264 lines
8.4 KiB
C
264 lines
8.4 KiB
C
|
/* float.h
|
||
|
|
|
||
|
|
Defines implementation specific macros for dealing with
|
||
|
|
floating point.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* C/C++ Run Time Library - Version 10.0
|
||
|
|
*
|
||
|
|
* Copyright (c) 1987, 2000 by Inprise Corporation
|
||
|
|
* All Rights Reserved.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* $Revision: 9.11 $ */
|
||
|
|
|
||
|
|
#ifndef __FLOAT_H
|
||
|
|
#define __FLOAT_H
|
||
|
|
|
||
|
|
#ifndef ___STDDEF_H
|
||
|
|
#include <_stddef.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
namespace std {
|
||
|
|
#endif /* __cplusplus */
|
||
|
|
|
||
|
|
|
||
|
|
#if !defined(RC_INVOKED)
|
||
|
|
|
||
|
|
#if defined(__STDC__)
|
||
|
|
#pragma warn -nak
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* !RC_INVOKED */
|
||
|
|
|
||
|
|
|
||
|
|
#define FLT_RADIX 2
|
||
|
|
#define FLT_ROUNDS 1
|
||
|
|
#define FLT_GUARD 1
|
||
|
|
#define FLT_NORMALIZE 1
|
||
|
|
|
||
|
|
#define DBL_DIG 15
|
||
|
|
#define FLT_DIG 6
|
||
|
|
#define LDBL_DIG 18
|
||
|
|
|
||
|
|
#define DBL_MANT_DIG 53
|
||
|
|
#define FLT_MANT_DIG 24
|
||
|
|
#define LDBL_MANT_DIG 64
|
||
|
|
|
||
|
|
#define DBL_EPSILON 2.2204460492503131E-16
|
||
|
|
#define FLT_EPSILON 1.19209290E-07F
|
||
|
|
#define LDBL_EPSILON 1.084202172485504434e-019L
|
||
|
|
|
||
|
|
/* smallest positive IEEE normal numbers */
|
||
|
|
#define DBL_MIN 2.2250738585072014E-308
|
||
|
|
#define FLT_MIN 1.17549435E-38F
|
||
|
|
#define LDBL_MIN _tiny_ldble
|
||
|
|
|
||
|
|
#define DBL_MAX _max_dble
|
||
|
|
#define FLT_MAX _max_flt
|
||
|
|
#define LDBL_MAX _max_ldble
|
||
|
|
|
||
|
|
#define DBL_MAX_EXP +1024
|
||
|
|
#define FLT_MAX_EXP +128
|
||
|
|
#define LDBL_MAX_EXP +16384
|
||
|
|
|
||
|
|
#define DBL_MAX_10_EXP +308
|
||
|
|
#define FLT_MAX_10_EXP +38
|
||
|
|
#define LDBL_MAX_10_EXP +4932
|
||
|
|
|
||
|
|
#define DBL_MIN_10_EXP -307
|
||
|
|
#define FLT_MIN_10_EXP -37
|
||
|
|
#define LDBL_MIN_10_EXP -4931
|
||
|
|
|
||
|
|
#define DBL_MIN_EXP -1021
|
||
|
|
#define FLT_MIN_EXP -125
|
||
|
|
#define LDBL_MIN_EXP -16381
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern float _RTLENTRY _EXPDATA _max_flt;
|
||
|
|
extern double _RTLENTRY _EXPDATA _max_dble;
|
||
|
|
extern long double _RTLENTRY _EXPDATA _max_ldble;
|
||
|
|
extern long double _RTLENTRY _EXPDATA _tiny_ldble;
|
||
|
|
|
||
|
|
unsigned int _RTLENTRY _clear87(void);
|
||
|
|
unsigned int _RTLENTRY _control87(unsigned int __newcw, unsigned int __mask);
|
||
|
|
void _RTLENTRY _fpreset(void);
|
||
|
|
unsigned int _RTLENTRY _status87(void);
|
||
|
|
|
||
|
|
/* Microsoft C compatible IEEE functions */
|
||
|
|
|
||
|
|
double _RTLENTRY _EXPFUNC _chgsign(double __d);
|
||
|
|
double _RTLENTRY _EXPFUNC _copysign(double __da, double __db);
|
||
|
|
int _RTLENTRY _EXPFUNC _finite(double __d);
|
||
|
|
int _RTLENTRY _EXPFUNC _fpclass(double __d);
|
||
|
|
int _RTLENTRY _EXPFUNC _isnan(double __d);
|
||
|
|
double _RTLENTRY _EXPFUNC _logb(double __d);
|
||
|
|
double _RTLENTRY _EXPFUNC _scalb(double __d, long __exp);
|
||
|
|
double _RTLENTRY _EXPFUNC _nextafter(double __da, double __db);
|
||
|
|
|
||
|
|
long double _RTLENTRY _EXPFUNC _chgsignl(long double __ld);
|
||
|
|
