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-rw-r--r--libtommath/bn_mp_cmp_d.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libtommath/bn_mp_cmp_d.c b/libtommath/bn_mp_cmp_d.c
index 3f5ebae..3768f06 100644
--- a/libtommath/bn_mp_cmp_d.c
+++ b/libtommath/bn_mp_cmp_d.c
@@ -16,7 +16,7 @@
*/
/* compare a digit */
-int mp_cmp_d(mp_int * a, mp_digit b)
+int mp_cmp_d(const mp_int * a, mp_digit b)
{
/* compare based on sign */
if (a->sign == MP_NEG) {