Module Name: src Committed By: matt Date: Fri Sep 10 16:32:35 UTC 2010
Added Files: src/lib/libc/gen: fabs_ieee754.c Log Message: Resurrect this for MIPS softfloat. To generate a diff of this commit: cvs rdiff -u -r0 -r1.2 src/lib/libc/gen/fabs_ieee754.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Added files: Index: src/lib/libc/gen/fabs_ieee754.c diff -u /dev/null src/lib/libc/gen/fabs_ieee754.c:1.2 --- /dev/null Fri Sep 10 16:32:35 2010 +++ src/lib/libc/gen/fabs_ieee754.c Fri Sep 10 16:32:35 2010 @@ -0,0 +1,54 @@ +/* $NetBSD: fabs_ieee754.c,v 1.2 2010/09/10 16:32:35 matt Exp $ */ + +/*- + * Copyright (c) 2003 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Klaus Klein. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +#include <sys/cdefs.h> +#if defined(LIBC_SCCS) && !defined(lint) +__RCSID("$NetBSD: fabs_ieee754.c,v 1.2 2010/09/10 16:32:35 matt Exp $"); +#endif + +#include <machine/ieee.h> +#include <math.h> + +/* + * 7.12.3.6 fabs - return the absolute value of the argument + * IEEE 754 double-precision version + */ +double +fabs(double x) +{ + union ieee_double_u u; + + u.dblu_d = x; + + u.dblu_dbl.dbl_sign = 0; + + return u.dblu_d; +}