Change object passed by value to object passed by const reference

abdoulline · May 28, 2013 · 5851f84 · 5851f84
1 parent 8db07b3
commit 5851f84
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Showing 34 changed files with 122 additions and 117 deletions.
diff --git a/SimTracker/TrackHistory/plugins/TrackHistoryAnalyzer.cc b/SimTracker/TrackHistory/plugins/TrackHistoryAnalyzer.cc
@@ -58,8 +58,8 @@ class TrackHistoryAnalyzer : public edm::EDAnalyzer
     TrackClassifier classifier_;
 
     std::string vertexString(
-        TrackingParticleRefVector,
-        TrackingParticleRefVector
+        const TrackingParticleRefVector&,
+        const TrackingParticleRefVector&
     ) const;
 
     std::string vertexString(
@@ -209,8 +209,8 @@ std::string TrackHistoryAnalyzer::particleString(int pdgId) const
 
 
 std::string TrackHistoryAnalyzer::vertexString(
-    TrackingParticleRefVector in,
-    TrackingParticleRefVector out
+    const TrackingParticleRefVector& in,
+    const TrackingParticleRefVector& out
 ) const
 {
     ParticleData const * pid;

diff --git a/SimTracker/TrackHistory/plugins/VertexHistoryAnalyzer.cc b/SimTracker/TrackHistory/plugins/VertexHistoryAnalyzer.cc
@@ -54,8 +54,8 @@ class VertexHistoryAnalyzer : public edm::EDAnalyzer
     std::string particleString(int) const;
 
     std::string vertexString(
-        TrackingParticleRefVector,
-        TrackingParticleRefVector
+        const TrackingParticleRefVector&,
+        const TrackingParticleRefVector&
     ) const;
 
     std::string vertexString(
@@ -202,8 +202,8 @@ std::string VertexHistoryAnalyzer::particleString(int pdgId) const
 
 
 std::string VertexHistoryAnalyzer::vertexString(
-    TrackingParticleRefVector in,
-    TrackingParticleRefVector out
+    const TrackingParticleRefVector& in,
+    const TrackingParticleRefVector& out
 ) const
 {
     ParticleData const * pid;

diff --git a/TopQuarkAnalysis/TopEventSelection/interface/TtHadLRSignalSelCalc.h b/TopQuarkAnalysis/TopEventSelection/interface/TtHadLRSignalSelCalc.h
@@ -1,5 +1,5 @@
 //
-// $Id: TtHadLRSignalSelCalc.h,v 1.1 2007/10/07 15:28:05 mfhansen Exp $
+// $Id: TtHadLRSignalSelCalc.h,v 1.2 2008/02/17 11:18:53 rwolf Exp $
 // Adapted TtHadLRSignalSelCalc.h,v 1.1 2007/06/15 08:49:19 heyninck Exp 
 // for fully hadronic channel
 
@@ -31,7 +31,7 @@ class TtHadLRSignalSelCalc {
  public:
 
   TtHadLRSignalSelCalc();
-  TtHadLRSignalSelCalc(TString,std::vector<int>);
+  TtHadLRSignalSelCalc(const TString&,const std::vector<int>&);
   ~TtHadLRSignalSelCalc();	
   void  operator()(TtHadEvtSolution&);
 

diff --git a/TopQuarkAnalysis/TopEventSelection/interface/TtHadLRSignalSelObservables.h b/TopQuarkAnalysis/TopEventSelection/interface/TtHadLRSignalSelObservables.h
@@ -36,7 +36,7 @@ class TtHadLRSignalSelObservables{
 
   // compare two jets in ET
   struct CompareET {
-    bool operator()( pat::Jet j1, pat::Jet j2 ) const
+    bool operator()( const pat::Jet& j1, const pat::Jet& j2 ) const
     {
       return j1.et() > j2.et();
     }
@@ -46,7 +46,7 @@ class TtHadLRSignalSelObservables{
 
