[libc-commits] [libc] [libc] Provide isnan, isnanf and isnanl functions (PR #96008)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

Got it, thanks for the context @enh-google . In that case, @petrhosek please add tests, but for isnan it sounds like we should test the function AND the macro?

https://github.com/llvm/llvm-project/pull/96008