Mercurial > dropbear
diff tomsfastmath/src/bin/fp_reverse.c @ 643:a362b62d38b2 dropbear-tfm
Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
with Makefile.in renamed
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Wed, 23 Nov 2011 18:10:20 +0700 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tomsfastmath/src/bin/fp_reverse.c Wed Nov 23 18:10:20 2011 +0700 @@ -0,0 +1,31 @@ +/* TomsFastMath, a fast ISO C bignum library. + * + * This project is meant to fill in where LibTomMath + * falls short. That is speed ;-) + * + * This project is public domain and free for all purposes. + * + * Tom St Denis, [email protected] + */ +#include <tfm.h> + +/* reverse an array, used for radix code */ +void fp_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; + } +} + +/* $Source$ */ +/* $Revision$ */ +/* $Date$ */