-XBT_PUBLIC(double) tmgr_history_next_date(tmgr_history_t history);
-XBT_PUBLIC(tmgr_trace_event_t)
- tmgr_history_get_next_event_leq(tmgr_history_t history, double date,
+XBT_PUBLIC(double) tmgr_history_next_date(tmgr_fes_t history);
+XBT_PUBLIC(tmgr_trace_iterator_t)
+ tmgr_history_get_next_event_leq(tmgr_fes_t history, double date,