fix error when running

diff --git a/d0_bignum-tommath.c b/d0_bignum-tommath.c
index d38a260266d1ddc3c80f14dc24c131dc18b267db..71954a28fe387b7faba429227dc6e05dbd367a58 100644 (file)
--- a/d0_bignum-tommath.c
+++ b/d0_bignum-tommath.c
@@ -398,7 +398,7 @@ d0_bignum_t *d0_bignum_mod_pow(d0_bignum_t *r, const d0_bignum_t *a, const d0_bi
 D0_BOOL d0_bignum_mod_inv(d0_bignum_t *r, const d0_bignum_t *a, const d0_bignum_t *m)
 {
        // here, r MUST be set, as otherwise we cannot return error state!
-       return mp_invmod(&a->z, &m->z, &r->z);
+       return mp_invmod(&a->z, &m->z, &r->z) == MP_OKAY;
 }
 
 int d0_bignum_isprime(d0_bignum_t *r, int param)