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- /***
- *float.h - constants for floating point values
- *
- * Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
- *
- *Purpose:
- * This file contains defines for a number of implementation dependent
- * values which are commonly used by sophisticated numerical (floating
- * point) programs.
- * [ANSI]
- *
- * [Public]
- *
- ****/
-
- #if _MSC_VER > 1000
- #pragma once
- #endif
-
- #ifndef _INC_FLOAT
- #define _INC_FLOAT
-
- #if !defined(_WIN32) && !defined(_MAC)
- #error ERROR: Only Mac or Win32 targets supported!
- #endif
-
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
-
-
- /* Define _CRTIMP */
-
- #ifndef _CRTIMP
- #ifdef _DLL
- #define _CRTIMP __declspec(dllimport)
- #else /* ndef _DLL */
- #define _CRTIMP
- #endif /* _DLL */
- #endif /* _CRTIMP */
-
-
- /* Define __cdecl for non-Microsoft compilers */
-
- #if ( !defined(_MSC_VER) && !defined(__cdecl) )
- #define __cdecl
- #endif
-
- /* Define _CRTAPI1 (for compatibility with the NT SDK) */
-
- #ifndef _CRTAPI1
- #if _MSC_VER >= 800 && _M_IX86 >= 300
- #define _CRTAPI1 __cdecl
- #else
- #define _CRTAPI1
- #endif
- #endif
-
- #define DBL_DIG 15 /* # of decimal digits of precision */
- #define DBL_EPSILON 2.2204460492503131e-016 /* smallest such that 1.0+DBL_EPSILON != 1.0 */
- #define DBL_MANT_DIG 53 /* # of bits in mantissa */
- #define DBL_MAX 1.7976931348623158e+308 /* max value */
- #define DBL_MAX_10_EXP 308 /* max decimal exponent */
- #define DBL_MAX_EXP 1024 /* max binary exponent */
- #define DBL_MIN 2.2250738585072014e-308 /* min positive value */
- #define DBL_MIN_10_EXP (-307) /* min decimal exponent */
- #define DBL_MIN_EXP (-1021) /* min binary exponent */
- #define _DBL_RADIX 2 /* exponent radix */
- #define _DBL_ROUNDS 1 /* addition rounding: near */
-
- #define FLT_DIG 6 /* # of decimal digits of precision */
- #define FLT_EPSILON 1.192092896e-07F /* smallest such that 1.0+FLT_EPSILON != 1.0 */
- #define FLT_GUARD 0
- #define FLT_MANT_DIG 24 /* # of bits in mantissa */
- #define FLT_MAX 3.402823466e+38F /* max value */
- #define FLT_MAX_10_EXP 38 /* max decimal exponent */
- #define FLT_MAX_EXP 128 /* max binary exponent */
- #define FLT_MIN 1.175494351e-38F /* min positive value */
- #define FLT_MIN_10_EXP (-37) /* min decimal exponent */
- #define FLT_MIN_EXP (-125) /* min binary exponent */
- #define FLT_NORMALIZE 0
- #define FLT_RADIX 2 /* exponent radix */
- #define FLT_ROUNDS 1 /* addition rounding: near */
-
- #ifndef _M_M68K
- #define LDBL_DIG DBL_DIG /* # of decimal digits of precision */
- #define LDBL_EPSILON DBL_EPSILON /* smallest such that 1.0+LDBL_EPSILON != 1.0 */
- #define LDBL_MANT_DIG DBL_MANT_DIG /* # of bits in mantissa */
- #define LDBL_MAX DBL_MAX /* max value */
- #define LDBL_MAX_10_EXP DBL_MAX_10_EXP /* max decimal exponent */
- #define LDBL_MAX_EXP DBL_MAX_EXP /* max binary exponent */
- #define LDBL_MIN DBL_MIN /* min positive value */
- #define LDBL_MIN_10_EXP DBL_MIN_10_EXP /* min decimal exponent */
- #define LDBL_MIN_EXP DBL_MIN_EXP /* min binary exponent */
- #define _LDBL_RADIX DBL_RADIX /* exponent radix */
- #define _LDBL_ROUNDS DBL_ROUNDS /* addition rounding: near */
- #else
- #define LDBL_DIG 18 /* # of decimal digits of precision */
- #define LDBL_EPSILON 1.08420217248550443412e-019L /* smallest such that 1.0+LDBL_EPSILON != 1.0 */
- #define LDBL_MANT_DIG 64 /* # of bits in mantissa */
