struct ccase *
casewindow_get_case (const struct casewindow *cw_, casenumber case_idx)
{
- struct casewindow *cw = (struct casewindow *) cw_;
+ struct casewindow *cw = CONST_CAST (struct casewindow *, cw_);
assert (case_idx >= 0 && case_idx < casewindow_get_case_cnt (cw));
if (casewindow_error (cw))