c3-lang/libtommath/bn_mp_tc_div_2d.c

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• Hash : ff561404
  Author :
  Date : 2019-04-07T15:29:11
  

  shorter headers

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• bn_mp_tc_div_2d.c

• #include "tommath_private.h"
  #ifdef BN_MP_TC_DIV_2D_C
  /* LibTomMath, multiple-precision integer library -- Tom St Denis */
  /* SPDX-License-Identifier: Unlicense */
  
  /* two complement right shift */
  int mp_tc_div_2d(const mp_int *a, int b, mp_int *c)
  {
     int res;
     if (a->sign == MP_ZPOS) {
        return mp_div_2d(a, b, c, NULL);
     }
  
     res = mp_add_d(a, 1uL, c);
     if (res != MP_OKAY) {
        return res;
     }
  
     res = mp_div_2d(c, b, c, NULL);
     return (res == MP_OKAY) ? mp_sub_d(c, 1uL, c) : res;
  }
  #endif
  

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