int i;
bool warn = true;
const struct dictionary *dict = dataset_dict (ds);
- const struct two_sample_test *t2s = (struct two_sample_test *) test;
+ const struct two_sample_test *t2s = UP_CAST (test, const struct two_sample_test, parent);
struct wilcoxon_state *ws = xcalloc (sizeof (*ws), t2s->n_pairs);
const struct variable *weight = dict_get_weight (dict);