/***********************************************************************
* Copyright 1990-1994 by Purdue University, J. Tim Korb, and Richard Bingle.
* All rights reserved.  Some individual files may be covered by other 
* copyrights.
* 
* Redistribution and use in source and binary forms are permitted
* provided that this entire copyright notice is duplicated in all such
* copies, and that any documentation, announcements, and other
* materials related to such distribution and use acknowledge that the
* software was developed at Purdue University, W. Lafayette, IN.  
* Neither the name of the University nor the name of the authors may 
* be used to endorse or promote products derived from this material without 
* specific prior written permission.  
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTIBILITY AND FITNESS FOR ANY PARTICULAR PURPOSE.
************************************************************************/