12357939bSOlivier Houchard /* $NetBSD: fabs.c,v 1.2 2002/05/26 11:48:01 wiz Exp $ */ 22357939bSOlivier Houchard 3*df57947fSPedro F. Giffuni /*- 4*df57947fSPedro F. Giffuni * SPDX-License-Identifier: BSD-4-Clause 5*df57947fSPedro F. Giffuni * 62357939bSOlivier Houchard * Copyright (c) 1996 Mark Brinicombe 72357939bSOlivier Houchard * 82357939bSOlivier Houchard * Redistribution and use in source and binary forms, with or without 92357939bSOlivier Houchard * modification, are permitted provided that the following conditions 102357939bSOlivier Houchard * are met: 112357939bSOlivier Houchard * 1. Redistributions of source code must retain the above copyright 122357939bSOlivier Houchard * notice, this list of conditions and the following disclaimer. 132357939bSOlivier Houchard * 2. Redistributions in binary form must reproduce the above copyright 142357939bSOlivier Houchard * notice, this list of conditions and the following disclaimer in the 152357939bSOlivier Houchard * documentation and/or other materials provided with the distribution. 162357939bSOlivier Houchard * 3. All advertising materials mentioning features or use of this software 172357939bSOlivier Houchard * must display the following acknowledgement: 182357939bSOlivier Houchard * This product includes software developed by Mark Brinicombe 192357939bSOlivier Houchard * 4. Neither the name of the University nor the names of its contributors 202357939bSOlivier Houchard * may be used to endorse or promote products derived from this software 212357939bSOlivier Houchard * without specific prior written permission. 222357939bSOlivier Houchard * 232357939bSOlivier Houchard * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 242357939bSOlivier Houchard * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 252357939bSOlivier Houchard * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 262357939bSOlivier Houchard * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 272357939bSOlivier Houchard * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 282357939bSOlivier Houchard * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 292357939bSOlivier Houchard * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 302357939bSOlivier Houchard * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 312357939bSOlivier Houchard * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 322357939bSOlivier Houchard * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 332357939bSOlivier Houchard * SUCH DAMAGE. 342357939bSOlivier Houchard */ 352357939bSOlivier Houchard 362357939bSOlivier Houchard /* 372357939bSOlivier Houchard * fabs(x) returns the absolute value of x. 382357939bSOlivier Houchard */ 392357939bSOlivier Houchard #include <sys/cdefs.h> 402357939bSOlivier Houchard __FBSDID("$FreeBSD$"); 412357939bSOlivier Houchard 422357939bSOlivier Houchard double 432357939bSOlivier Houchard fabs(double x) 442357939bSOlivier Houchard { 452357939bSOlivier Houchard if (x < 0) 462357939bSOlivier Houchard x = -x; 472357939bSOlivier Houchard return(x); 482357939bSOlivier Houchard } 49