1 /*	$NetBSD: bn_mp_cmp_d.c,v 1.1.1.1 2011/04/13 18:14:54 elric Exp $	*/
2 
3 #include <tommath.h>
4 #ifdef BN_MP_CMP_D_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 a digit */
21 int mp_cmp_d(mp_int * a, mp_digit b)
22 {
23   /* compare based on sign */
24   if (a->sign == MP_NEG) {
25     return MP_LT;
26   }
27 
28   /* compare based on magnitude */
29   if (a->used > 1) {
30     return MP_GT;
31   }
32 
33   /* compare the only digit of a to b */
34   if (a->dp[0] > b) {
35     return MP_GT;
36   } else if (a->dp[0] < b) {
37     return MP_LT;
38   } else {
39     return MP_EQ;
40   }
41 }
42 #endif
43 
44 /* Source: /cvs/libtom/libtommath/bn_mp_cmp_d.c,v */
45 /* Revision: 1.4 */
46 /* Date: 2006/12/28 01:25:13 */
47