| 1 | /*
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| 2 | * Floating point arithmetic.
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| 3 | *
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| 4 | * Derived from the mingw header written by Colin Peters.
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| 5 | * Modified for Wine use by Hans Leidekker.
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| 6 | * This file is in the public domain.
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| 7 | */
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| 8 |
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| 9 | /*
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| 10 | * Sun LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
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| 11 | * other than GPL or LGPL is available it will apply instead, Sun elects to use only
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| 12 | * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
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| 13 | * a choice of LGPL license versions is made available with the language indicating
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| 14 | * that LGPLv2 or any later version may be used, or where a choice of which version
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| 15 | * of the LGPL is applied is otherwise unspecified.
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| 16 | */
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| 17 |
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| 18 | #ifndef __WINE_FLOAT_H
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| 19 | #define __WINE_FLOAT_H
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| 20 |
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| 21 | #include <crtdefs.h>
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| 22 |
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| 23 | #ifdef __cplusplus
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| 24 | extern "C" {
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| 25 | #endif
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| 26 |
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| 27 | #define DBL_DIG 15
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| 28 | #define DBL_EPSILON 2.2204460492503131e-016
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| 29 | #define DBL_MANT_DIG 53
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| 30 | #define DBL_MAX 1.7976931348623158e+308
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| 31 | #define DBL_MAX_10_EXP 308
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| 32 | #define DBL_MAX_EXP 1024
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| 33 | #define DBL_MIN 2.2250738585072014e-308
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| 34 | #define DBL_MIN_10_EXP (-307)
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| 35 | #define DBL_MIN_EXP (-1021)
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| 36 |
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| 37 | #define _DBL_RADIX 2
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| 38 | #define _DBL_ROUNDS 1
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| 39 |
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| 40 | #define DBL_RADIX _DBL_RADIX
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| 41 | #define DBL_ROUNDS _DBL_ROUNDS
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| 42 |
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| 43 | #define FLT_DIG 6
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| 44 | #define FLT_EPSILON 1.192092896e-07F
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| 45 | #define FLT_MANT_DIG 24
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| 46 | #define FLT_MAX 3.402823466e+38F
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| 47 | #define FLT_MAX_10_EXP 38
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| 48 | #define FLT_MAX_EXP 128
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| 49 | #define FLT_MIN 1.175494351e-38F
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| 50 | #define FLT_MIN_10_EXP (-37)
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| 51 | #define FLT_MIN_EXP (-125)
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| 52 |
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| 53 | #define FLT_RADIX 2
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| 54 | #define FLT_ROUNDS 1
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| 55 |
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| 56 | #define LDBL_DIG DBL_DIG
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| 57 | #define LDBL_EPSILON DBL_EPSILON
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| 58 | #define LDBL_MANT_DIG DBL_MANT_DIG
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| 59 | #define LDBL_MAX DBL_MAX
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| 60 | #define LDBL_MAX_10_EXP DBL_MAX_10_EXP
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| 61 | #define LDBL_MAX_EXP DBL_MAX_EXP
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| 62 | #define LDBL_MIN DBL_MIN
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| 63 | #define LDBL_MIN_10_EXP DBL_MIN_10_EXP
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| 64 | #define LDBL_MIN_EXP DBL_MIN_EXP
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| 65 |
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| 66 | #define _LDBL_RADIX _DBL_RADIX
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| 67 | #define _LDBL_ROUNDS _DBL_ROUNDS
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| 68 |
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| 69 | #define LDBL_RADIX _LDBL_RADIX
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| 70 | #define LDBL_ROUNDS _LDBL_ROUNDS
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| 71 |
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| 72 | /* _controlfp masks and bitflags - x86 only so far */
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| 73 | #ifdef __i386__
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| 74 |
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| 75 | /* Control word masks for unMask */
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| 76 | #define _MCW_EM 0x0008001F /* Error masks */
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| 77 | #define _MCW_IC 0x00040000 /* Infinity */
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| 78 | #define _MCW_RC 0x00000300 /* Rounding */
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| 79 | #define _MCW_PC 0x00030000 /* Precision */
