[libcxx-commits] [libcxx] [libc++][ranges] optimize the performance of `ranges::starts_with` (PR #84570)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@xiaoyang-sde There's a bit of review feedback to apply, but otherwise I think this is good to go. Do you think you're able to pick this up and make the last few requested changes?

https://github.com/llvm/llvm-project/pull/84570