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FWIDE
!!!FWIDE
NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
CONFORMING TO
SEE ALSO
NOTES
----
!!NAME


fwide - set and determine the orientation of a FILE stream
!!SYNOPSIS


__#include
__ ''stream''__, int__ ''mode''__);
__
!!DESCRIPTION


When ''mode'' is zero, the __fwide__ function
determines the current orientation of ''stream''. It
returns a value ''stream'' is wide-character
oriented, i.e. if wide character I/O is permitted but char
I/O is disallowed. It returns a value
''stream'' is byte oriented, i.e. if char I/O is
permitted but wide character I/O is disallowed. It returns
zero if ''stream'' has no orientation yet; in this case
the next I/O operation might change the orientation (to byte
oriented if it is a char I/O operation, or to wide-character
oriented if it is a wide character I/O
operation).


Once a stream has an orientation, it cannot be changed and
persists until the stream is closed.


When ''mode'' is non-zero, the __fwide__ function
first attempts to set ''stream'''s orientation (to
wide-character oriented if ''mode''
''mode''
''
!!RETURN VALUE


The __fwide__ function returns the stream's orientation,
after possibly changing it. A return value
__
!!CONFORMING TO


ISO/ANSI C, UNIX98
!!SEE ALSO


fprintf(3), fwprintf(3)
!!NOTES


Wide-character output to a byte oriented stream can be
performed through the __fprintf__ function with the %lc
and %ls directives.


Char oriented output to a wide-character oriented stream can
be performed through the __fwprintf__ function with the
%c and %s directives.
----

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Last edited on Tuesday, June 4, 2002 12:24:21 am by "perry"

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