[libcxx-commits] [libcxx] [libc++] Optimize standard streams with sync_with_stdio(false) (PR #209161)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

> I added some more test coverage (first draft with Claude, then reviewed and modified).
> 
> LGTM now, but please have a look and let me know if you're OK with the added test coverage.

Yeah, looks reasonable.

https://github.com/llvm/llvm-project/pull/209161