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RedHat 9 (Linux i386) - man page for getwc (redhat section 3)

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

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

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 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 non-locking counterparts, see unlocked_stdio(3).

RETURN VALUE
       The fgetwc function returns the next wide-character from the stream, or WEOF.

ERRORS
       Apart from the usual ones, there is

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

CONFORMING TO
       ISO/ANSI C, UNIX98

NOTES
       The behaviour of fgetwc depends on the LC_CTYPE category of the current locale.

       In  the	absence  of  additional information passed to the fopen 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.

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

GNU					    1999-07-25					FGETWC(3)


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