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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  fer-
       ror(stream) becomes true, it returns WEOF.  If a wide-character conver-
       sion 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 indi-
       cate an error.

       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  cur-
       rent locale.

       In  the  absence of additional information passed to the fopen(3) call,
       it is reasonable to expect that fputwc() will actually write the multi-
       byte sequence corresponding to the wide character wc.

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

       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)

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