0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/* $NetBSD: s_copysignl.c,v 1.5 2015/05/14 19:26:12 joerg Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: s_copysignl.c,v 1.5 2015/05/14 19:26:12 joerg Exp $");
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#include "namespace.h"
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#include <math.h>
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#include <machine/ieee.h>
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#if defined(__HAVE_LONG_DOUBLE) || defined(__HAVE_IBM_LONGDOUBLE)
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#ifdef __weak_alias
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__weak_alias(copysignl, _copysignl)
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#endif
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/*
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* copysignl(long double x, long double y)
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* This function returns a value with the magnitude of x and the sign of y.
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*/
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#ifdef EXT_EXP_INFNAN
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long double
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copysignl(long double x, long double y)
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{
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union ieee_ext_u ux, uy;
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ux.extu_ld = x;
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uy.extu_ld = y;
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ux.extu_ext.ext_sign = uy.extu_ext.ext_sign;
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return (ux.extu_ld);
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}
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#elif defined(__HAVE_IBM_LONGDOUBLE)
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long double
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copysignl(long double x, long double y)
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{
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union ldbl_u ux, uy;
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ux.ldblu_ld = x;
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uy.ldblu_ld = y;
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ux.ldblu_d[0] = copysign(ux.ldblu_d[0], uy.ldblu_d[0]);
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ux.ldblu_d[1] = copysign(ux.ldblu_d[1], uy.ldblu_d[1]);
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return ux.ldblu_ld;
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}
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#endif
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#endif /* __HAVE_LONG_DOUBLE || __HAVE_IBM_LONGDOUBLE */
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