1 # $NetBSD: hanoi.m4,v 1.4 1995/09/28 05:37:56 tls Exp $ 2 # 3 # Copyright (c) 1989, 1993 4 # The Regents of the University of California. All rights reserved. 5 # 6 # This code is derived from software contributed to Berkeley by 7 # Ozan Yigit. 8 # 9 # Redistribution and use in source and binary forms, with or without 10 # modification, are permitted provided that the following conditions 11 # are met: 12 # 1. Redistributions of source code must retain the above copyright 13 # notice, this list of conditions and the following disclaimer. 14 # 2. Redistributions in binary form must reproduce the above copyright 15 # notice, this list of conditions and the following disclaimer in the 16 # documentation and/or other materials provided with the distribution. 17 # 3. All advertising materials mentioning features or use of this software 18 # must display the following acknowledgement: 19 # This product includes software developed by the University of 20 # California, Berkeley and its contributors. 21 # 4. Neither the name of the University nor the names of its contributors 22 # may be used to endorse or promote products derived from this software 23 # without specific prior written permission. 24 # 25 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 # SUCH DAMAGE. 36 # 37 # @(#)hanoi.m4 8.1 (Berkeley) 6/6/93 38 # 39 40 define(hanoi, `trans(A, B, C, $1)') 41 42 define(moved,`move disk from $1 to $2 43 ') 44 45 define(trans, `ifelse($4,1,`moved($1,$2)', 46 `trans($1,$3,$2,DECR($4))moved($1,$2)trans($3,$2,$1,DECR($4))')') 47