long double _RTLENTRY _EXPFUNC _copysignl(long double __lda, long double __ldb);
|
||
|
|
int _RTLENTRY _EXPFUNC _finitel(long double __ld);
|
||
|
|
int _RTLENTRY _EXPFUNC _fpclassl(long double __ld);
|
||
|
|
int _RTLENTRY _EXPFUNC _isnanl(long double __ld);
|
||
|
|
long double _RTLENTRY _EXPFUNC _logbl(long double __ld);
|
||
|
|
long double _RTLENTRY _EXPFUNC _scalbl(long double __ld, long __exp);
|
||
|
|
long double _RTLENTRY _EXPFUNC _nextafterl(long double __lda, long double __ldb);
|
||
|
|
|
||
|
|
#define _controlfp(__a, __b) _control87((__a), ((__b)& (~EM_DENORMAL)))
|
||
|
|
#define _statusfp _status87
|
||
|
|
#define _clearfp _clear87
|
||
|
|
|
||
|
|
/* Return values for _fpclass() and _fpclassl() */
|
||
|
|
|
||
|
|
#define _FPCLASS_UNSUP 0x0000 /* Unsupported IEEE format */
|
||
|
|
#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 /* Negative Zero (-0.0) */
|
||
|
|
#define _FPCLASS_PZ 0x0040 /* Positive Zero (+0.0) */
|
||
|
|
#define _FPCLASS_PD 0x0080 /* Positive Denormal */
|
||
|
|
#define _FPCLASS_PN 0x0100 /* Positive Normal */
|
||
|
|
#define _FPCLASS_PINF 0x0200 /* Positive Infinity */
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} // "C"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !defined(__STDC__)
|
||
|
|
|
||
|
|
/* 387 Status Word format */
|
||
|
|
|
||
|
|
#define SW_INVALID 0x0001 /* Invalid operation */
|
||
|
|
#define SW_DENORMAL 0x0002 /* Denormalized operand */
|
||
|
|
#define SW_ZERODIVIDE 0x0004 /* Zero divide */
|
||
|
|
#define SW_OVERFLOW 0x0008 /* Overflow */
|
||
|
|
#define SW_UNDERFLOW 0x0010 /* Underflow */
|
||
|
|
#define SW_INEXACT 0x0020 /* Precision (Inexact result) */
|
||
|
|
#define SW_STACKFAULT 0x0040 /* Stack fault */
|
||
|
|
|
||
|
|
/* 387 Control Word format */
|
||
|
|
|
||
|
|
#define MCW_EM 0x003f /* interrupt Exception Masks*/
|
||
|
|
#define EM_INVALID 0x0001 /* invalid */
|
||
|
|
#define EM_DENORMAL 0x0002 /* denormal */
|
||
|
|
#define EM_ZERODIVIDE 0x0004 /* zero divide */
|
||
|
|
#define EM_OVERFLOW 0x0008 /* overflow */
|
||
|
|
#define EM_UNDERFLOW 0x0010 /* underflow */
|
||
|
|
#define EM_INEXACT 0x0020 /* inexact (precision) */
|
||
|
|
|
||
|
|
#define MCW_IC 0x1000 /* Infinity Control */
|
||
|
|
#define IC_AFFINE 0x1000 /* affine */
|
||
|
|
#define IC_PROJECTIVE 0x0000 /* projective */
|
||
|
|
|
||
|
|
#define MCW_RC 0x0c00 /* Rounding Control */
|
||
|
|
#define RC_CHOP 0x0c00 /* chop */
|
||
|
|
#define RC_UP 0x0800 /* up */
|
||
|
|
#define RC_DOWN 0x0400 /* down */
|
||
|
|
#define RC_NEAR 0x0000 /* near */
|
||
|
|
|
||
|
|
#define MCW_PC 0x0300 /* Precision Control */
|
||
|
|
#define PC_24 0x0000 /* 24 bits */
|
||
|
|
#define PC_53 0x0200 /* 53 bits */
|
||
|
|
#define PC_64 0x0300 /* 64 bits */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} // std
|
||
|
|
#endif /* __cplusplus */
|
||
|
|
|
||
|
|
/* 387 Initial Control Word */
|
||
|
|
/* use affine infinity, mask underflow and precision exceptions */
|
||
|
|
|
||
|
|
#define CW_DEFAULT _default87
|
||
|
|
extern unsigned int _RTLENTRY _default87;
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
namespace std {
|
||
|
|
#endif /* __cplusplus */
|
||
|
|
|
||
|
|
/*
|
||
|
|
SIGFPE signal error types (for integer & float exceptions).
