mp_cmp.c

   1 #include "tommath_private.h"
   2 #ifdef MP_CMP_C
   3 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
   4 /* SPDX-License-Identifier: Unlicense */
   5
   6 /* compare two ints (signed)*/
   7 mp_ord mp_cmp(const mp_int *a, const mp_int *b)
   8 {
   9    /* compare based on sign */
  10    if (a->sign != b->sign) {
  11       return mp_isneg(a) ? MP_LT : MP_GT;
  12    }
  13
  14    /* if negative compare opposite direction */
  15    if (mp_isneg(a)) {
  16       MP_EXCH(const mp_int *, a, b);
  17    }
  18
  19    return mp_cmp_mag(a, b);
  20 }
  21 #endif