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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 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

       C99, POSIX.1-2001.

       The  behavior  of fgetwc() 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 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 3.74 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

GNU                               2013-04-19                         FGETWC(3)

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