-Bool_t AliITSClusterFinderV2SDD::NoiseSuppress(Int_t k, Int_t sid, AliBin* bins, AliITSCalibrationSDD* cal) const {
+Bool_t AliITSClusterFinderV2SDD::NoiseSuppress(Int_t k, Int_t sid, AliBin* bins, const AliITSCalibrationSDD* cal) const {
// applies zero suppression using the measured noise of each anode
// threshold values from ALICE-INT-1999-28 V10
// returns kTRUE if the digit should eb noise suppressed, kFALSE if it should be kept
// applies zero suppression using the measured noise of each anode
// threshold values from ALICE-INT-1999-28 V10
// returns kTRUE if the digit should eb noise suppressed, kFALSE if it should be kept