Presence of standard (non Windows specific) C functions in headers

[BluTree]

Hello,
I recently began using your headers to escape the hell of Windows.h.
But when looking into misc.h, I noticed the presence of standard C functions, moreover not stripped from the macro shenanigans like all the others functions.
These are the standard mem functions: memcmp, memcpy, memset, memmove.
Is there a particular reason to have these functions inside misc.h, since it isn't windows specific related stuff ?

On a side note, some of the functions I wanted to use were missing in the headers, but I added them and will make a PR when I have the time.