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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  fer‐
       ror(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 nonlocking counterparts, see unlocked_stdio(3).

       The  fgetwc()  function  returns the next wide-character from the stream, or WEOF.  In the
       event of an error, errno is set to indicate the cause.

       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 con‐
       vert it to a wide character.

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

       This page is part of release 3.74 of the Linux man-pages project.  A  description  of  the
       project,  information  about  reporting  bugs, and the latest version of this page, can be
       found at http://www.kernel.org/doc/man-pages/.

GNU                                         2013-04-19                                  FGETWC(3)

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