1 #include <tommath.h>
2 #ifdef BN_REVERSE_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://math.libtomcrypt.com
16 */
17
18 /* reverse an array, used for radix code */
19 void
bn_reverse(unsigned char * s,int len)20 bn_reverse (unsigned char *s, int len)
21 {
22 int ix, iy;
23 unsigned char t;
24
25 ix = 0;
26 iy = len - 1;
27 while (ix < iy) {
28 t = s[ix];
29 s[ix] = s[iy];
30 s[iy] = t;
31 ++ix;
32 --iy;
33 }
34 }
35 #endif
36
37 /* $Source: /cvs/libtom/libtommath/bn_reverse.c,v $ */
38 /* $Revision: 1.3 $ */
39 /* $Date: 2006/03/31 14:18:44 $ */
40