view tomsfastmath/src/addsub/fp_cmp_mag.c @ 647:939cd3e22c87 dropbear-tfm

- Fix constraints so we don't get warned about uninitialised variable (it isn't used as input by the asm)
author Matt Johnston <matt@ucc.asn.au>
date Wed, 30 Nov 2011 23:15:21 +0800
parents a362b62d38b2
children
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/* TomsFastMath, a fast ISO C bignum library.
 * 
 * This project is meant to fill in where LibTomMath
 * falls short.  That is speed ;-)
 *
 * This project is public domain and free for all purposes.
 * 
 * Tom St Denis, [email protected]
 */
#include <tfm.h>

int fp_cmp_mag(fp_int *a, fp_int *b)
{
   int x;

   if (a->used > b->used) {
      return FP_GT;
   } else if (a->used < b->used) {
      return FP_LT;
   } else {
      for (x = a->used - 1; x >= 0; x--) {
          if (a->dp[x] > b->dp[x]) {
             return FP_GT;
          } else if (a->dp[x] < b->dp[x]) {
             return FP_LT;
          }
      }
   }
   return FP_EQ;
}


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