Line data Source code
1 : #include <tommath.h>
2 : #ifdef BN_MP_ABS_C
3 : /* LibTomMath, multiple-precision integer library -- Tom St Denis
4 : *
5 : * LibTomMath is a library that provides multiple-precision
6 : * integer arithmetic as well as number theoretic functionality.
7 : *
8 : * The library was designed directly after the MPI library by
9 : * Michael Fromberger but has been written from scratch with
10 : * additional optimizations in place.
11 : *
12 : * The library is free for all purposes without any express
13 : * guarantee it works.
14 : *
15 : * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
16 : */
17 :
18 : /* b = |a|
19 : *
20 : * Simple function copies the input and fixes the sign to positive
21 : */
22 : int
23 0 : mp_abs (mp_int * a, mp_int * b)
24 : {
25 : int res;
26 :
27 : /* copy a to b */
28 0 : if (a != b) {
29 0 : if ((res = mp_copy (a, b)) != MP_OKAY) {
30 0 : return res;
31 : }
32 : }
33 :
34 : /* force the sign of b to positive */
35 0 : b->sign = MP_ZPOS;
36 :
37 0 : return MP_OKAY;
38 : }
39 : #endif
40 :
41 : /* $Source: /cvs/libtom/libtommath/bn_mp_abs.c,v $ */
42 : /* $Revision: 1.4 $ */
43 : /* $Date: 2006/12/28 01:25:13 $ */
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