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