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
       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 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	 cur-
       rent 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)