|
||
|
|
*/
|
||
|
|
#define FPE_INTOVFLOW 126 /* 80x86 Interrupt on overflow */
|
||
|
|
#define FPE_INTDIV0 127 /* 80x86 Integer divide by zero */
|
||
|
|
|
||
|
|
#define FPE_INVALID 129 /* 80x87 invalid operation */
|
||
|
|
#define FPE_ZERODIVIDE 131 /* 80x87 divide by zero */
|
||
|
|
#define FPE_OVERFLOW 132 /* 80x87 arithmetic overflow */
|
||
|
|
#define FPE_UNDERFLOW 133 /* 80x87 arithmetic underflow */
|
||
|
|
#define FPE_INEXACT 134 /* 80x87 precision loss */
|
||
|
|
#define FPE_STACKFAULT 135 /* 80x87 stack overflow */
|
||
|
|
#define FPE_EXPLICITGEN 140 /* When SIGFPE is raise()'d */
|
||
|
|
|
||
|
|
/*
|
||
|
|
SIGSEGV signal error types.
|
||
|
|
*/
|
||
|
|
#define SEGV_BOUND 10 /* A BOUND violation (SIGSEGV) */
|
||
|
|
#define SEGV_EXPLICITGEN 11 /* When SIGSEGV is raise()'d */
|
||
|
|
#define SEGV_ACCESS 12 /* Access violation */
|
||
|
|
#define SEGV_STACK 13 /* Unable to grow stack */
|
||
|
|
|
||
|
|
/*
|
||
|
|
SIGILL signal error types.
|
||
|
|
*/
|
||
|
|
#define ILL_EXECUTION 20 /* Illegal operation exception */
|
||
|
|
#define ILL_EXPLICITGEN 21 /* When SIGILL is raise()'d */
|
||
|
|
#define ILL_PRIVILEGED 22 /* Privileged instruction */
|
||
|
|
#define ILL_BREAKPOINT 23 /* Breakpoint exception */
|
||
|
|
#define ILL_SINGLE_STEP 24 /* Singlestep exception */
|
||
|
|
|
||
|
|
#endif /* !__STDC__ */
|
||
|
|
|
||
|
|
|
||
|
|
#if !defined(RC_INVOKED)
|
||
|
|
|
||
|
|
#if defined(__STDC__)
|
||
|
|
#pragma warn .nak
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* !RC_INVOKED */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} // std
|
||
|
|
#endif /* __cplusplus */
|
||
|
|
|
||
|
|
#endif /* __FLOAT_H */
|
||
|
|
|
||
|
|
#if defined(__cplusplus) && !defined(__USING_CNAME__) && !defined(__FLOAT_H_USING_LIST)
|
||
|
|
#define __FLOAT_H_USING_LIST
|
||
|
|
using std::_chgsign;
|
||
|
|
using std::_chgsignl;
|
||
|
|
using std::_clear87;
|
||
|
|
using std::_control87;
|
||
|
|
using std::_copysign;
|
||
|
|
using std::_copysignl;
|
||
|
|
using std::_finite;
|
||
|
|
using std::_finitel;
|
||
|
|
using std::_fpclass;
|
||
|
|
using std::_fpclassl;
|
||
|
|
using std::_fpreset;
|
||
|
|
using std::_isnan;
|
||
|
|
using std::_isnanl;
|
||
|
|
using std::_logb;
|
||
|
|
using std::_logbl;
|
||
|
|
using std::_max_dble;
|
||
|
|
using std::_max_flt;
|
||
|
|
using std::_max_ldble;
|
||
|
|
using std::_nextafter;
|
||
|
|
using std::_nextafterl;
|
||
|
|
using std::_scalb;
|
||
|
|
using std::_scalbl;
|
||
|
|
using std::_status87;
|
||
|
|
using std::_tiny_ldble;
|
||
|
|
#endif /* __USING_CNAME__ */
|