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authorjan.nijtmans <nijtmans@users.sourceforge.net>2016-11-16 13:04:26 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2016-11-16 13:04:26 (GMT)
commit2adcff3e5ba6e09366ef4208ab81768803ba15bd (patch)
tree963ed4c25de0f3f0b60d2392c5fd0e7441e548e5 /libtommath/bn_mp_exteuclid.c
parentfac003f85aeba679d1cc6bea4eb8a84fc0ebd9f0 (diff)
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import libtommath 1.0
Diffstat (limited to 'libtommath/bn_mp_exteuclid.c')
-rw-r--r--libtommath/bn_mp_exteuclid.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/libtommath/bn_mp_exteuclid.c b/libtommath/bn_mp_exteuclid.c
index c65928d..fbbd92c 100644
--- a/libtommath/bn_mp_exteuclid.c
+++ b/libtommath/bn_mp_exteuclid.c
@@ -1,4 +1,4 @@
-#include <tommath.h>
+#include <tommath_private.h>
#ifdef BN_MP_EXTEUCLID_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
*
@@ -12,10 +12,10 @@
* The library is free for all purposes without any express
* guarantee it works.
*
- * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ * Tom St Denis, tstdenis82@gmail.com, http://libtom.org
*/
-/* Extended euclidean algorithm of (a, b) produces
+/* Extended euclidean algorithm of (a, b) produces
a*u1 + b*u2 = u3
*/
int mp_exteuclid(mp_int *a, mp_int *b, mp_int *U1, mp_int *U2, mp_int *U3)
@@ -61,9 +61,9 @@ int mp_exteuclid(mp_int *a, mp_int *b, mp_int *U1, mp_int *U2, mp_int *U3)
/* make sure U3 >= 0 */
if (u3.sign == MP_NEG) {
- mp_neg(&u1, &u1);
- mp_neg(&u2, &u2);
- mp_neg(&u3, &u3);
+ if ((err = mp_neg(&u1, &u1)) != MP_OKAY) { goto _ERR; }
+ if ((err = mp_neg(&u2, &u2)) != MP_OKAY) { goto _ERR; }
+ if ((err = mp_neg(&u3, &u3)) != MP_OKAY) { goto _ERR; }
}
/* copy result out */
@@ -78,5 +78,5 @@ _ERR: mp_clear_multi(&u1, &u2, &u3, &v1, &v2, &v3, &t1, &t2, &t3, &q, &tmp, NULL
#endif
/* $Source$ */
-/* $Revision: 0.41 $ */
-/* $Date: 2007-04-18 09:58:18 +0000 $ */
+/* $Revision$ */
+/* $Date$ */