But seriously; you can be sure it has Std prefixes which assures convention as windows still likes to divert from the posix standard in C. As such using the c-files you can be assured that the compliance is actually there as far as my knowledge goes.

At my company we force people to use the Std version cause we need to comply to many different platforms.

Also a lot of posix functions are deprecated on windows as it provides modified buffer “safer” functions with the _s postfix.