crypto/external/bsd/heimdal/dist/lib/hcrypto/libtommath/bn_mp_cmp.c

   1 /*      $NetBSD: bn_mp_cmp.c,v 1.1.1.2 2014/04/24 12:45:31 pettai Exp $ */
   2
   3 #include <tommath.h>
   4 #ifdef BN_MP_CMP_C
   5 /* LibTomMath, multiple-precision integer library -- Tom St Denis
   6  *
   7  * LibTomMath is a library that provides multiple-precision
   8  * integer arithmetic as well as number theoretic functionality.
   9  *
  10  * The library was designed directly after the MPI library by
  11  * Michael Fromberger but has been written from scratch with
  12  * additional optimizations in place.
  13  *
  14  * The library is free for all purposes without any express
  15  * guarantee it works.
  16  *
  17  * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
  18  */
  19
  20 /* compare two ints (signed)*/
  21 int
  22 mp_cmp (mp_int * a, mp_int * b)
  23 {
  24   /* compare based on sign */
  25   if (a->sign != b->sign) {
  26      if (a->sign == MP_NEG) {
  27         return MP_LT;
  28      } else {
  29         return MP_GT;
  30      }
  31   }
  32
  33   /* compare digits */
  34   if (a->sign == MP_NEG) {
  35      /* if negative compare opposite direction */
  36      return mp_cmp_mag(b, a);
  37   } else {
  38      return mp_cmp_mag(a, b);
  39   }
  40 }
  41 #endif
  42
  43 /* Source: /cvs/libtom/libtommath/bn_mp_cmp.c,v  */
  44 /* Revision: 1.4  */
  45 /* Date: 2006/12/28 01:25:13  */