[libc-commits] [libc] [libc][NFC] fix int warnings in float conversion (PR #74379)

[Nick Desaulniers via libc-commits]

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

thanks for the changes. I don't feel strongly about the remaining comments; feel free to address them or not.

https://github.com/llvm/llvm-project/pull/74379