windows-nt/Source/XPSP1/NT/base/crts/crtw32/stdcpp/xfvalues.c
2020-09-26 16:20:57 +08:00

33 lines
981 B
C

/* values used by math functions -- IEEE 754 float version */
#include "xmath.h"
_STD_BEGIN
/* macros */
#define NBITS (16 + _FOFF)
#if _D0 == 0
#define INIT(w0) {w0, 0}
#define INIT2(w0, w1) {w0, w1}
#else
#define INIT(w0) {0, w0}
#define INIT2(w0, w1) {w1, w0}
#endif
/* static data */
_CRTIMP2 const _Dconst _FDenorm = {INIT2(0, 1)};
_CRTIMP2 const _Dconst _FEps = {INIT((_FBIAS - NBITS - 1) << _FOFF)};
_CRTIMP2 const _Dconst _FInf = {INIT(_FMAX << _FOFF)};
_CRTIMP2 const _Dconst _FNan = {INIT(_FSIGN | (_FMAX << _FOFF)
| (1 << (_FOFF - 1)))};
_CRTIMP2 const _Dconst _FSnan = {INIT(_FSIGN | (_FMAX << _FOFF)
| (1 << (_FOFF - 1)))};
_CRTIMP2 const _Dconst _FRteps = {INIT((_FBIAS - NBITS / 2) << _FOFF)};
_CRTIMP2 const float _FXbig = (NBITS + 1) * 347L / 1000;
_CRTIMP2 const float _FZero = 0.0F;
_STD_END
/*
* Copyright (c) 1992-2001 by P.J. Plauger. ALL RIGHTS RESERVED.
* Consult your license regarding permissions and restrictions.
V3.10:0009 */