- #define LDBL_MAX 1.189731495357231765e+4932L /* max value */
- #define LDBL_MAX_10_EXP 4932 /* max decimal exponent */
- #define LDBL_MAX_EXP 16384 /* max binary exponent */
- #define LDBL_MIN 3.3621031431120935063e-4932L /* min positive value */
- #define LDBL_MIN_10_EXP (-4931) /* min decimal exponent */
- #define LDBL_MIN_EXP (-16381) /* min binary exponent */
- #define _LDBL_RADIX 2 /* exponent radix */
- #define _LDBL_ROUNDS 1 /* addition rounding: near */
- #endif
-
- /* Function prototypes */
-
- _CRTIMP unsigned int __cdecl _clearfp(void);
- _CRTIMP unsigned int __cdecl _controlfp(unsigned int,unsigned int);
- _CRTIMP unsigned int __cdecl _statusfp(void);
- _CRTIMP void __cdecl _fpreset(void);
-
- #ifndef _MAC
- #define _clear87 _clearfp
- #define _status87 _statusfp
- #endif /* _MAC */
-
- /*
- * Abstract User Control Word Mask and bit definitions
- */
- #ifndef _MAC
- #define _MCW_EM 0x0008001f /* interrupt Exception Masks */
- #else
- #define _MCW_EM 0x0000001f /* interrupt Exception Masks */
- #endif
- #define _EM_INEXACT 0x00000001 /* inexact (precision) */
- #define _EM_UNDERFLOW 0x00000002 /* underflow */
- #define _EM_OVERFLOW 0x00000004 /* overflow */
- #define _EM_ZERODIVIDE 0x00000008 /* zero divide */
- #define _EM_INVALID 0x00000010 /* invalid */
-
- #define _MCW_RC 0x00000300 /* Rounding Control */
- #define _RC_NEAR 0x00000000 /* near */
- #define _RC_DOWN 0x00000100 /* down */
- #define _RC_UP 0x00000200 /* up */
- #define _RC_CHOP 0x00000300 /* chop */
-
- /*
- * Abstract User Status Word bit definitions
- */
-
- #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 */
-
-
- /*
- * i386 specific definitions
- */
- #define _MCW_PC 0x00030000 /* Precision Control */
- #ifdef _M_MPPC
- /*
- * PowerMac specific definitions(no precision control)
- */
- #define _PC_64 0x00000000 /* 64 bits */
- #define _PC_53 0x00000000 /* 53 bits */
- #define _PC_24 0x00000000 /* 24 bits */
- #else
- #define _PC_64 0x00000000 /* 64 bits */
- #define _PC_53 0x00010000 /* 53 bits */
- #define _PC_24 0x00020000 /* 24 bits */
- #endif
-
- #define _MCW_IC 0x00040000 /* Infinity Control */
- #define _IC_AFFINE 0x00040000 /* affine */
- #define _IC_PROJECTIVE 0x00000000 /* projective */
-
- #define _EM_DENORMAL 0x00080000 /* denormal exception mask (_control87 only) */
-
- #define _SW_DENORMAL 0x00080000 /* denormal status bit */
-
-
- _CRTIMP unsigned int __cdecl _control87(unsigned int,unsigned int);
-
-
- /*
- * RISC specific definitions
- */
-
- #define _MCW_DN 0x03000000 /* Denormal Control */
- #define _DN_SAVE 0x00000000 /* save denormal results and operands */
- #define _DN_FLUSH 0x01000000 /* flush denormal results and operands to zero */
- #define _DN_FLUSH_OPERANDS_SAVE_RESULTS 0x02000000 /* flush operands to zero and save results */
- #define _DN_SAVE_OPERANDS_FLUSH_RESULTS 0x03000000 /* save operands and flush results to zero */
-
-
- /* initial Control Word value */
-
- #if defined(_M_IX86)
-
- #define _CW_DEFAULT ( _RC_NEAR + _PC_53 + _EM_INVALID + _EM_ZERODIVIDE + _EM_OVERFLOW + _EM_UNDERFLOW + _EM_INEXACT + _EM_DENORMAL)
-
- #elif defined(_MAC)
-
- #define _CW_DEFAULT ( _RC_NEAR + _PC_64 + _EM_INVALID + _EM_ZERODIVIDE + _EM_OVERFLOW + _EM_UNDERFLOW + _EM_INEXACT )
-
- #elif defined(_M_MRX000) || defined (_M_ALPHA) || defined(_M_PPC)
-
- #define _CW_DEFAULT ( _RC_NEAR + _DN_FLUSH + _EM_INVALID + _EM_ZERODIVIDE + _EM_OVERFLOW + _EM_UNDERFLOW + _EM_INEXACT )
-
- #endif
-
