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comparison libtommath/bn_reverse.c @ 330:5488db2e9e4e

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merge of 332f709a4cb39cde4cedab7c3be89e05f3023067 and ca4ca78b82c5d430c69ce01bf794e8886ce81431
author Matt Johnston <matt@ucc.asn.au>
date Sat, 10 Jun 2006 16:39:40 +0000
parents eed26cff980b
children 5ff8218bcee9
comparison
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329:8ed0dce45126 330:5488db2e9e4e
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, [email protected], http://math.libtomcrypt.org
16 */
17
18 /* reverse an array, used for radix code */
19 void
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