2 Commits

Author	SHA1	Message	Date
zibi2	6e6d266fb8	[libc++] Fix one case in saturate_cast.pass.cpp for 64-bit on z/OS (#86724) ... On z/OS int128 is disabled causing one of the cases in `saturate_cast.pass.cpp` to fail. The failure is only in 64-bit mode. In this case `the std::numeric_limits<long long int>::max()` is within `std::numeric_limits<unsigned long int>::min()` and `std::numeric_limits<unsigned long int>::max()` therefore, saturate_cast<unsigned long int>( sBigMax) == LONG_MAX and not ULONG_MAX as original test. In 32-bit, `saturate_cast<unsigned long int>( sBigMax) == ULONG_MAX` like on other platforms where int128 is enabled. This PR is required to pass this test case on z/OS and possibly on other platforms where int128 is not supported/enabled. --------- Co-authored-by: Sean Perry <perry@ca.ibm.com>	2024-03-27 09:50:25 -04:00
Hristo Hristov	03c19e91e8	[libc++][numeric] P0543R3: Saturation arithmetic (#77967) ... Implements: https://wg21.link/P0543R3 - https://eel.is/c++draft/numeric.sat Additional references: - Division: https://eel.is/c++draft/expr.mul#4 - Arithmetic conversions: https://eel.is/c++draft/expr.arith.conv#1 - Clang builtins: https://clang.llvm.org/docs/LanguageExtensions.html#builtin-functions Depends on: https://github.com/llvm/llvm-project/pull/78086 --------- Co-authored-by: Zingam <zingam@outlook.com> Co-authored-by: Mark de Wever <zar-rpg@xs4all.nl>	2024-01-22 06:57:45 +02:00