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FLOAT.H
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C/C++ Source or Header
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1997-02-28
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6KB
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186 lines
/* float.h
Defines implementation specific macros for dealing with
floating point.
*/
/*
* C/C++ Run Time Library - Version 8.0
*
* Copyright (c) 1987, 1997 by Borland International
* All Rights Reserved.
*
*/
/* $Revision: 8.3 $ */
#ifndef __FLOAT_H
#define __FLOAT_H
#if !defined( ___DEFS_H )
#include <_defs.h>
#endif
#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
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;
#ifdef __cplusplus
extern "C" {
#endif
unsigned int _RTLENTRY _clear87(void);
unsigned int _RTLENTRY _control87(unsigned int __newcw, unsigned int __mask);
void _RTLENTRY _fpreset(void);
unsigned int _RTLENTRY _status87(void);
int _RTLENTRY _isnan (double d);
int _RTLENTRY _isnanl (long double ld);
int _RTLENTRY _finite (double d);
int _RTLENTRY _finitel (long double ld);
#ifdef __cplusplus
}
#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 */
/* 387 Initial Control Word */
/* use affine infinity, mask underflow and precision exceptions */
#define CW_DEFAULT _default87
extern unsigned int _RTLENTRY _default87;
/*
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 */
#if defined(__OS2__) || defined(__WIN32__)
#define SEGV_ACCESS 12 /* Access violation */
#define SEGV_STACK 13 /* Unable to grow stack */
#endif
/*
SIGILL signal error types.
*/
#define ILL_EXECUTION 20 /* Illegal operation exception */
#define ILL_EXPLICITGEN 21 /* When SIGILL is raise()'d */
#if defined(__OS2__) || defined(__WIN32__)
#define ILL_PRIVILEGED 22 /* Privileged instruction */
#endif
#endif /* !__STDC__ */
#if !defined(RC_INVOKED)
#if defined(__STDC__)
#pragma warn .nak
#endif
#endif /* !RC_INVOKED */
#endif /* __FLOAT_H */