source: Daodan/MSYS2/mingw32/i686-w64-mingw32/include/xmath.h@ 1181

/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the mingw-w64 runtime package.
 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
 */
#ifndef _XMATH
#define _XMATH
#include <errno.h>
#include <math.h>
#include <stddef.h>
#include <ymath.h>

_C_STD_BEGIN

#define _DBIAS 0x3fe
#define _DOFF 4
#define _FBIAS 0x7e
#define _FOFF 7
#define _FRND 1

#define _D0 3
#define _D1 2
#define _D2 1
#define _D3 0
#define _DLONG 0
#define _LBIAS 0x3fe
#define _LOFF 4

#define _DFRAC ((unsigned short)((1 << _DOFF) - 1))
#define _DMASK ((unsigned short)(0x7fff & ~_DFRAC))
#define _DMAX ((unsigned short)((1 << (15 - _DOFF)) - 1))
#define _DSIGN ((unsigned short)0x8000)
#define DSIGN(x) (((unsigned short *)&(x))[_D0] & _DSIGN)
#define HUGE_EXP (int)(_DMAX *900L / 1000)
#define HUGE_RAD 2.73e9
#define SAFE_EXP ((unsigned short)(_DMAX >> 1))

#define _FFRAC ((unsigned short)((1 << _FOFF) - 1))
#define _FMASK ((unsigned short)(0x7fff & ~_FFRAC))
#define _FMAX ((unsigned short)((1 << (15 - _FOFF)) - 1))
#define _FSIGN ((unsigned short)0x8000)
#define FSIGN(x) (((unsigned short *)&(x))[_F0] & _FSIGN)
#define FHUGE_EXP (int)(_FMAX *900L / 1000)
#define FHUGE_RAD 31.8
#define FSAFE_EXP ((unsigned short)(_FMAX >> 1))

#define _F0 1
#define _F1 0

#define _LFRAC ((unsigned short)(-1))
#define _LMASK ((unsigned short)0x7fff)
#define _LMAX ((unsigned short)0x7fff)
#define _LSIGN ((unsigned short)0x8000)
#define LSIGN(x) (((unsigned short *)&(x))[_L0] & _LSIGN)
#define LHUGE_EXP (int)(_LMAX *900L / 1000)
#define LHUGE_RAD 2.73e9
#define LSAFE_EXP ((unsigned short)(_LMAX >> 1))

#define _L0 3
#define _L1 2
#define _L2 1
#define _L3 0
#define _L4 xxx

#define FINITE _FINITE
#define INF _INFCODE
#define NAN _NANCODE

#define FL_ERR 0
#define FL_DEC 1
#define FL_HEX 2
#define FL_INF 3
#define FL_NAN 4
#define FL_NEG 8

_C_LIB_DECL

_CRTIMP int __cdecl _Stopfx(const char **,char **);
_CRTIMP int __cdecl _Stoflt(const char *,const char *,char **,long[],int);
_CRTIMP int __cdecl _Stoxflt(const char *,const char *,char **,long[],int);
_CRTIMP int __cdecl _WStopfx(const wchar_t **,wchar_t **);
_CRTIMP int __cdecl _WStoflt(const wchar_t *,const wchar_t *,wchar_t **,long[],int);
_CRTIMP int __cdecl _WStoxflt(const wchar_t *,const wchar_t *,wchar_t **,long[],int);
_CRTIMP short __cdecl _Dnorm(unsigned short *);
_CRTIMP short __cdecl _Dscale(double *,long);
_CRTIMP short __cdecl _Dunscale(short *,double *);
_CRTIMP double __cdecl _Poly(double,const double *,int);

extern __declspec(dllimport) _Dconst _Eps,_Rteps;
extern __declspec(dllimport) double _Xbig;

_CRTIMP short __cdecl _FDnorm(unsigned short *);
_CRTIMP short __cdecl _FDscale(float *,long);
_CRTIMP short __cdecl _FDunscale(short *,float *);

extern __declspec(dllimport) _Dconst _FEps,_FRteps;
extern __declspec(dllimport) float _FXbig;

_CRTIMP short __cdecl _LDnorm(unsigned short *);
_CRTIMP short __cdecl _LDscale(long double *,long);
_CRTIMP short __cdecl _LDunscale(short *,long double *);
_CRTIMP long double __cdecl _LPoly(long double,const long double *,int);

extern __declspec(dllimport) _Dconst _LEps,_LRteps;
extern __declspec(dllimport) long double _LXbig;
_END_C_LIB_DECL
_C_STD_END
#endif