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-rw-r--r--libtommath/bn_mp_neg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libtommath/bn_mp_neg.c b/libtommath/bn_mp_neg.c
index b30d044..75f8bbd 100644
--- a/libtommath/bn_mp_neg.c
+++ b/libtommath/bn_mp_neg.c
@@ -16,7 +16,7 @@
*/
/* b = -a */
-int mp_neg(mp_int *a, mp_int *b)
+int mp_neg(const mp_int *a, mp_int *b)
{
int res;
if (a != b) {