[libcxx-commits] [libcxx] [libc++] Refactor memory allocation in basic_string (PR #128423)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne approved this pull request.

LGTM but we need to benchmark this to ensure it doesn't introduce a regression.

https://github.com/llvm/llvm-project/pull/128423