_complexity_case_limit` to prevent test cases from taking too long.
* Fix typos.
* `break` instead of `return`.
* Fix off-by-one error in handling of `remainingAttempts`.
* Implement the ABI plan from GH-1814
* Condition `<format>` and "`<chronat>`" on `__cpp_lib_format` instead of `__cpp_lib_concepts`.
* Condition the `view` concept - and everything that relies on it, including all of `<ranges>` - on `__cpp_lib_ranges` in addition to `__cpp_lib_concepts`.
* Add C++23 STL and testing infrastructure:
* Define `_HAS_CXX23` in `<yvals_core.h>`. We'll eventually want this to move into `<vcruntime.h>` so all `_HAS_CXXMEOW` definitions are nicely localized.
* `_HAS_CXX23` is defined to `1` iff `_HAS_CXX20 != 0` and `_MSVC_LANG` (if defined) or `__cplusplus` (otherwise) is greater than C++20's value of `202002L`. For Clang coverage, we'll have to manually define `_HAS_CXX23` to `1` until Clang updates their `__cplusplus` value for `/std:c++latest`.
* Rename `meow_concepts_woof.lst` to `meow_concepts_latest_woof.lst`.
* Update test matrices: Copy all `meow_latest_woof.lst` matrices to `meow_20_woof.lst`. Add `/std:c++20` coverage to the latter (still spelled `/std:c++latest` for Clang which doesn't grok `/std:c++20`) by duplicating the C++17 configs. `/std:c++latest` becomes C++23 mode (with additions of `/D_HAS_CXX23` for Clang).
* Replace uses of `meow_latest_woof.lst` with `meow_20_woof.lst`, except for a few tests that are only intended to have `latest` coverage, notably `include_each_header_alone` and all of `libcxx`.
* Only define `__cpp_lib_format` and `__cpp_lib_ranges` in C++23 mode. Update the feature-test macro test accordingly.
Co-authored-by: Casey Carter <cacarter@microsoft.com>
Co-authored-by: Charles Barto <barto.charlie@gmail.com>
Co-authored-by: Elnar Dakeshov <55715127+eldakesh-ms@users.noreply.github.com>
Co-authored-by: MattStephanson <68978048+MattStephanson@users.noreply.github.com>
Co-authored-by: Michael Schellenberger Costa <mschellenbergercosta@googlemail.com>
Co-authored-by: mnatsuhara <46756417+mnatsuhara@users.noreply.github.com>
Co-authored-by: S. B. Tam <cpplearner@outlook.com>
Co-authored-by: statementreply <statementreply@gmail.com>
Co-authored-by: Stephan T. Lavavej <stl@microsoft.com>
Update list of implemented proposals
I have verified that all 23 proposals and 35 LWG issues listed in #39 are implemented either on main, in #1436, or in #1731.
Fixes#39
Daniel Marshall
Casey Carter
Charles Milette
statementreply
Sibi Siddharthan
Wim Leflere
Michael Schellenberger Costa
Adam Bucior
Stephan T. Lavavej
Billy O'Neal
Bishwajeet Parhi
Victor Zverovich
futuarmo
Charlie Barto
Cameron DaCamara
mnatsuhara
Curtis J Bezault
Jonathan Caves
Steve Wishnousky
Jonathan Emmett