debian man page for fputwc

FPUTWC(3)						     Linux Programmer's Manual							 FPUTWC(3)

NAME
       fputwc, putwc - write a wide character to a FILE stream

SYNOPSIS
       #include <stdio.h>
       #include <wchar.h>

       wint_t fputwc(wchar_t wc, FILE *stream);
       wint_t putwc(wchar_t wc, FILE *stream);

DESCRIPTION
       The  fputwc()  function	is  the  wide-character  equivalent of the fputc(3) function.  It writes the wide character wc to stream.  If fer-
       ror(stream) becomes true, it returns WEOF.  If a wide-character conversion error occurs, it sets errno to EILSEQ and returns WEOF.   Other-
       wise it returns wc.

       The putwc() function or macro functions identically to fputwc().  It may be implemented as a macro, and may evaluate its argument more than
       once.  There is no reason ever to use it.

       For nonlocking counterparts, see unlocked_stdio(3).

RETURN VALUE
       The fputwc() function returns wc if no error occurred, or WEOF to indicate an error.

ERRORS
       Apart from the usual ones, there is

       EILSEQ Conversion of wc to the stream's encoding fails.

CONFORMING TO
       C99, POSIX.1-2001.

NOTES
       The behavior of fputwc() depends on the LC_CTYPE category of the current locale.

       In the absence of additional information passed to the fopen(3) call, it is reasonable to expect that  fputwc()	will  actually	write  the
       multibyte sequence corresponding to the wide character wc.

SEE ALSO
       fgetwc(3), fputws(3), unlocked_stdio(3)

COLOPHON
       This  page is part of release 3.44 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

GNU
								    1999-07-25								 FPUTWC(3)