fwide man page on OpenIndiana

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fwide(3C)		 Standard C Library Functions		     fwide(3C)

NAME
       fwide - set stream orientation

SYNOPSIS
       #include <stdio.h>
       #include <wchar.h>

       int fwide(FILE *stream, int mode);

DESCRIPTION
       The  fwide()  function determines the orientation of the stream pointed
       to by stream. If mode is greater than 0, the function first attempts to
       make  the stream wide-orientated.  If mode is less than 0, the function
       first attempts to make the stream byte-orientated.  Otherwise, mode  is
       0 and the function does not alter the orientation of the stream.

       If  the	orientation of the stream has already been determined, fwide()
       does not change it.

       Because no return value is reserved to indicate an error,  an  applica‐
       tion  wishing to check for error situations should set errno to 0, then
       call fwide(), then check errno and if it is non-zero, assume  an	 error
       has occurred.

RETURN VALUES
       The fwide() function returns a value greater than 0 if, after the call,
       the stream has wide-orientation, a value less than 0 if the stream  has
       byte-orientation, or 0 if the stream has no orientation.

ERRORS
       The fwide() function may fail if:

       EBADF	The stream argument is not a valid stream.

USAGE
       A call to fwide() with  mode set to 0 can be used to determine the cur‐
       rent orientation of a stream.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Committed			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │MT-Safe			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Standard		     │See standards(5).		   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       attributes(5), standards(5)

SunOS 5.11			  24 Jul 2002			     fwide(3C)
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