Mercurial > dropbear
comparison bn_mp_cmp.c @ 1:22d5cf7d4b1a libtommath
Renaming branch
author | Matt Johnston <matt@ucc.asn.au> |
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date | Mon, 31 May 2004 18:23:46 +0000 |
parents | |
children | d29b64170cf0 |
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-1:000000000000 | 1:22d5cf7d4b1a |
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1 /* LibTomMath, multiple-precision integer library -- Tom St Denis | |
2 * | |
3 * LibTomMath is a library that provides multiple-precision | |
4 * integer arithmetic as well as number theoretic functionality. | |
5 * | |
6 * The library was designed directly after the MPI library by | |
7 * Michael Fromberger but has been written from scratch with | |
8 * additional optimizations in place. | |
9 * | |
10 * The library is free for all purposes without any express | |
11 * guarantee it works. | |
12 * | |
13 * Tom St Denis, [email protected], http://math.libtomcrypt.org | |
14 */ | |
15 #include <tommath.h> | |
16 | |
17 /* compare two ints (signed)*/ | |
18 int | |
19 mp_cmp (mp_int * a, mp_int * b) | |
20 { | |
21 /* compare based on sign */ | |
22 if (a->sign != b->sign) { | |
23 if (a->sign == MP_NEG) { | |
24 return MP_LT; | |
25 } else { | |
26 return MP_GT; | |
27 } | |
28 } | |
29 | |
30 /* compare digits */ | |
31 if (a->sign == MP_NEG) { | |
32 /* if negative compare opposite direction */ | |
33 return mp_cmp_mag(b, a); | |
34 } else { | |
35 return mp_cmp_mag(a, b); | |
36 } | |
37 } |