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

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

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

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

       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).

       The  fputwc()  function returns wc if no error occurred, or WEOF to indicate an error.  In
       the event of an error, errno is set to indicate the cause.

       Apart from the usual ones, there is

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

       C99, POSIX.1-2001.

       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.

       fgetwc(3), fputws(3), unlocked_stdio(3)

       This page is part of release 3.55 of the Linux man-pages project.  A  description  of  the
       project,     and    information	  about    reporting	bugs,	 can	be    found    at

GNU					    2013-04-19					FPUTWC(3)
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