/*
* Copyright (c) 1992, 1993, 1994, 1995
* Carnegie Mellon University SCAL project:
* Guy Blelloch, Jonathan Hardwick, Jay Sipelstein, Marco Zagha
*
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION.  CARNEGIE MELLON AND THE SCAL PROJECT DISCLAIMS ANY 
* LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM 
* THE USE OF THIS SOFTWARE.
*
* The SCAL project requests users of this software to return to 
*
*  Guy Blelloch				nesl-contribute@cs.cmu.edu
*  School of Computer Science
*  Carnegie Mellon University
*  5000 Forbes Ave.
*  Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/