| 1 | /** @file
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| 2 | * IPRT / No-CRT - Our minimal float.h.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2022 Oracle Corporation
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.virtualbox.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License (GPL) as published by the Free Software
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| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | *
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| 16 | * The contents of this file may alternatively be used under the terms
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| 17 | * of the Common Development and Distribution License Version 1.0
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| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 19 | * VirtualBox OSE distribution, in which case the provisions of the
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| 20 | * CDDL are applicable instead of those of the GPL.
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| 21 | *
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| 22 | * You may elect to license modified versions of this file under the
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| 23 | * terms and conditions of either the GPL or the CDDL or both.
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| 24 | */
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| 25 |
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| 26 | #ifndef IPRT_INCLUDED_nocrt_float_h
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| 27 | #define IPRT_INCLUDED_nocrt_float_h
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| 28 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 29 | # pragma once
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| 30 | #endif
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| 31 |
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| 32 | #include <iprt/types.h>
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| 33 |
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| 34 | /*
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| 35 | * Common.
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| 36 | */
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| 37 | #define FLT_RADIX 2
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| 38 |
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| 39 |
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| 40 | /*
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| 41 | * float
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| 42 | */
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| 43 | #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) || defined(RT_ARCH_ARM64)
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| 44 |
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| 45 | # define FLT_MAX (3.40282347E+38F)
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| 46 | # define FLT_MIN (1.17549435E-38F)
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| 47 | # define FLT_TRUE_MIN (1.40129846E-45F)
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| 48 | # define FLT_MAX_EXP (128)
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| 49 | # define FLT_MIN_EXP (-125)
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| 50 | # define FLT_MAX_10_EXP (38)
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| 51 | # define FLT_MIN_10_EXP (-37)
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| 52 | # define FLT_EPSILON (1.192092896E-07F)
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| 53 | # define FLT_DIG (6)
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| 54 | # define FLT_DECIMAL_DIG (9)
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| 55 | # define FLT_MANT_DIG (24)
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| 56 | # define FLT_HAS_SUBNORM (1)
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| 57 |
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| 58 | #endif
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| 59 |
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| 60 | /*
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| 61 | * double
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| 62 | */
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| 63 | #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) || defined(RT_ARCH_ARM64)
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| 64 |
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| 65 | # define DBL_MAX (1.7976931348623157E+308)
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| 66 | # define DBL_MIN (2.2250738585072014E-308)
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| 67 | # define DBL_TRUE_MIN (4.9406564584124654E-324)
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| 68 | # define DBL_MAX_EXP (1024)
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| 69 | # define DBL_MIN_EXP (-1021)
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| 70 | # define DBL_MAX_10_EXP (308)
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| 71 | # define DBL_MIN_10_EXP (-307)
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| 72 | # define DBL_EPSILON (2.2204460492503131E-16)
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| 73 | # define DBL_DIG (15)
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| 74 | # define DBL_DECIMAL_DIG (17)
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| 75 | # define DBL_MANT_DIG (53)
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| 76 | # define DBL_HAS_SUBNORM (1)
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| 77 |
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| 78 | #endif
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| 79 |
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| 80 | /*
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| 81 | * long double
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| 82 | */
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| 83 | #if ((defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64)) && defined(RT_OS_WINDOWS)) || defined(RT_ARCH_ARM64) /*?*/
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| 84 |
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| 85 | # define LDBL_MAX DBL_MAX
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| 86 | # define LDBL_MIN DBL_MIN
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| 87 | # define LDBL_TRUE_MIN DBL_TRUE_MIN
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| 88 | # define LDBL_MAX_EXP DBL_MAX_EXP
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| 89 | # define LDBL_MIN_EXP DBL_MIN_EXP
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| 90 | # define LDBL_MAX_10_EXP DBL_MAX_10_EXP
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| 91 | # define LDBL_MIN_10_EXP DBL_MIN_10_EXP
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| 92 | # define LDBL_EPSILON DBL_EPSILON
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| 93 | # define LDBL_DIG DBL_DIG
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| 94 | # define LDBL_DECIMAL_DIG DBL_DECIMAL_DIG
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| 95 | # define LDBL_MANT_DIG DBL_MANT_DIG
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| 96 | # define LDBL_HAS_SUBNORM DBL_HAS_SUBNORM
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| 97 |
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| 98 | #elif defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64)
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| 99 |
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| 100 | # define LDBL_MAX (1.1897314953572317650E+4932L)
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| 101 | # define LDBL_MIN (3.3621031431120935063E-4932L)
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| 102 | # define LDBL_TRUE_MIN (3.6451995318824746025E-4951L)
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| 103 | # define LDBL_MAX_EXP (-16381)
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| 104 | # define LDBL_MIN_EXP (16384)
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| 105 | # define LDBL_MAX_10_EXP (4932)
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| 106 | # define LDBL_MIN_10_EXP (-4931)
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| 107 | # define LDBL_EPSILON (1.0842021724855044340E-19L)
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| 108 | # define LDBL_DIG (18)
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| 109 | # define LDBL_DECIMAL_DIG (21)
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| 110 | # define LDBL_MANT_DIG (64)
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| 111 | # define LDBL_HAS_SUBNORM (1)
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| 112 |
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| 113 | #endif
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| 114 |
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| 115 |
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| 116 | #endif /* !IPRT_INCLUDED_nocrt_float_h */
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| 117 |
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