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

       fgetwc, getwc - read a wide character from a FILE stream

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

       wint_t fgetwc(FILE *stream);
       wint_t getwc(FILE *stream);

       The  fgetwc()  function  is  the wide-character equivalent of the fgetc(3) function.  It reads a wide character
       from stream and returns it.  If the end of stream is reached, or if ferror(stream)  becomes  true,  it  returns
       WEOF.  If a wide-character conversion error occurs, it sets errno to EILSEQ and returns WEOF.

       The  getwc()  function  or  macro functions identically to fgetwc().  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).

       The fgetwc() function returns the next wide-character from the stream, or WEOF.

       Apart from the usual ones, there is

       EILSEQ The data obtained from the input stream does not form a valid character.

       C99, POSIX.1-2001.

       The behavior of fgetwc() 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  fgetwc()
       will actually read a multibyte sequence from the stream and then convert it to a wide character.

       fgetws(3), fputwc(3), ungetwc(3), unlocked_stdio(3)

       This  page  is part of release 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at

GNU                               1999-07-25                         FGETWC(3)