Mercurial > dropbear
diff tomsfastmath/src/addsub/fp_submod.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/addsub/fp_submod.c Wed Nov 23 18:10:20 2011 +0700 @@ -0,0 +1,24 @@ +/* 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> + +/* d = a - b (mod c) */ +int fp_submod(fp_int *a, fp_int *b, fp_int *c, fp_int *d) +{ + fp_int tmp; + fp_zero(&tmp); + fp_sub(a, b, &tmp); + return fp_mod(&tmp, c, d); +} + + +/* $Source$ */ +/* $Revision$ */ +/* $Date$ */