bool casewindow_destroy (struct casewindow *);
void casewindow_push_head (struct casewindow *, struct ccase *);
-void casewindow_pop_tail (struct casewindow *, casenumber cnt);
+void casewindow_pop_tail (struct casewindow *, casenumber n);
struct ccase *casewindow_get_case (const struct casewindow *,
casenumber case_idx);
const struct caseproto *casewindow_get_proto (const struct casewindow *);