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 ferror(stream) 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  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 actu-
       ally 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 3.25 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)