/* wcecompat: Windows CE C Runtime Library "compatibility" library. * * Copyright (C) 2001-2002 Essemer Pty Ltd. All rights reserved. * http://www.essemer.com.au/ * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __wcecompat__FLOAT_H__ #define __wcecompat__FLOAT_H__ #include "stddef.h" #ifdef __cplusplus extern "C" { #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 */ #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 */ // Abstract User Control Word Mask and bit definitions #define _MCW_EM 0x0008001f /* interrupt Exception Masks */ #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 */ #if ! defined (_M_CEE) // i386 specific definitions #define _MCW_PC 0x00030000 /* Precision Control */ #define _PC_64 0x00000000 /* 64 bits */ #define _PC_53 0x00010000 /* 53 bits */ #define _PC_24 0x00020000 /* 24 bits */ #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 */ // MIPS R4000 and SH4 specific definitions #ifdef _M_SH #define _MCW_DN 0x00040000 /* Denormal Control (SH4) */ #define _DN_FLUSH 0x00040000 /* flush to zero (SH4) */ #else #define _MCW_DN 0x01000000 /* Denormal Control (R4000) */ #define _DN_FLUSH 0x01000000 /* flush to zero (R4000) */ #endif #define _DN_SAVE 0x00000000 /* save */ // initial Control Word value #ifdef _M_IX86 #define _CW_DEFAULT ( _RC_NEAR + _PC_64 + _EM_INVALID + _EM_ZERODIVIDE + _EM_OVERFLOW + _EM_UNDERFLOW + _EM_INEXACT ) #else #define _CW_DEFAULT ( _RC_NEAR + _PC_53 + _EM_INVALID + _EM_ZERODIVIDE + _EM_OVERFLOW + _EM_UNDERFLOW + _EM_INEXACT ) #endif #endif // ! _M_CEE // 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 ); */ // Floating point function prototypes unsigned int __cdecl _clearfp(void); unsigned int __cdecl _controlfp(unsigned int,unsigned int); unsigned int __cdecl _statusfp(void); void __cdecl _fpreset(void); #define _clear87 _clearfp #define _status87 _statusfp // IEEE recommended functions double __cdecl _copysign (double, double); double __cdecl _chgsign (double); double __cdecl _scalb(double, long); double __cdecl _logb(double); double __cdecl _nextafter(double, double); int __cdecl _finite(double); int __cdecl _isnan(double); 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 */ typedef float _FP32; typedef double _FP64; typedef short _I16; typedef int _I32; typedef unsigned short _U16; typedef unsigned int _U32; typedef struct { unsigned long W[4]; } _U32ARRAY; typedef struct { unsigned short W[5]; } _FP80; typedef struct { unsigned long W[4]; } _FP128; typedef struct { unsigned long W[2]; } _I64; typedef struct { unsigned long W[2]; } _U64; typedef struct { unsigned short W[5]; } _BCD80; typedef struct { union { _FP32 Fp32Value; _FP64 Fp64Value; _FP80 Fp80Value; _FP128 Fp128Value; _I16 I16Value; _I32 I32Value; _I64 I64Value; _U16 U16Value; _U32 U32Value; _U64 U64Value; _BCD80 Bcd80Value; char *StringValue; int CompareValue; _U32ARRAY U32ArrayValue; } Value; unsigned int OperandValid : 1; unsigned int Format : 4; } _FPIEEE_VALUE; typedef struct { unsigned int Inexact : 1; unsigned int Underflow : 1; unsigned int Overflow : 1; unsigned int ZeroDivide : 1; unsigned int InvalidOperation : 1; } _FPIEEE_EXCEPTION_FLAGS; typedef struct { unsigned int RoundingMode : 2; unsigned int Precision : 3; unsigned int Operation :12; _FPIEEE_EXCEPTION_FLAGS Cause; _FPIEEE_EXCEPTION_FLAGS Enable; _FPIEEE_EXCEPTION_FLAGS Status; _FPIEEE_VALUE Operand1; _FPIEEE_VALUE Operand2; _FPIEEE_VALUE Result; } _FPIEEE_RECORD; typedef struct _EXCEPTION_POINTERS *PEXCEPTION_POINTERS; #ifdef _WIN32_WCE_EMULATION int __cdecl _fpieee_flt(unsigned long exc_code, PEXCEPTION_POINTERS p, int handler(_FPIEEE_RECORD *)); #else int _fpieee_flt(unsigned long exc_code, PEXCEPTION_POINTERS p, int handler(_FPIEEE_RECORD *)); #endif // Non-ANSI names for compatibility #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_ZERODIVIDE _EM_ZERODIVIDE #define EM_OVERFLOW _EM_OVERFLOW #define EM_UNDERFLOW _EM_UNDERFLOW #define EM_INEXACT _EM_INEXACT #if ! defined (_M_CEE) #define EM_DENORMAL _EM_DENORMAL #define SW_DENORMAL _SW_DENORMAL #define MCW_IC _MCW_IC #define IC_AFFINE _IC_AFFINE #define IC_PROJECTIVE _IC_PROJECTIVE #define MCW_PC _MCW_PC #define PC_24 _PC_24 #define PC_53 _PC_53 #define PC_64 _PC_64 #endif // ! _M_CEE #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 CW_DEFAULT _CW_DEFAULT #define SW_INVALID _SW_INVALID #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 #ifdef _WIN32_WCE_EMULATION double __cdecl _frnd(double); double __cdecl _fsqrt(double); #else double _frnd(double); double _fsqrt(double); #endif // definition of a _complex struct to be used by those who use cabs and // want type checking on their argument struct _complex { double x,y; /* real and imaginary parts */ } ; // Non-ANSI name for compatibility #define complex _complex // definitions of _HUGE and HUGE_VAL - respectively the XENIX and ANSI names // for a value returned in case of error by a number of the floating point // math routines _CRTIMP extern double _HUGE; #define HUGE_VAL _HUGE #ifdef __cplusplus } #endif #endif /* __wcecompat__FLOAT_H__ */