| NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | CONFORMING TO | NOTES | SEE ALSO | COLOPHON | The Linux Programming Interface |
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.
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 3.32 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 1999-07-25 FGETWC(3)
HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface