;;;; Programer: Kevin Rosenberg based on code by Peter Norvig
;;;; Date Started: 1 Nov 2001
;;;;
-;;;; $Id: base.lisp,v 1.5 2003/06/12 13:08:43 kevin Exp $
+;;;; $Id: base.lisp,v 1.6 2003/06/12 13:28:55 kevin Exp $
;;;;
;;;; This file is Copyright (c) 2001-2002 by Kevin M. Rosenberg
;;;; and Copyright (c) 1998-2002 Peter Norvig
(declare (type board board)
(type move move)
(type player player)
- (optimize speed (safety 0))
-)
+ (optimize speed (safety 0) (space 0)))
(if (= (bref board move) empty)
(block search
(let ((i 0))
(let ((c (+ move dir)))
(declare (type square c))
(and (= (the piece (bref board c)) (the player (opponent player)))
- (find-bracketing-piece (+ c dir) player board dir))))
+ (find-bracketing-piece (the fixnum (+ c dir)) player board dir))))
(defun find-bracketing-piece (square player board dir)
"Return the square number of the bracketing piece."