putwc - Write wide character to a file

Definition

#include <wchar.h> #include <stdio.h> wint_t putwc(wchar_t wc, FILE *fp); putwc is equivalent to the fputwc function, except for the following difference: when putwc is implemented as a macro, it can evaluate fp more than once, so the argument should never be an expression with side effects. For this reason, it is better to use the fputwc function instead of putwc, especially in cases such as putwc( wc, *f++). Description: see fputwc.