bn_mp_cmp.c revision 1.1.1.1 
1/*	$NetBSD: bn_mp_cmp.c,v 1.1.1.1 2011/04/13 18:14:54 elric 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)*/
21int
22mp_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 */
46