few changes in configuration VertexingHF for filtering pp 2010 data

[u/mrichter/AliRoot.git] / STEER / findAliasesForClass.C

diff --git a/STEER/findAliasesForClass.C b/STEER/findAliasesForClass.C
index d39e6a7094f0bd4fc04b5733e01ae86ac2ad8faa..18b4258ca4842068c33ca7049d921019e9e3809e 100644 (file)
--- a/STEER/findAliasesForClass.C
+++ b/STEER/findAliasesForClass.C
@@ -12,6 +12,10 @@ TObjArray* findAliasesForClass(THashList &list, const char* className)
 
     TObjArray* matchingTrAliases = new TObjArray(2);
     TNamed *n = dynamic_cast<TNamed*>(list.FindObject(className));
+    if(!n){
+       Printf("No entry for a trigger-class named \"%s\"",className);
+       return;
+    }
     TString aliasList = n->GetTitle();
     TObjArray* arrAliases = aliasList.Tokenize(',');
     Int_t nAliases = arrAliases->GetEntries();