1 /* $NetBSD: bn_reverse.c,v 1.1.1.2 2014/04/24 12:45:31 pettai Exp $ */
2
3 #include <tommath.h>
4 #ifdef BN_REVERSE_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 /* reverse an array, used for radix code */
21 void
bn_reverse(unsigned char * s,int len)22 bn_reverse (unsigned char *s, int len)
23 {
24 int ix, iy;
25 unsigned char t;
26
27 ix = 0;
28 iy = len - 1;
29 while (ix < iy) {
30 t = s[ix];
31 s[ix] = s[iy];
32 s[iy] = t;
33 ++ix;
34 --iy;
35 }
36 }
37 #endif
38
39 /* Source: /cvs/libtom/libtommath/bn_reverse.c,v */
40 /* Revision: 1.4 */
41 /* Date: 2006/12/28 01:25:13 */
42