kc3-lang/libtommath/mp_cmp_mag.c

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• Hash : 7a68f128
  Author :
  Date : 2019-10-19T16:24:39
  

  Execute move.sh - Rename files from bn_* to match the function names. * git blame <renamed-file> is not affected * git log --follow <renamed-file> can be used to show log across renames

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• mp_cmp_mag.c

• #include "tommath_private.h"
  #ifdef MP_CMP_MAG_C
  /* LibTomMath, multiple-precision integer library -- Tom St Denis */
  /* SPDX-License-Identifier: Unlicense */
  
  /* compare maginitude of two ints (unsigned) */
  mp_ord mp_cmp_mag(const mp_int *a, const mp_int *b)
  {
     int     n;
     const mp_digit *tmpa, *tmpb;
  
     /* compare based on # of non-zero digits */
     if (a->used > b->used) {
        return MP_GT;
     }
  
     if (a->used < b->used) {
        return MP_LT;
     }
  
     /* alias for a */
     tmpa = a->dp + (a->used - 1);
  
     /* alias for b */
     tmpb = b->dp + (a->used - 1);
  
     /* compare based on digits  */
     for (n = 0; n < a->used; ++n, --tmpa, --tmpb) {
        if (*tmpa > *tmpb) {
           return MP_GT;
        }
  
        if (*tmpa < *tmpb) {
           return MP_LT;
        }
     }
     return MP_EQ;
  }
  #endif
  

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