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Leaked source code of windows server 2003
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windows-server-2003/base/crts/crtw32/stdcpp/xvalues.c

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4 years ago
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  1. /* values used by math functions -- IEEE 754 version */
  2. #include "xmath.h"
  3. _STD_BEGIN
  5. /* macros */
  6. #define NBITS (48 + _DOFF)
  7. #if _D0 == 0
  8. #define INIT(w0) {w0, 0, 0, 0}
  9. #define INIT2(w0, w1) {w0, 0, 0, w1}
  10. #else
  11. #define INIT(w0) {0, 0, 0, w0}
  12. #define INIT2(w0, w1) {w1, 0, 0, w0}
  13. #endif
  15. /* static data */
  16. _CRTIMP2 const _Dconst _Denorm = {INIT2(0, 1)};
  17. _CRTIMP2 const _Dconst _Eps = {INIT((_DBIAS - NBITS - 1) << _DOFF)};
  18. _CRTIMP2 const _Dconst _Hugeval = {INIT(_DMAX << _DOFF)};
  19. _CRTIMP2 const _Dconst _Inf = {INIT(_DMAX << _DOFF)};
  20. _CRTIMP2 const _Dconst _Nan = {INIT(_DSIGN | (_DMAX << _DOFF)
  21. | (1 << (_DOFF - 1)))};
  22. _CRTIMP2 const _Dconst _Rteps = {INIT((_DBIAS - NBITS / 2) << _DOFF)};
  23. _CRTIMP2 const _Dconst _Snan = {INIT(_DSIGN | (_DMAX << _DOFF)
  24. | (1 << (_DOFF - 1)))};
  26. _CRTIMP2 const double _Xbig = (NBITS + 1) * 347L / 1000;
  27. _CRTIMP2 const double _Zero = 0.0;
  28. _STD_END
  30. /*
  31. * Copyright (c) 1992-2001 by P.J. Plauger. ALL RIGHTS RESERVED.
  32. * Consult your license regarding permissions and restrictions.
  33. V3.10:0009 */