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-rw-r--r--libtommath/bn_mp_mul_2d.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libtommath/bn_mp_mul_2d.c b/libtommath/bn_mp_mul_2d.c
index cabff13..4ac2e4e 100644
--- a/libtommath/bn_mp_mul_2d.c
+++ b/libtommath/bn_mp_mul_2d.c
@@ -16,7 +16,7 @@
*/
/* shift left by a certain bit count */
-int mp_mul_2d (mp_int * a, int b, mp_int * c)
+int mp_mul_2d (const mp_int * a, int b, mp_int * c)
{
mp_digit d;
int res;