Avoid appending empty MC identifiers and names

Jürgen Knödlseder
1 parent 8a3d351e
Showing 1 changed file with 3 additions and 1 deletions
src/ctobssim/ctobssim.cpp
@@ -1617,7 +1617,9 @@ void ctobssim::set_mc_id_names(GCTAObservation* obs,
         } // endfor: looped over all models
  
         // Set correspondance for the event list
-        events->set_mc_id_names(ids, names);
+        if ((ids.size() > 0) && (names.size() > 0)) {
+            events->set_mc_id_names(ids, names);
+        }
  
     } // endif: observation pointer was valid