while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
DEBUG1("%g" " : \n", next_event_date);
while (tmgr_history_get_next_event_leq(history, next_event_date,
while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
DEBUG1("%g" " : \n", next_event_date);
while (tmgr_history_get_next_event_leq(history, next_event_date,