ALIROOT-5420 Additional header file

[u/mrichter/AliRoot.git] / MUON / AliMUONTrackerDataCompareDialog.cxx

diff --git a/MUON/AliMUONTrackerDataCompareDialog.cxx b/MUON/AliMUONTrackerDataCompareDialog.cxx
index e12d431339e16d84f7c7af21afb7eb8f0038239c..4f342866cf454ab9d25ea04d484d5da975da846f 100644 (file)
--- a/MUON/AliMUONTrackerDataCompareDialog.cxx
+++ b/MUON/AliMUONTrackerDataCompareDialog.cxx
@@ -245,13 +245,16 @@ AliMUONTrackerDataCompareDialog::CompareData(const char* d1name,
     suffix = "ARD";
   }
   
-  TString basename = fBasename->GetText(); 
-  
-  AliMUONVTrackerData* d = CompareData(*d1,*d2,Form("%s:%s",basename.Data(),suffix.Data()),difffunction);
-  
-  AliMUONVTrackerDataMaker* dw = new AliMUONTrackerDataWrapper(d);
+  if ( difffunction ) 
+  {
+    TString basename = fBasename->GetText(); 
   
-  AliMUONPainterDataRegistry::Instance()->Register(dw);
+    AliMUONVTrackerData* d = CompareData(*d1,*d2,Form("%s:%s",basename.Data(),suffix.Data()),difffunction);
+    
+    AliMUONVTrackerDataMaker* dw = new AliMUONTrackerDataWrapper(d);
+    
+    AliMUONPainterDataRegistry::Instance()->Register(dw);
+  }
 }
 
 //______________________________________________________________________________