   // compare two jets in bdisc
   struct CompareBdisc {
-    bool operator()( pat::Jet j1, pat::Jet j2 ) const
+    bool operator()( const pat::Jet& j1, const pat::Jet& j2 ) const
     {
       return j1.bDiscriminator("trackCountingJetTags") > j2.bDiscriminator("trackCountingJetTags");
     }

diff --git a/TopQuarkAnalysis/TopEventSelection/interface/TtSemiLRSignalSelCalc.h b/TopQuarkAnalysis/TopEventSelection/interface/TtSemiLRSignalSelCalc.h
@@ -2,7 +2,7 @@
 // Author:  Jan Heyninck
 // Created: Tue Apr  3 17:33:23 PDT 2007
 //
-// $Id: TtSemiLRSignalSelCalc.h,v 1.1 2007/06/15 08:49:19 heyninck Exp $
+// $Id: TtSemiLRSignalSelCalc.h,v 1.2 2008/02/17 11:18:54 rwolf Exp $
 //
 
 #ifndef TtSemiLRSignalSelCalc_h
@@ -13,7 +13,7 @@
   \brief    Class to calculate the jet combination LR value and purity from a root-file with fit functions
 
   \author   Jan Heyninck
-  \version  $Id: TtSemiLRSignalSelCalc.h,v 1.1 2007/06/15 08:49:19 heyninck Exp $
+  \version  $Id: TtSemiLRSignalSelCalc.h,v 1.2 2008/02/17 11:18:54 rwolf Exp $
 */
 
 #include "FWCore/Framework/interface/EventSetup.h"
@@ -34,7 +34,7 @@ class TtSemiLRSignalSelCalc {
  public:
 
   TtSemiLRSignalSelCalc();
-  TtSemiLRSignalSelCalc(TString,std::vector<int>);
+  TtSemiLRSignalSelCalc(const TString&,const std::vector<int>&);
   ~TtSemiLRSignalSelCalc();	
 
   void  operator()(TtSemiEvtSolution&);

diff --git a/TopQuarkAnalysis/TopEventSelection/interface/TtSemiLRSignalSelObservables.h b/TopQuarkAnalysis/TopEventSelection/interface/TtSemiLRSignalSelObservables.h
@@ -41,7 +41,7 @@ class TtSemiLRSignalSelObservables{
 
   // compare two jets in ET
   struct CompareET {
-    bool operator()( pat::Jet j1, pat::Jet j2 ) const
+    bool operator()( const pat::Jet& j1, const pat::Jet& j2 ) const
     {
       return j1.et() > j2.et();
     }
@@ -51,7 +51,7 @@ class TtSemiLRSignalSelObservables{
 
   // compare two jets in bdisc
   struct CompareBdisc {
-    bool operator()( pat::Jet j1, pat::Jet j2 ) const
+    bool operator()( const pat::Jet& j1, const pat::Jet& j2 ) const
     {
       return j1.bDiscriminator("trackCountingJetTags") > j2.bDiscriminator("trackCountingJetTags");
     }

diff --git a/TopQuarkAnalysis/TopEventSelection/interface/TtSemiLepSignalSel.h b/TopQuarkAnalysis/TopEventSelection/interface/TtSemiLepSignalSel.h
@@ -14,7 +14,7 @@ class TtSemiLepSignalSel {
 public:
 
   TtSemiLepSignalSel();
-  TtSemiLepSignalSel(const std::vector<pat::Jet>&, math::XYZTLorentzVector, const edm::View<pat::MET>&);
+  TtSemiLepSignalSel(const std::vector<pat::Jet>&, const math::XYZTLorentzVector&, const edm::View<pat::MET>&);
   ~TtSemiLepSignalSel();
 
   double sumEt() const { return var_sumEt; }
@@ -33,8 +33,8 @@ class TtSemiLepSignalSel {
   double mindRjetlepton() const { return var_mindRjetlepton; }
 
 
-  double DeltaPhi(math::XYZTLorentzVector, math::XYZTLorentzVector);
-  double DeltaR(math::XYZTLorentzVector, math::XYZTLorentzVector);
+  double DeltaPhi(const math::XYZTLorentzVector&, const math::XYZTLorentzVector&);
+  double DeltaR(const math::XYZTLorentzVector&, const math::XYZTLorentzVector&);
 
 private:
 

diff --git a/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVAComputer.cc b/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVAComputer.cc
@@ -136,14 +136,14 @@ TtSemiLepSignalSelMVAComputer::endJob()
 {
 }
 
