putwc

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



NAME
       fputwc - 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 func-
       tion. 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 non-locking counterparts, see unlocked_stdio(3).

RETURN VALUE
       The  fputwc  function returns wc if no error occurred, or WEOF to indi-
       cate an error.

ERRORS
       Apart from the usual ones, there is

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

CONFORMING TO
       ISO/ANSI C, UNIX98

NOTES
       The behaviour of fputwc depends on the LC_CTYPE category of the current
       locale.

       In  the  absence of additional information passed to the fopen 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)



GNU                               1999-07-25                         FPUTWC(3)