kc3-lang/libtommath/bn_mp_tc_div_2d.c

• Show log

  Commit

• Hash : 4534056c
  Author :
  Date : 2019-05-13T00:22:18
  

  use enums mp_err, mp_ord, mp_bool, mp_sign * MP_USE_ENUMS enables enums * Wc++-compat catches some implicit conversions if MP_USE_ENUMS is defined * 100% backwards compatible API/ABI if MP_USE_ENUMS is not defined

Download

• 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 */
  mp_err mp_tc_div_2d(const mp_int *a, int b, mp_int *c)
  {
     mp_err 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
  

Download