Added protection before using AliVertexerTracks::TrackletVertexFinder

sevdokim · Jun 5, 2015 · 9ce3cd2 · 9ce3cd2
1 parent 1e183d9
commit 9ce3cd2
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/ITS/ITSbase/AliITSVertexer3D.cxx b/ITS/ITSbase/AliITSVertexer3D.cxx
@@ -523,6 +523,7 @@ void AliITSVertexer3D::FindVertex3DIterativeMM(){
       }
       //	  cout<<endl;
       delete []labels;
+
       fVertArray[kk]=AliVertexerTracks::TrackletVertexFinder(tclo,size);
       delete [] tclo;
       //	  fVertArray[kk].PrintStatus();
@@ -994,6 +995,7 @@ Int_t  AliITSVertexer3D::Prepare3DVertex(Int_t optCuts){
   if(fLines.GetEntriesFast()>1){
     retcode=0;
     //  find a first candidate for the primary vertex
+
     fVert3D=AliVertexerTracks::TrackletVertexFinder(&fLines,0); 
     // make a further selection on tracklets based on this first candidate
     fVert3D.GetXYZ(peak);
@@ -1115,9 +1117,10 @@ Int_t  AliITSVertexer3D::Prepare3DVertexPbPb(){
 
   AliDebug(1,Form("Number of tracklets (after 3rd compression) %d",fLines.GetEntriesFast()));
 
-  fVert3D=AliVertexerTracks::TrackletVertexFinder(&fLines,0); 
-  fVert3D.GetXYZ(f3DPeak);
-
+  if(fLines.GetEntriesFast()>1){
+    fVert3D=AliVertexerTracks::TrackletVertexFinder(&fLines,0); 
+    fVert3D.GetXYZ(f3DPeak);
+  }
   return 0;  
 }