144 lines
4.2 KiB
C
144 lines
4.2 KiB
C
/*
|
|
* Floating point arithmetic.
|
|
*
|
|
* Derived from the mingw header written by Colin Peters.
|
|
* Modified for Wine use by Hans Leidekker.
|
|
* This file is in the public domain.
|
|
*/
|
|
|
|
#ifndef __WINE_FLOAT_H
|
|
#define __WINE_FLOAT_H
|
|
#ifndef __WINE_USE_MSVCRT
|
|
#define __WINE_USE_MSVCRT
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define DBL_DIG 15
|
|
#define DBL_EPSILON 2.2204460492503131e-016
|
|
#define DBL_MANT_DIG 53
|
|
#define DBL_MAX 1.7976931348623158e+308
|
|
#define DBL_MAX_10_EXP 308
|
|
#define DBL_MAX_EXP 1024
|
|
#define DBL_MIN 2.2250738585072014e-308
|
|
#define DBL_MIN_10_EXP (-307)
|
|
#define DBL_MIN_EXP (-1021)
|
|
|
|
#define _DBL_RADIX 2
|
|
#define _DBL_ROUNDS 1
|
|
|
|
#define DBL_RADIX _DBL_RADIX
|
|
#define DBL_ROUNDS _DBL_ROUNDS
|
|
|
|
#define FLT_DIG 6
|
|
#define FLT_EPSILON 1.192092896e-07F
|
|
#define FLT_MANT_DIG 24
|
|
#define FLT_MAX 3.402823466e+38F
|
|
#define FLT_MAX_10_EXP 38
|
|
#define FLT_MAX_EXP 128
|
|
#define FLT_MIN 1.175494351e-38F
|
|
#define FLT_MIN_10_EXP (-37)
|
|
#define FLT_MIN_EXP (-125)
|
|
|
|
#define FLT_RADIX 2
|
|
#define FLT_ROUNDS 1
|
|
|
|
#define LDBL_DIG DBL_DIG
|
|
#define LDBL_EPSILON DBL_EPSILON
|
|
#define LDBL_MANT_DIG DBL_MANT_DIG
|
|
#define LDBL_MAX DBL_MAX
|
|
#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
|
|
#define LDBL_MAX_EXP DBL_MAX_EXP
|
|
#define LDBL_MIN DBL_MIN
|
|
#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
|
|
#define LDBL_MIN_EXP DBL_MIN_EXP
|
|
|
|
#define _LDBL_RADIX _DBL_RADIX
|
|
#define _LDBL_ROUNDS _DBL_ROUNDS
|
|
|
|
#define LDBL_RADIX _LDBL_RADIX
|
|
#define LDBL_ROUNDS _LDBL_ROUNDS
|
|
|
|
/* _controlfp masks and bitflags - x86 only so far */
|
|
#ifdef __i386__
|
|
|
|
/* Control word masks for unMask */
|
|
#define _MCW_EM 0x0008001F /* Error masks */
|
|
#define _MCW_IC 0x00040000 /* Infinity */
|
|
#define _MCW_RC 0x00000300 /* Rounding */
|
|
#define _MCW_PC 0x00030000 /* Precision */
|
|
|
|
/* Control word values for unNew (use with related unMask above) */
|
|
#define _EM_INVALID 0x00000010
|
|
#define _EM_DENORMAL 0x00080000
|
|
#define _EM_ZERODIVIDE 0x00000008
|
|
#define _EM_OVERFLOW 0x00000004
|
|
#define _EM_UNDERFLOW 0x00000002
|
|
#define _EM_INEXACT 0x00000001
|
|
#define _IC_AFFINE 0x00040000
|
|
#define _IC_PROJECTIVE 0x00000000
|
|
#define _RC_CHOP 0x00000300
|
|
#define _RC_UP 0x00000200
|
|
#define _RC_DOWN 0x00000100
|
|
#define _RC_NEAR 0x00000000
|
|
#define _PC_24 0x00020000
|
|
#define _PC_53 0x00010000
|
|
#define _PC_64 0x00000000
|
|
#endif
|
|
|
|
/* _statusfp bit flags */
|
|
#define _SW_INEXACT 0x00000001 /* inexact (precision) */
|
|
#define _SW_UNDERFLOW 0x00000002 /* underflow */
|
|
#define _SW_OVERFLOW 0x00000004 /* overflow */
|
|
#define _SW_ZERODIVIDE 0x00000008 /* zero divide */
|
|
#define _SW_INVALID 0x00000010 /* invalid */
|
|
|
|
#define _SW_UNEMULATED 0x00000040 /* unemulated instruction */
|
|
#define _SW_SQRTNEG 0x00000080 /* square root of a neg number */
|
|
#define _SW_STACKOVERFLOW 0x00000200 /* FP stack overflow */
|
|
#define _SW_STACKUNDERFLOW 0x00000400 /* FP stack underflow */
|
|
|
|
#define _SW_DENORMAL 0x00080000 /* denormal status bit */
|
|
|
|
/* fpclass constants */
|
|
#define _FPCLASS_SNAN 0x0001 /* Signaling "Not a Number" */
|
|
#define _FPCLASS_QNAN 0x0002 /* Quiet "Not a Number" */
|
|
#define _FPCLASS_NINF 0x0004 /* Negative Infinity */
|
|
#define _FPCLASS_NN 0x0008 /* Negative Normal */
|
|
#define _FPCLASS_ND 0x0010 /* Negative Denormal */
|
|
#define _FPCLASS_NZ 0x0020 /* Negative Zero */
|
|
#define _FPCLASS_PZ 0x0040 /* Positive Zero */
|
|
#define _FPCLASS_PD 0x0080 /* Positive Denormal */
|
|
#define _FPCLASS_PN 0x0100 /* Positive Normal */
|
|
#define _FPCLASS_PINF 0x0200 /* Positive Infinity */
|
|
|
|
/* floating point error signals */
|
|
#define _FPE_INVALID 0x81
|
|
#define _FPE_DENORMAL 0x82
|
|
#define _FPE_ZERODIVIDE 0x83
|
|
#define _FPE_OVERFLOW 0x84
|
|
#define _FPE_UNDERFLOW 0x85
|
|
#define _FPE_INEXACT 0x86
|
|
#define _FPE_UNEMULATED 0x87
|
|
#define _FPE_SQRTNEG 0x88
|
|
#define _FPE_STACKOVERFLOW 0x8a
|
|
#define _FPE_STACKUNDERFLOW 0x8b
|
|
#define _FPE_EXPLICITGEN 0x8c
|
|
|
|
double _copysign (double, double);
|
|
double _chgsign (double);
|
|
double _scalb(double, long);
|
|
double _logb(double);
|
|
double _nextafter(double, double);
|
|
int _finite(double);
|
|
int _isnan(double);
|
|
int _fpclass(double);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __WINE_FLOAT_H */
|