diff options
Diffstat (limited to 'win32/include/float.h')
| -rw-r--r-- | win32/include/float.h | 448 |
1 files changed, 224 insertions, 224 deletions
diff --git a/win32/include/float.h b/win32/include/float.h index 7aeb59a..a6fb6db 100644 --- a/win32/include/float.h +++ b/win32/include/float.h @@ -1,224 +1,224 @@ -/*
- * float.h
- *
- * Constants related to floating point arithmetic.
- *
- * Also included here are some non-ANSI bits for accessing the floating
- * point controller.
- *
- * NOTE: GCC provides float.h, and it is probably more accurate than this,
- * but it doesn't include the non-standard stuff for accessing the
- * fp controller. (TODO: Move those bits elsewhere?) Thus it is
- * probably not a good idea to use the GCC supplied version instead
- * of this header.
- *
- * This file is part of the Mingw32 package.
- *
- * Contributors:
- * Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
- *
- * THIS SOFTWARE IS NOT COPYRIGHTED
- *
- * This source code is offered for use in the public domain. You may
- * use, modify or distribute it freely.
- *
- * This code is distributed in the hope that it will be useful but
- * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
- * DISCLAIMED. This includes but is not limited to warranties of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * $Revision: 1.1 $
- * $Author: bellard $
- * $Date: 2005/04/14 23:49:21 $
- *
- */
-
-#ifndef _FLOAT_H_
-#define _FLOAT_H_
-
-/* All the headers include this file. */
-#include <_mingw.h>
-
-#define FLT_ROUNDS 1
-#define FLT_GUARD 1
-#define FLT_NORMALIZE 1
-
-/*
- * The characteristics of float.
- */
-
-/* The radix for floating point representation. */
-#define FLT_RADIX 2
-
-/* Decimal digits of precision. */
-#define FLT_DIG 6
-
-/* Smallest number such that 1+x != 1 */
-#define FLT_EPSILON 1.19209290e-07F
-
-/* The number of base FLT_RADIX digits in the mantissa. */
-#define FLT_MANT_DIG 24
-
-/* The maximum floating point number. */
-#define FLT_MAX 3.40282347e+38F
-
-/* Maximum n such that FLT_RADIX^n - 1 is representable. */
-#define FLT_MAX_EXP 128
-
-/* Maximum n such that 10^n is representable. */
-#define FLT_MAX_10_EXP 38
-
-/* Minimum normalized floating-point number. */
-#define FLT_MIN 1.17549435e-38F
-
-/* Minimum n such that FLT_RADIX^n is a normalized number. */
-#define FLT_MIN_EXP (-125)
-
-/* Minimum n such that 10^n is a normalized number. */
-#define FLT_MIN_10_EXP (-37)
-
-
-/*
- * The characteristics of double.
- */
-#define DBL_DIG 15
-#define DBL_EPSILON 1.1102230246251568e-16
-#define DBL_MANT_DIG 53
-#define DBL_MAX 1.7976931348623157e+308
-#define DBL_MAX_EXP 1024
-#define DBL_MAX_10_EXP 308
-#define DBL_MIN 2.2250738585072014e-308
-#define DBL_MIN_EXP (-1021)
-#define DBL_MIN_10_EXP (-307)
-
-
-/*
- * The characteristics of long double.
- * NOTE: long double is the same as double.
- */
-#define LDBL_DIG 15
-#define LDBL_EPSILON 1.1102230246251568e-16L
-#define LDBL_MANT_DIG 53
-#define LDBL_MAX 1.7976931348623157e+308L
-#define LDBL_MAX_EXP 1024
-#define LDBL_MAX_10_EXP 308
-#define LDBL_MIN 2.2250738585072014e-308L
-#define LDBL_MIN_EXP (-1021)
-#define LDBL_MIN_10_EXP (-307)
-
-
-/*
- * Functions and definitions for controlling the FPU.
