getwc


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

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

DESCRIPTION
       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).

RETURN VALUE
       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.

ERRORS
       Apart from the usual ones, there is

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

CONFORMING TO
       C99, POSIX.1-2001.

NOTES
       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.

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

COLOPHON
       This page is part of release 3.54 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                               2013-04-19                         FGETWC(3)
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