message: Use NULL to make CINT happy
diff: @@ -70,7 +70,7 @@ AliAnalysisTaskSE *AddTaskSigma0FemtoNanoAOD(bool isMC = false,
  "V0ReaderV1_%s_%s", cutnumberEvent.Data(), cutnumberPhoton.Data());
  AliConvEventCuts *fEventCuts = NULL;
  - AliV0ReaderV1 *fV0ReaderV1 = nullptr;
  + AliV0ReaderV1 *fV0ReaderV1 = NULL;
  if (!(AliV0ReaderV1 *)mgr->GetTask(V0ReaderName.Data())) {
  fV0ReaderV1 = new AliV0ReaderV1(V0ReaderName.Data());
  if (periodNameV0Reader.CompareTo("") != 0)
  