- */
-#ifndef __STRICT_ANSI__
-
-/* TODO: These constants are only valid for x86 machines */
-
-/* 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
-
-/* These are also defined in Mingw math.h, needed to work around
- GCC build issues. */
-/* Return values for fpclass. */
-#ifndef __MINGW_FPCLASS_DEFINED
-#define __MINGW_FPCLASS_DEFINED 1
-#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 */
-#endif /* __MINGW_FPCLASS_DEFINED */
-
-/* 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 ); */
-
-#ifndef RC_INVOKED
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Set the FPU control word as cw = (cw & ~unMask) | (unNew & unMask),
- * i.e. change the bits in unMask to have the values they have in unNew,
- * leaving other bits unchanged. */
-unsigned int _controlfp (unsigned int unNew, unsigned int unMask);
-unsigned int _control87 (unsigned int unNew, unsigned int unMask);
-
-
-unsigned int _clearfp (void); /* Clear the FPU status word */
-unsigned int _statusfp (void); /* Report the FPU status word */
-#define _clear87 _clearfp
-#define _status87 _statusfp
-
-void _fpreset (void); /* Reset the FPU */
-void fpreset (void);
-
-/* Global 'variable' for the current floating point error code. */
-int * __fpecode(void);
-#define _fpecode (*(__fpecode()))
-
-/*
- * IEEE recommended functions
- */
-
-double _chgsign (double);
-double _copysign (double, double);
-double _logb (double);
-double _nextafter (double, double);
-double _scalb (double, long);
-
-int _finite (double);
-int _fpclass (double);
-int _isnan (double);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* Not RC_INVOKED */
-
-#endif /* Not __STRICT_ANSI__ */
-
-#endif /* _FLOAT_H_ */
-
+/* + * float.h + * + * Constants related to floating point arithmetic. + * + * Also included here are some non-ANSI bits for accessing the floating + * point controller. + * + * NOTE: GCC provides float.h, and it is probably more accurate than this, + * but it doesn't include the non-standard stuff for accessing the + * fp controller. (TODO: Move those bits elsewhere?) Thus it is + * probably not a good idea to use the GCC supplied version instead + * of this header. + * + * This file is part of the Mingw32 package. + * + * Contributors: + * Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp> + * + * THIS SOFTWARE IS NOT COPYRIGHTED + * + * This source code is offered for use in the public domain. You may + * use, modify or distribute it freely. + * + * This code is distributed in the hope that it will be useful but + * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY + * DISCLAIMED. This includes but is not limited to warranties of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * $Revision: 1.2 $ + * $Author: bellard $ + * $Date: 2005/04/17 13:14:29 $ + * + */ + +#ifndef _FLOAT_H_ +#define _FLOAT_H_ + +/* All the headers include this file. */ +#include <_mingw.h> + +#define FLT_ROUNDS 1 +#define FLT_GUARD 1 +#define FLT_NORMALIZE 1 + +/* + * The characteristics of float. + */ + +/* The radix for floating point representation. */ +#define FLT_RADIX 2 + +/* Decimal digits of precision. */ +#define FLT_DIG 6 + +/* Smallest number such that 1+x != 1 */ +#define FLT_EPSILON 1.19209290e-07F + +/* The number of base FLT_RADIX digits in the mantissa. */ +#define FLT_MANT_DIG 24 + +/* The maximum floating point number. */ +#define FLT_MAX 3.40282347e+38F + +/* Maximum n such that FLT_RADIX^n - 1 is representable. */ +#define FLT_MAX_EXP 128 + +/* Maximum n such that 10^n is representable. */ +#define FLT_MAX_10_EXP 38 + +/* Minimum normalized floating-point number. */ +#define FLT_MIN 1.17549435e-38F + +/* Minimum n such that FLT_RADIX^n is a normalized number. */ +#define FLT_MIN_EXP (-125) + +/* Minimum n such that 10^n is a normalized number. */ +#define FLT_MIN_10_EXP (-37) + + +/* + * The characteristics of double. + */ +#define DBL_DIG 15 +#define DBL_EPSILON 1.1102230246251568e-16 +#define DBL_MANT_DIG 53 +#define DBL_MAX 1.7976931348623157e+308 +#define DBL_MAX_EXP 1024 +#define DBL_MAX_10_EXP 308 +#define DBL_MIN 2.2250738585072014e-308 +#define DBL_MIN_EXP (-1021) +#define DBL_MIN_10_EXP (-307) + + +/* + * The characteristics of long double. + * NOTE: long double is the same as double. + */ +#define LDBL_DIG 15 +#define LDBL_EPSILON 1.1102230246251568e-16L +#define LDBL_MANT_DIG 53 +#define LDBL_MAX 1.7976931348623157e+308L +#define LDBL_MAX_EXP 1024 +#define LDBL_MAX_10_EXP 308 +#define LDBL_MIN 2.2250738585072014e-308L +#define LDBL_MIN_EXP (-1021) +#define LDBL_MIN_10_EXP (-307) + + +/* + * Functions and definitions for controlling the FPU. + */ +#ifndef __STRICT_ANSI__ + +/* TODO: These constants are only valid for x86 machines */ + +/* 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 + +/* These are also defined in Mingw math.h, needed to work around + GCC build issues. */ +/* Return values for fpclass. */ +#ifndef __MINGW_FPCLASS_DEFINED +#define __MINGW_FPCLASS_DEFINED 1 +#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 */ +#endif /* __MINGW_FPCLASS_DEFINED */ + +/* 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 ); */ + +#ifndef RC_INVOKED + +#ifdef __cplusplus +extern "C" { +#endif + +/* Set the FPU control word as cw = (cw & ~unMask) | (unNew & unMask), + * i.e. change the bits in unMask to have the values they have in unNew, + * leaving other bits unchanged. */ +unsigned int _controlfp (unsigned int unNew, unsigned int unMask); +unsigned int _control87 (unsigned int unNew, unsigned int unMask); + + +unsigned int _clearfp (void); /* Clear the FPU status word */ +unsigned int _statusfp (void); /* Report the FPU status word */ +#define _clear87 _clearfp +#define _status87 _statusfp + +void _fpreset (void); /* Reset the FPU */ +void fpreset (void); + +/* Global 'variable' for the current floating point error code. */ +int * __fpecode(void); +#define _fpecode (*(__fpecode())) + +/* + * IEEE recommended functions + */ + +double _chgsign (double); +double _copysign (double, double); +double _logb (double); +double _nextafter (double, double); +double _scalb (double, long); + +int _finite (double); +int _fpclass (double); +int _isnan (double); + +#ifdef __cplusplus +} +#endif + +#endif /* Not RC_INVOKED */ + +#endif /* Not __STRICT_ANSI__ */ + +#endif /* _FLOAT_H_ */ + |