fputwc, putwc - write a wide character to a FILE stream
The fputwc() function is the wide-character
equivalent of the fputc(3) function. It writes the wide
becomes true, it returns WEOF. If a wide-character
conversion error occurs, it sets
EILSEQ and returns WEOF. Otherwise, it
For nonlocking counterparts, see unlocked_stdio(3).
The fputwc() function returns
wc if no
error occurred, or WEOF to indicate an error. In the
event of an error,
errno is set to indicate the cause.
Apart from the usual ones, there is
wc to the stream's encoding fails.
POSIX.1-2001, POSIX.1-2008, C99.
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