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| 80 |
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| 81 | /* Control word values for unNew (use with related unMask above) */
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| 82 | #define _EM_INVALID 0x00000010
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| 83 | #define _EM_DENORMAL 0x00080000
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| 84 | #define _EM_ZERODIVIDE 0x00000008
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| 85 | #define _EM_OVERFLOW 0x00000004
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| 86 | #define _EM_UNDERFLOW 0x00000002
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| 87 | #define _EM_INEXACT 0x00000001
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| 88 | #define _IC_AFFINE 0x00040000
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| 89 | #define _IC_PROJECTIVE 0x00000000
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| 90 | #define _RC_CHOP 0x00000300
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| 91 | #define _RC_UP 0x00000200
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| 92 | #define _RC_DOWN 0x00000100
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| 93 | #define _RC_NEAR 0x00000000
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| 94 | #define _PC_24 0x00020000
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| 95 | #define _PC_53 0x00010000
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| 96 | #define _PC_64 0x00000000
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| 97 | #endif
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| 98 |
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| 99 | /* _statusfp bit flags */
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| 100 | #define _SW_INEXACT 0x00000001 /* inexact (precision) */
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| 101 | #define _SW_UNDERFLOW 0x00000002 /* underflow */
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| 102 | #define _SW_OVERFLOW 0x00000004 /* overflow */
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| 103 | #define _SW_ZERODIVIDE 0x00000008 /* zero divide */
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| 104 | #define _SW_INVALID 0x00000010 /* invalid */
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| 105 |
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| 106 | #define _SW_UNEMULATED 0x00000040 /* unemulated instruction */
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| 107 | #define _SW_SQRTNEG 0x00000080 /* square root of a neg number */
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| 108 | #define _SW_STACKOVERFLOW 0x00000200 /* FP stack overflow */
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| 109 | #define _SW_STACKUNDERFLOW 0x00000400 /* FP stack underflow */
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| 110 |
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| 111 | #define _SW_DENORMAL 0x00080000 /* denormal status bit */
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| 112 |
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| 113 | /* fpclass constants */
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| 114 | #define _FPCLASS_SNAN 0x0001 /* Signaling "Not a Number" */
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| 115 | #define _FPCLASS_QNAN 0x0002 /* Quiet "Not a Number" */
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| 116 | #define _FPCLASS_NINF 0x0004 /* Negative Infinity */
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| 117 | #define _FPCLASS_NN 0x0008 /* Negative Normal */
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| 118 | #define _FPCLASS_ND 0x0010 /* Negative Denormal */
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| 119 | #define _FPCLASS_NZ 0x0020 /* Negative Zero */
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| 120 | #define _FPCLASS_PZ 0x0040 /* Positive Zero */
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| 121 | #define _FPCLASS_PD 0x0080 /* Positive Denormal */
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| 122 | #define _FPCLASS_PN 0x0100 /* Positive Normal */
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| 123 | #define _FPCLASS_PINF 0x0200 /* Positive Infinity */
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| 124 |
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| 125 | /* floating point error signals */
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| 126 | #define _FPE_INVALID 0x81
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| 127 | #define _FPE_DENORMAL 0x82
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| 128 | #define _FPE_ZERODIVIDE 0x83
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| 129 | #define _FPE_OVERFLOW 0x84
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| 130 | #define _FPE_UNDERFLOW 0x85
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| 131 | #define _FPE_INEXACT 0x86
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| 132 | #define _FPE_UNEMULATED 0x87
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| 133 | #define _FPE_SQRTNEG 0x88
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| 134 | #define _FPE_STACKOVERFLOW 0x8a
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| 135 | #define _FPE_STACKUNDERFLOW 0x8b
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| 136 | #define _FPE_EXPLICITGEN 0x8c
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| 137 |
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| 138 | double __cdecl _copysign (double, double);
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| 139 | double __cdecl _chgsign (double);
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| 140 | double __cdecl _scalb(double, __msvcrt_long);
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| 141 | double __cdecl _logb(double);
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| 142 | double __cdecl _nextafter(double, double);
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| 143 | int __cdecl _finite(double);
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| 144 | int __cdecl _isnan(double);
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| 145 | int __cdecl _fpclass(double);
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| 146 |
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| 147 | #ifdef __cplusplus
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| 148 | }
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| 149 | #endif
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| 150 |
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| 151 | #endif /* __WINE_FLOAT_H */
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