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itgmania212121/src/libtommath/bn_reverse.c
T
2010-01-26 21:00:30 -06:00

40 lines
960 B
C

#include <tommath.h>
#ifdef BN_REVERSE_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
*
* LibTomMath is a library that provides multiple-precision
* integer arithmetic as well as number theoretic functionality.
*
* The library was designed directly after the MPI library by
* Michael Fromberger but has been written from scratch with
* additional optimizations in place.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
*/
/* reverse an array, used for radix code */
void
bn_reverse (unsigned char *s, int len)
{
int ix, iy;
unsigned char t;
ix = 0;
iy = len - 1;
while (ix < iy) {
t = s[ix];
s[ix] = s[iy];
s[iy] = t;
++ix;
--iy;
}
}
#endif
/* $Source$ */
/* $Revision: 24838 $ */
/* $Date: 2007-01-23 23:16:57 -0600 (Tue, 23 Jan 2007) $ */