[libc-commits] [libc] [llvm] [libc][math][c++23] Add log10bf16 math function (PR #177269)

[via libc-commits]

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

LGTM too with the  small nit `log10bf16test` instead of `logbf16test` in smoke test files.

https://github.com/llvm/llvm-project/pull/177269