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/* xmath.h internal header for Microsoft C */ #ifndef _XMATH
#define _XMATH
#include <wctype.h>
#include <errno.h>
#include <math.h>
#include <stddef.h>
#ifndef _YMATH
#include <ymath.h>
#endif
_STD_BEGIN /* FLOAT PROPERTIES */ #define _DBIAS 0x3fe
#define _DOFF 4
#define _FBIAS 0x7e
#define _FOFF 7
#define _FRND 1
#define _D0 3 /* little-endian, small long doubles */
#define _D1 2
#define _D2 1
#define _D3 0
#define _DLONG 0
#define _LBIAS 0x3fe
#define _LOFF 4
/* IEEE 754 double properties */ #define _DFRAC ((1 << _DOFF) - 1)
#define _DMASK (0x7fff & ~_DFRAC)
#define _DMAX ((1 << (15 - _DOFF)) - 1)
#define _DSIGN 0x8000
#define DSIGN(x) (((unsigned short *)&(x))[_D0] & _DSIGN)
#define HUGE_EXP (int)(_DMAX * 900L / 1000)
#define HUGE_RAD 3.37e9 /* ~pi * 2^30 */
#define SAFE_EXP (_DMAX >> 1)
/* IEEE 754 float properties */ #define _FFRAC ((1 << _FOFF) - 1)
#define _FMASK (0x7fff & ~_FFRAC)
#define _FMAX ((1 << (15 - _FOFF)) - 1)
#define _FSIGN 0x8000
#define FSIGN(x) (((unsigned short *)&(x))[_F0] & _FSIGN)
#define FHUGE_EXP (int)(_FMAX * 900L / 1000)
#define FHUGE_RAD 3.37e9 /* ~pi * 2^30 */
#define FSAFE_EXP (_FMAX >> 1)
#define _F0 1 /* little-endian order */
#define _F1 0
/* IEEE 754 long double properties */ #define _LFRAC (-1)
#define _LMASK 0x7fff
#define _LMAX 0x7fff
#define _LSIGN 0x8000
#define LSIGN(x) (((unsigned short *)&(x))[_L0] & _LSIGN)
#define LHUGE_EXP (int)(_LMAX * 900L / 1000)
#define LHUGE_RAD 3.37e9 /* ~pi * 2^30 */
#define LSAFE_EXP (_LMAX >> 1)
#define _L0 4 /* little-endian order */
#define _L1 3
#define _L2 2
#define _L3 1
#define _L4 0
/* return values for testing functions */ #define FINITE _FINITE
#define INF _INFCODE
#define NAN _NANCODE
_C_LIB_DECL /* double declarations */ _CRTIMP double _Atan(double, unsigned short); _CRTIMP short _Dint(double *, short); _CRTIMP short _Dnorm(unsigned short *); _CRTIMP short _Dscale(double *, long); _CRTIMP double _Dtento(double, long); _CRTIMP short _Dunscale(short *, double *); _CRTIMP double _Poly(double, const double *, int); extern _CRTIMP const _Dconst _Eps, _Rteps; extern _CRTIMP const double _Xbig; /* float declarations */ _CRTIMP float _FAtan(float, unsigned short); _CRTIMP short _FDint(float *, short); _CRTIMP short _FDnorm(unsigned short *); _CRTIMP short _FDscale(float *, long); _CRTIMP float _FDtento(float, long); _CRTIMP short _FDunscale(short *, float *); _CRTIMP float _FPoly(float, const float *, int); extern _CRTIMP const _Dconst _FEps, _FRteps; extern _CRTIMP const float _FXbig; /* long double functions */ _CRTIMP long double _LAtan(long double, unsigned short); _CRTIMP short _LDint(long double *, short); _CRTIMP short _LDnorm(unsigned short *); _CRTIMP short _LDscale(long double *, long); _CRTIMP long double _LDtento(long double, long); _CRTIMP short _LDunscale(short *, long double *); _CRTIMP long double _LPoly(long double, const long double *, int); extern _CRTIMP const _Dconst _LEps, _LRteps; extern _CRTIMP const long double _LXbig; _END_C_LIB_DECL _STD_END #endif /* _XMATH */
/*
* Copyright (c) 1994 by P.J. Plauger. ALL RIGHTS RESERVED. * Consult your license regarding permissions and restrictions. */
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