-double TtSemiLepSignalSelMVAComputer::DeltaPhi(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2)
+double TtSemiLepSignalSelMVAComputer::DeltaPhi(const math::XYZTLorentzVector& v1, const math::XYZTLorentzVector& v2)
 {
   double dPhi = fabs(v1.Phi() - v2.Phi());
   if (dPhi > TMath::Pi()) dPhi =  2*TMath::Pi() - dPhi;
   return dPhi;
 }
 
-double TtSemiLepSignalSelMVAComputer::DeltaR(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2)
+double TtSemiLepSignalSelMVAComputer::DeltaR(const math::XYZTLorentzVector& v1, const math::XYZTLorentzVector& v2)
 {
   double dPhi = DeltaPhi(v1,v2);
   double dR = TMath::Sqrt((v1.Eta()-v2.Eta())*(v1.Eta()-v2.Eta())+dPhi*dPhi);

diff --git a/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVAComputer.h b/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVAComputer.h
@@ -27,8 +27,8 @@ class TtSemiLepSignalSelMVAComputer : public edm::EDProducer {
   virtual void produce(edm::Event& evt, const edm::EventSetup& setup);
   virtual void endJob();
 
-  double DeltaPhi(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2);
-  double DeltaR(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2);
+  double DeltaPhi(const math::XYZTLorentzVector& v1, const math::XYZTLorentzVector& v2);
+  double DeltaR(const math::XYZTLorentzVector& v1, const math::XYZTLorentzVector& v2);
 
   edm::InputTag muons_;
   edm::InputTag jets_;

diff --git a/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVATrainer.cc b/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVATrainer.cc
@@ -169,14 +169,14 @@ void TtSemiLepSignalSelMVATrainer::beginJob(){
   }
 }
 
-double TtSemiLepSignalSelMVATrainer::DeltaPhi(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2)
+double TtSemiLepSignalSelMVATrainer::DeltaPhi(const math::XYZTLorentzVector& v1,const  math::XYZTLorentzVector& v2)
 {
   double dPhi = fabs(v1.Phi() - v2.Phi());
   if (dPhi > TMath::Pi()) dPhi =  2*TMath::Pi() - dPhi;
   return dPhi;
 }
 
-double TtSemiLepSignalSelMVATrainer::DeltaR(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2)
+double TtSemiLepSignalSelMVATrainer::DeltaR(const math::XYZTLorentzVector& v1,const math::XYZTLorentzVector& v2)
 {
   double dPhi = DeltaPhi(v1,v2);
   double dR = TMath::Sqrt((v1.Eta()-v2.Eta())*(v1.Eta()-v2.Eta())+dPhi*dPhi);

diff --git a/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVATrainer.h b/TopQuarkAnalysis/TopEventSelection/plugins/TtSemiLepSignalSelMVATrainer.h
@@ -33,8 +33,8 @@ class TtSemiLepSignalSelMVATrainer : public edm::EDAnalyzer {
   virtual void analyze(const edm::Event& evt, const edm::EventSetup& setup);
   virtual void beginJob();
 
-  double DeltaPhi(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2);
-  double DeltaR(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2);
+  double DeltaPhi(const math::XYZTLorentzVector& v1,const math::XYZTLorentzVector& v2);
+  double DeltaR(const math::XYZTLorentzVector& v1,const math::XYZTLorentzVector& v2);
 
   // pt sorting stuff
   struct JetwithHigherPt {

diff --git a/TopQuarkAnalysis/TopEventSelection/src/TtHadLRSignalSelCalc.cc b/TopQuarkAnalysis/TopEventSelection/src/TtHadLRSignalSelCalc.cc
@@ -1,11 +1,11 @@
-// $Id: TtHadLRSignalSelCalc.cc,v 1.1 2007/10/07 15:29:05 mfhansen Exp $
+// $Id: TtHadLRSignalSelCalc.cc,v 1.2 2008/02/17 11:18:10 rwolf Exp $
 // copied TtSemiLRSignalSelCalc.cc,v 1.2 2007/06/18 14:12:18 heyninck Exp 
 // for fully hadronic channel
 
 #include "TopQuarkAnalysis/TopEventSelection/interface/TtHadLRSignalSelCalc.h"
 
