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Diffstat (limited to 'include/iprt/nocrt/float.h')
| -rw-r--r-- | include/iprt/nocrt/float.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/include/iprt/nocrt/float.h b/include/iprt/nocrt/float.h new file mode 100644 index 00000000..f0e8081d --- /dev/null +++ b/include/iprt/nocrt/float.h @@ -0,0 +1,131 @@ +/** @file + * IPRT / No-CRT - Our minimal float.h. + */ + +/* + * 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 + */ + +#ifndef IPRT_INCLUDED_nocrt_float_h +#define IPRT_INCLUDED_nocrt_float_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/types.h> + +/* + * Common. + */ +#define FLT_RADIX 2 + + +/* + * float + */ +#if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) || defined(RT_ARCH_ARM64) + +# define FLT_MAX (3.40282347E+38F) +# define FLT_MIN (1.17549435E-38F) +# define FLT_TRUE_MIN (1.40129846E-45F) +# define FLT_MAX_EXP (128) +# define FLT_MIN_EXP (-125) +# define FLT_MAX_10_EXP (38) +# define FLT_MIN_10_EXP (-37) +# define FLT_EPSILON (1.192092896E-07F) +# define FLT_DIG (6) +# define FLT_DECIMAL_DIG (9) +# define FLT_MANT_DIG (24) +# define FLT_HAS_SUBNORM (1) + +#endif + +/* + * double + */ +#if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) || defined(RT_ARCH_ARM64) + +# ifdef _MSC_VER +# define DBL_MAX (1.7976931348623158E+308) +# else +# define DBL_MAX (1.7976931348623157E+308) +# endif +# define DBL_MIN (2.2250738585072014E-308) +# define DBL_TRUE_MIN (4.9406564584124654E-324) +# define DBL_MAX_EXP (1024) +# define DBL_MIN_EXP (-1021) +# define DBL_MAX_10_EXP (308) +# define DBL_MIN_10_EXP (-307) +# define DBL_EPSILON (2.2204460492503131E-16) +# define DBL_DIG (15) +# define DBL_DECIMAL_DIG (17) +# define DBL_MANT_DIG (53) +# define DBL_HAS_SUBNORM (1) + +#endif + +/* + * long double + */ +#if ((defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64)) && defined(RT_OS_WINDOWS)) || defined(RT_ARCH_ARM64) /*?*/ + +# define LDBL_MAX DBL_MAX +# define LDBL_MIN DBL_MIN +# define LDBL_TRUE_MIN DBL_TRUE_MIN +# define LDBL_MAX_EXP DBL_MAX_EXP +# define LDBL_MIN_EXP DBL_MIN_EXP +# define LDBL_MAX_10_EXP DBL_MAX_10_EXP +# define LDBL_MIN_10_EXP DBL_MIN_10_EXP +# define LDBL_EPSILON DBL_EPSILON +# define LDBL_DIG DBL_DIG +# define LDBL_DECIMAL_DIG DBL_DECIMAL_DIG +# define LDBL_MANT_DIG DBL_MANT_DIG +# define LDBL_HAS_SUBNORM DBL_HAS_SUBNORM + +#elif defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) + +# define LDBL_MAX (1.1897314953572317650E+4932L) +# define LDBL_MIN (3.3621031431120935063E-4932L) +# define LDBL_TRUE_MIN (3.6451995318824746025E-4951L) +# define LDBL_MAX_EXP (-16381) +# define LDBL_MIN_EXP (16384) +# define LDBL_MAX_10_EXP (4932) +# define LDBL_MIN_10_EXP (-4931) +# define LDBL_EPSILON (1.0842021724855044340E-19L) +# define LDBL_DIG (18) +# define LDBL_DECIMAL_DIG (21) +# define LDBL_MANT_DIG (64) +# define LDBL_HAS_SUBNORM (1) + +#endif + + +#endif /* !IPRT_INCLUDED_nocrt_float_h */ + |