- /* Global variable holding floating point error code */
-
- #if defined(_MT) || defined(_DLL)
- _CRTIMP extern int * __cdecl __fpecode(void);
- #define _fpecode (*__fpecode())
- #else /* ndef _MT && ndef _DLL */
- extern int _fpecode;
- #endif /* _MT || _DLL */
-
- /* invalid subconditions (_SW_INVALID also set) */
-
- #define _SW_UNEMULATED 0x0040 /* unemulated instruction */
- #define _SW_SQRTNEG 0x0080 /* square root of a neg number */
- #define _SW_STACKOVERFLOW 0x0200 /* FP stack overflow */
- #define _SW_STACKUNDERFLOW 0x0400 /* FP stack underflow */
-
- /* Floating point error signals and return codes */
-
- #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 /* raise( SIGFPE ); */
-
-
- /* IEEE recommended functions */
-
- _CRTIMP double __cdecl _copysign (double, double);
- _CRTIMP double __cdecl _chgsign (double);
- _CRTIMP double __cdecl _scalb(double, long);
- _CRTIMP double __cdecl _logb(double);
- _CRTIMP double __cdecl _nextafter(double, double);
- _CRTIMP int __cdecl _finite(double);
- _CRTIMP int __cdecl _isnan(double);
- _CRTIMP int __cdecl _fpclass(double);
-
- #define _FPCLASS_SNAN 0x0001 /* signaling NaN */
- #define _FPCLASS_QNAN 0x0002 /* quiet NaN */
- #define _FPCLASS_NINF 0x0004 /* negative infinity */
- #define _FPCLASS_NN 0x0008 /* negative normal */
- #define _FPCLASS_ND 0x0010 /* negative denormal */
- #define _FPCLASS_NZ 0x0020 /* -0 */
- #define _FPCLASS_PZ 0x0040 /* +0 */
- #define _FPCLASS_PD 0x0080 /* positive denormal */
- #define _FPCLASS_PN 0x0100 /* positive normal */
- #define _FPCLASS_PINF 0x0200 /* positive infinity */
-
-
- #if !__STDC__
-
- /* Non-ANSI names for compatibility */
-
- #ifndef _MAC
- #define clear87 _clear87
- #define status87 _status87
- #define control87 _control87
- #endif /* _MAC */
-
- _CRTIMP void __cdecl fpreset(void);
-
- #define DBL_RADIX _DBL_RADIX
- #define DBL_ROUNDS _DBL_ROUNDS
-
- #define LDBL_RADIX _LDBL_RADIX
- #define LDBL_ROUNDS _LDBL_ROUNDS
-
- #define MCW_EM _MCW_EM
- #define EM_INVALID _EM_INVALID
- #define EM_DENORMAL _EM_DENORMAL
- #define EM_ZERODIVIDE _EM_ZERODIVIDE
- #define EM_OVERFLOW _EM_OVERFLOW
- #define EM_UNDERFLOW _EM_UNDERFLOW
- #define EM_INEXACT _EM_INEXACT
-
- #define MCW_IC _MCW_IC
- #define IC_AFFINE _IC_AFFINE
- #define IC_PROJECTIVE _IC_PROJECTIVE
-
- #define MCW_RC _MCW_RC
- #define RC_CHOP _RC_CHOP
- #define RC_UP _RC_UP
- #define RC_DOWN _RC_DOWN
- #define RC_NEAR _RC_NEAR
-
- #define MCW_PC _MCW_PC
- #define PC_24 _PC_24
- #define PC_53 _PC_53
- #define PC_64 _PC_64
-
- #define CW_DEFAULT _CW_DEFAULT
-
- #define SW_INVALID _SW_INVALID
- #define SW_DENORMAL _SW_DENORMAL
- #define SW_ZERODIVIDE _SW_ZERODIVIDE
- #define SW_OVERFLOW _SW_OVERFLOW
- #define SW_UNDERFLOW _SW_UNDERFLOW
- #define SW_INEXACT _SW_INEXACT
-
- #define SW_UNEMULATED _SW_UNEMULATED
- #define SW_SQRTNEG _SW_SQRTNEG
- #define SW_STACKOVERFLOW _SW_STACKOVERFLOW
- #define SW_STACKUNDERFLOW _SW_STACKUNDERFLOW
-
- #define FPE_INVALID _FPE_INVALID
- #define FPE_DENORMAL _FPE_DENORMAL
- #define FPE_ZERODIVIDE _FPE_ZERODIVIDE
- #define FPE_OVERFLOW _FPE_OVERFLOW
- #define FPE_UNDERFLOW _FPE_UNDERFLOW
- #define FPE_INEXACT _FPE_INEXACT
-
- #define FPE_UNEMULATED _FPE_UNEMULATED
- #define FPE_SQRTNEG _FPE_SQRTNEG
- #define FPE_STACKOVERFLOW _FPE_STACKOVERFLOW
- #define FPE_STACKUNDERFLOW _FPE_STACKUNDERFLOW
-
- #define FPE_EXPLICITGEN _FPE_EXPLICITGEN
-
- #endif /* __STDC__ */
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* _INC_FLOAT */
-