/************************************************************************
 *  Copyright (C) 1989 by Mark B. Phillips and William M. Goldman       *
 * 									*
 * Permission to use, copy, modify, and distribute this software and	*
 * its documentation for any purpose and without fee is hereby		*
 * granted, provided that the above copyright notice appear in all	*
 * copies and that both that copyright notice and this permission	*
 * notice appear in supporting documentation, and that the names of	*
 * Mark B. Phillips, William M. Goldman, or the University of Maryland	*
 * not be used in advertising or publicity pertaining to distribution	*
 * of the software without specific, written prior permission.  This	*
 * software is provided "as is" without express or implied warranty.	*
 ************************************************************************/
