# $OpenBSD: sqroot.m4,v 1.2 1996/06/26 05:36:20 deraadt Exp $ # $NetBSD: sqroot.m4,v 1.4 1995/09/28 05:38:01 tls Exp $ # # Copyright (c) 1989, 1993 # The Regents of the University of California. All rights reserved. # # This code is derived from software contributed to Berkeley by # Ozan Yigit. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # 3. Neither the name of the University nor the names of its contributors # may be used to endorse or promote products derived from this software # without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # # $FreeBSD: src/usr.bin/m4/TEST/sqroot.m4,v 1.3 2012/11/17 01:54:24 svnexp Exp $ # # @(#)sqroot.m4 8.1 (Berkeley) 6/6/93 # define(square_root, `ifelse(eval($1<0),1,negative-square-root, `square_root_aux($1, 1, eval(($1+1)/2))')') define(square_root_aux, `ifelse($3, $2, $3, $3, eval($1/$2), $3, `square_root_aux($1, $3, eval(($3+($1/$3))/2))')')