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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 non-locking 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 2.77 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/.