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-rw-r--r--libtommath/bn_mp_gcd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libtommath/bn_mp_gcd.c b/libtommath/bn_mp_gcd.c
index 18f6dc3..f5aa78b 100644
--- a/libtommath/bn_mp_gcd.c
+++ b/libtommath/bn_mp_gcd.c
@@ -16,7 +16,7 @@
*/
/* Greatest Common Divisor using the binary method */
-int mp_gcd(mp_int *a, mp_int *b, mp_int *c)
+int mp_gcd(const mp_int *a, const mp_int *b, mp_int *c)
{
mp_int u, v;
int k, u_lsb, v_lsb, res;