c - vsnprintf equivalent for wide strings on Posix based systems -


on mac os x (most unix based systems), vsnprintf return number of characters printed (not including trailing '\0' used end output strings) or if error occurs returns number of characters have been printed if n unlimited(again, not including final '\0').

on mac os x (most unix based systems), vswprintf() functions fail if n or more wide characters requested written. not return number of characters have been printed.

on windows, ee have below functions returns number of characters generated if string pointed list of arguments printed or sent file or buffer using specified formatting codes. _vsctprintf _vscprintf _vscwprintf _vsctprintf_p _vscprintf_p _vscwprintf_p

i not find alternative wide strings i.e of _vscwprintf. though _vscprintf can achieved using vsnprintf , passing null , 0 first 2 parameters.


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