fwide(3C)																 fwide(3C)

NAME

       fwide() - set stream orientation

SYNOPSIS

DESCRIPTION

       The  function  determines the orientation of the stream pointed to by stream.  If mode is greater than zero, the function first attempts to
       make the stream wide-oriented.  If mode is less than zero, the function first attempts to make the stream byte-oriented.   Otherwise,  mode
       is zero and the function does not alter the orientation of the stream.

       If  the	orientation  of  the  stream  has already been determined, does not change it.	Because no return value is reserved to indicate an
       error, an application wishing to check for error situations should set to 0, then call then check and if it is non-zero,  assume  an  error
       has occurred.

APPLICATION USAGE

       A call to with mode set to 0 can be used to determine the current orientation of a stream.

       The prototype of this function is available to applications if they are:

	      a. conformant.

	      b. Compiled with macro with a value >=500.

	      c. Compiled with macro with a value >= 200112.

RETURN VALUE

       The  function  returns  a value greater than zero if, after the call, the stream has wide-orientation, a value less than zero if the stream
       has byte-orientation, or zero if the stream has no orientation.

ERRORS

       The function may fail if:

       The	      stream argument is not a valid stream.

AUTHOR

       was developed by HP and Mitsubishi Electric Corporation.

SEE ALSO

       orientation(5), thread_safety(5).

																	 fwide(3C)