1*aeb694e3Smartynas /* $OpenBSD: fabs.c,v 1.7 2011/07/08 22:28:33 martynas Exp $ */ 2*aeb694e3Smartynas /* 3*aeb694e3Smartynas * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org> 4*aeb694e3Smartynas * 5*aeb694e3Smartynas * Permission to use, copy, modify, and distribute this software for any 6*aeb694e3Smartynas * purpose with or without fee is hereby granted, provided that the above 7*aeb694e3Smartynas * copyright notice and this permission notice appear in all copies. 8*aeb694e3Smartynas * 9*aeb694e3Smartynas * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10*aeb694e3Smartynas * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11*aeb694e3Smartynas * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12*aeb694e3Smartynas * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13*aeb694e3Smartynas * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14*aeb694e3Smartynas * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15*aeb694e3Smartynas * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16*aeb694e3Smartynas */ 17*aeb694e3Smartynas 18*aeb694e3Smartynas #include <sys/cdefs.h> 19*aeb694e3Smartynas #include <sys/types.h> 20*aeb694e3Smartynas #include <machine/ieee.h> 21*aeb694e3Smartynas 22*aeb694e3Smartynas /* 23*aeb694e3Smartynas * fabs(d) returns the absolute value of d. 24*aeb694e3Smartynas */ 25*aeb694e3Smartynas double 26*aeb694e3Smartynas fabs(double d) 27*aeb694e3Smartynas { 28*aeb694e3Smartynas struct ieee_double *p = (struct ieee_double *)&d; 29*aeb694e3Smartynas 30*aeb694e3Smartynas p->dbl_sign = 0; 31*aeb694e3Smartynas 32*aeb694e3Smartynas return(d); 33*aeb694e3Smartynas } 34*aeb694e3Smartynas 35*aeb694e3Smartynas __weak_alias(fabsl, fabs); 36