int
fwide(
FILE *stream
, int mode
)
)
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.
)
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.
)
function
conforms to
ISO/IEC 9899:1999 (``ISO C99'') .