diff options
Diffstat (limited to 'src/VBox/Runtime/common/math/copysignf.cpp')
-rw-r--r-- | src/VBox/Runtime/common/math/copysignf.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/math/copysignf.cpp b/src/VBox/Runtime/common/math/copysignf.cpp new file mode 100644 index 00000000..72d36823 --- /dev/null +++ b/src/VBox/Runtime/common/math/copysignf.cpp @@ -0,0 +1,63 @@ +/* $Id: copysignf.cpp $ */ +/** @file + * IPRT - No-CRT - copysignf(). + */ + +/* + * Copyright (C) 2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#define IPRT_NO_CRT_FOR_3RD_PARTY +#include "internal/nocrt.h" +#include <iprt/nocrt/math.h> +#include <iprt/assertcompile.h> + + +#undef copysignf +float RT_NOCRT(copysignf)(float r32Magnitude, float r32Sign) +{ + AssertCompile(sizeof(r32Magnitude) == sizeof(RTFLOAT32U)); +#ifndef RT_LITTLE_ENDIAN /* MSC outputs better code for the alternative below. */ + RTFLOAT32U uRet, uSign; + uSign.r = r32Sign; + uRet.r = r32Magnitude; + uRet.s.fSign = uSign.s.fSign; +#else + RTFLOAT32U uRet; + uRet.u = (*((uint32_t const *)&r32Magnitude) & (RT_BIT_32(31) - 1U)) | (*((uint32_t const *)&r32Sign) & RT_BIT_32(31)); +#endif + return uRet.r; +} +RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(copysignf); + |