kc3-lang/libtommath/bn_mp_cmp_d.c

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• 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

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• bn_mp_cmp_d.c

• #include "tommath_private.h"
  #ifdef BN_MP_CMP_D_C
  /* LibTomMath, multiple-precision integer library -- Tom St Denis */
  /* SPDX-License-Identifier: Unlicense */
  
  /* compare a digit */
  mp_ord mp_cmp_d(const mp_int *a, mp_digit b)
  {
     /* compare based on sign */
     if (a->sign == MP_NEG) {
        return MP_LT;
     }
  
     /* compare based on magnitude */
     if (a->used > 1) {
        return MP_GT;
     }
  
     /* compare the only digit of a to b */
     if (a->dp[0] > b) {
        return MP_GT;
     } else if (a->dp[0] < b) {
        return MP_LT;
     } else {
        return MP_EQ;
     }
  }
  #endif
  

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