1# $OpenBSD: hanoi.m4,v 1.2 1996/06/26 05:36:19 deraadt Exp $ 2# $NetBSD: hanoi.m4,v 1.4 1995/09/28 05:37:56 tls Exp $ 3# 4# Copyright (c) 1989, 1993 5# The Regents of the University of California. All rights reserved. 6# 7# This code is derived from software contributed to Berkeley by 8# Ozan Yigit. 9# 10# Redistribution and use in source and binary forms, with or without 11# modification, are permitted provided that the following conditions 12# are met: 13# 1. Redistributions of source code must retain the above copyright 14# notice, this list of conditions and the following disclaimer. 15# 2. Redistributions in binary form must reproduce the above copyright 16# notice, this list of conditions and the following disclaimer in the 17# documentation and/or other materials provided with the distribution. 18# 3. All advertising materials mentioning features or use of this software 19# must display the following acknowledgement: 20# This product includes software developed by the University of 21# California, Berkeley and its contributors. 22# 4. Neither the name of the University nor the names of its contributors 23# may be used to endorse or promote products derived from this software 24# without specific prior written permission. 25# 26# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36# SUCH DAMAGE. 37# 38# @(#)hanoi.m4 8.1 (Berkeley) 6/6/93 39# 40 41define(hanoi, `trans(A, B, C, $1)') 42 43define(moved,`move disk from $1 to $2 44') 45 46define(trans, `ifelse($4,1,`moved($1,$2)', 47 `trans($1,$3,$2,DECR($4))moved($1,$2)trans($3,$2,$1,DECR($4))')') 48