[jiggawatts]

More specifically, the 8-bit 'A'-suffixed functions could be used as UTF8, but only on some versions of Windows if, and only if, the system code page is set to use UTF8 instead of the Latin1 (or whatever).

[sqrt_1]

I don't think the system code page needs to be set? https://learn.microsoft.com/en-us/windows/apps/design/global...

https://learn.microsoft.com/en-us/cpp/c-runtime-library/refe...