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Return null pointer if no tracks were found
authorhristov <hristov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Tue, 27 Feb 2007 15:37:59 +0000 (15:37 +0000)
committerhristov <hristov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Tue, 27 Feb 2007 15:37:59 +0000 (15:37 +0000)
STEER/AliVertexerTracks.cxx patch | blob | blame | history

diff --git a/STEER/AliVertexerTracks.cxx b/STEER/AliVertexerTracks.cxx
index 41ecac10d35465300b6088adbe9094862ad075e5..214dc4f2cb268d59f80983dd56204c0582f45742 100644 (file)
--- a/STEER/AliVertexerTracks.cxx
+++ b/STEER/AliVertexerTracks.cxx
@@ -121,6 +121,8 @@ AliESDVertex* AliVertexerTracks::FindPrimaryVertex(const AliESD *esdEvent)
 
   // read tracks from ESD
   Int_t nTrksTot = (Int_t)esdEvent->GetNumberOfTracks();
+  if (nTrksTot<=0) return fCurrentVertex;
+
   TTree *trkTree = new TTree("TreeT","tracks");
   AliESDtrack *esdTrack = 0;
   trkTree->Branch("tracks","AliESDtrack",&esdTrack);