PUTWCHAR

putwchar − write a wide character to standard output

#include <wchar.h>

wint_t putwchar (wchar_t wc);

The putwchar function is the wide-character equivalent of the putchar function. It writes the wide character wc to stdout. If ferror(stdout) becomes true, it returns WEOF. If a wide character conversion error occurs, it sets errno to EILSEQ and returns WEOF. Otherwise it returns wc.

The putwchar function returns wc if no error occurred, or WEOF to indicate an error.

ISO/ANSI C, UNIX98

fputwc(3)

The behaviour of putwchar depends on the LC_CTYPE category of the current locale.

It is reasonable to expect that putwchar will actually write the multibyte sequence corresponding to the wide character wc.