[libcxx-commits] [libcxx] [libc++] Implement `<bit>` parts of P3793R2 Better shifting (PR #219389)

[Jan Schultke via libcxx-commits]

eisenwave wrote:

Ok yeah, it's definitely incorrect now. It was correct before the "fixes". I'm also realizing that the tests only cover signed shift amounts because they always use int, so that needs some more coverage.

https://github.com/llvm/llvm-project/pull/219389