NAME
fwide —
get/set orientation of a
stream
LIBRARY
library “libc”
SYNOPSIS
#include <stdio.h>
#include <wchar.h>
int
fwide(FILE
*stream, int
mode);
DESCRIPTION
Thefwide()
function determines the orientation of the stream pointed at by
stream.
If the orientation of stream
has already been determined,
fwide()
leaves it unchanged. Otherwise, fwide() sets the
orientation of stream according to
mode.
If mode is less than zero, stream is set to byte-oriented. If it is greater than zero, stream is set to wide-oriented. Otherwise, mode is zero, and stream is unchanged.
RETURN VALUES
fwide() returns a value according to
orientation after the call of fwide(); a value less
than zero if byte-oriented, a value greater than zero if wide-oriented, and
zero if the stream has no orientation.
SEE ALSO
ferror(3), fgetc(3), fgetwc(3), fopen(3), fputc(3), fputwc(3), freopen(3), stdio(3)
STANDARDS
The fwide() function conforms to
ISO/IEC 9899:1999
(“ISO C99”).