QObject *qlist_peek(QList *qlist);
int qlist_empty(const QList *qlist);
size_t qlist_size(const QList *qlist);
-QList *qobject_to_qlist(const QObject *obj);
bool qlist_is_equal(const QObject *x, const QObject *y);
void qlist_destroy_obj(QObject *obj);