bn_mp_zero.c 870 B

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  1. #include <tommath.h>
  2. #ifdef BN_MP_ZERO_C
  3. /* LibTomMath, multiple-precision integer library -- Tom St Denis
  4. *
  5. * LibTomMath is a library that provides multiple-precision
  6. * integer arithmetic as well as number theoretic functionality.
  7. *
  8. * The library was designed directly after the MPI library by
  9. * Michael Fromberger but has been written from scratch with
  10. * additional optimizations in place.
  11. *
  12. * The library is free for all purposes without any express
  13. * guarantee it works.
  14. *
  15. * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
  16. */
  17. /* set to zero */
  18. void mp_zero (mp_int * a)
  19. {
  20. int n;
  21. mp_digit *tmp;
  22. a->sign = MP_ZPOS;
  23. a->used = 0;
  24. tmp = a->dp;
  25. for (n = 0; n < a->alloc; n++) {
  26. *tmp++ = 0;
  27. }
  28. }
  29. #endif
  30. /* $Source: /cvs/libtom/libtommath/bn_mp_zero.c,v $ */
  31. /* $Revision: 1.3 $ */
  32. /* $Date: 2006/03/31 14:18:44 $ */