Source code of Windows XP (NT5)
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/* values used by math functions -- IEEE 754 version */#include "wctype.h"
#include "xmath.h"
_STD_BEGIN
/* macros */#define NBITS (48 + _DOFF)
#if _D0
#define INIT(w0) {0, 0, 0, w0}
#define INIT2(w0, w1) {w1, 0, 0, w0}
#else
#define INIT(w0) {w0, 0, 0, 0}
#define INIT2(w0, w1) {w0, 0, 0, w1}
#endif
/* static data */_CRTIMP2 const _Dconst _Denorm = {INIT2(0, 1)};_CRTIMP2 const _Dconst _Eps = {INIT((_DBIAS - NBITS - 1) << _DOFF)};_CRTIMP2 const _Dconst _Hugeval = {INIT(_DMAX << _DOFF)};_CRTIMP2 const _Dconst _Inf = {INIT(_DMAX << _DOFF)};_CRTIMP2 const _Dconst _Nan = {INIT(_DSIGN | (_DMAX << _DOFF) | (1 << (_DOFF - 1)))};_CRTIMP2 const _Dconst _Rteps = {INIT((_DBIAS - NBITS / 2) << _DOFF)};_CRTIMP2 const _Dconst _Snan = {INIT(_DSIGN | (_DMAX << _DOFF))};_CRTIMP2 const double _Xbig = (NBITS + 1) * 347L / 1000;
#if defined(__CENTERLINE__)
#define _DYNAMIC_INIT_CONST(x) \
(x._D = *(double *)(void *)(x._W))double _centerline_double_dynamic_inits =_DYNAMIC_INIT_CONST(_Hugeval),_DYNAMIC_INIT_CONST(_Eps),_DYNAMIC_INIT_CONST(_Inf),_DYNAMIC_INIT_CONST(_Nan),_DYNAMIC_INIT_CONST(_Rteps);#endif
_STD_END
/*
* Copyright (c) 1994 by P.J. Plauger. ALL RIGHTS RESERVED. * Consult your license regarding permissions and restrictions. */
/*
941029 pjp: added _STD machinery950222 pjp: added signaling NaN, denorm minimum for C++ */
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