- h->key_and_value = larger_vector (h->key_and_value, 2 * new_size, Qnil);
- h->next = larger_vector (h->next, new_size, Qnil);
- h->hash = larger_vector (h->hash, new_size, Qnil);
+ h->key_and_value = larger_vector (h->key_and_value,
+ 2 * (new_size - old_size), -1);
+ h->next = larger_vector (h->next, new_size - old_size, -1);
+ h->hash = larger_vector (h->hash, new_size - old_size, -1);