 // constructor with path; default should not be used
-TtHadLRSignalSelCalc::TtHadLRSignalSelCalc(TString fitInputPath, std::vector<int> observables) 
+TtHadLRSignalSelCalc::TtHadLRSignalSelCalc(const TString& fitInputPath, const std::vector<int>& observables) 
 {
   std::cout << "=== Constructing a TtHadLRSignalSelCalc... " << std::endl; 
   myLR = new LRHelpFunctions();

diff --git a/TopQuarkAnalysis/TopEventSelection/src/TtSemiLRSignalSelCalc.cc b/TopQuarkAnalysis/TopEventSelection/src/TtSemiLRSignalSelCalc.cc
@@ -2,12 +2,12 @@
 // Author:  Jan Heyninck
 // Created: Tue Apr  3 17:33:23 PDT 2007
 //
-// $Id: TtSemiLRSignalSelCalc.cc,v 1.2 2007/06/18 14:12:18 heyninck Exp $
+// $Id: TtSemiLRSignalSelCalc.cc,v 1.3 2008/02/17 11:18:10 rwolf Exp $
 //
 #include "TopQuarkAnalysis/TopEventSelection/interface/TtSemiLRSignalSelCalc.h"
 
 // constructor with path; default should not be used
-TtSemiLRSignalSelCalc::TtSemiLRSignalSelCalc(TString fitInputPath, std::vector<int> observables) 
+TtSemiLRSignalSelCalc::TtSemiLRSignalSelCalc(const TString& fitInputPath, const std::vector<int>& observables) 
 {
   std::cout << "=== Constructing a TtSemiLRSignalSelCalc... " << std::endl; 
   myLR = new LRHelpFunctions();

diff --git a/TopQuarkAnalysis/TopEventSelection/src/TtSemiLepSignalSel.cc b/TopQuarkAnalysis/TopEventSelection/src/TtSemiLepSignalSel.cc
@@ -3,7 +3,7 @@
 
 TtSemiLepSignalSel::TtSemiLepSignalSel(){}
 
-TtSemiLepSignalSel::TtSemiLepSignalSel(const std::vector<pat::Jet>& topJets, math::XYZTLorentzVector lepton, 
+TtSemiLepSignalSel::TtSemiLepSignalSel(const std::vector<pat::Jet>& topJets, const math::XYZTLorentzVector& lepton, 
                                  const edm::View<pat::MET>& MET)
 { //function
 
@@ -73,14 +73,14 @@ TtSemiLepSignalSel::TtSemiLepSignalSel(const std::vector<pat::Jet>& topJets, mat
 
 }
 
-double TtSemiLepSignalSel::DeltaPhi(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2)
+double TtSemiLepSignalSel::DeltaPhi(const math::XYZTLorentzVector& v1, const math::XYZTLorentzVector& v2)
 {
   double dPhi = fabs(v1.Phi() - v2.Phi());
   if (dPhi > TMath::Pi()) dPhi =  2*TMath::Pi() - dPhi;
   return dPhi;
 }
 
-double TtSemiLepSignalSel::DeltaR(math::XYZTLorentzVector v1, math::XYZTLorentzVector v2)
+double TtSemiLepSignalSel::DeltaR(const math::XYZTLorentzVector& v1, const math::XYZTLorentzVector& v2)
 {
   double dPhi = DeltaPhi(v1,v2);
   double dR = TMath::Sqrt((v1.Eta()-v2.Eta())*(v1.Eta()-v2.Eta())+dPhi*dPhi);

diff --git a/TopQuarkAnalysis/TopHitFit/interface/Fourvec_Event.h b/TopQuarkAnalysis/TopHitFit/interface/Fourvec_Event.h
@@ -1,5 +1,5 @@
 //
-// $Id: Fourvec_Event.h,v 1.4 2009/11/18 12:38:02 haryo Exp $
+// $Id: Fourvec_Event.h,v 1.1 2011/05/26 09:46:53 mseidel Exp $
 //
 // File: hitfit/Fourvec_Event.h
 // Purpose: Represent an event for kinematic fitting as a collection
@@ -162,7 +162,7 @@ struct FE_Obj
 
      @param the_muon_p Muon/inverse momentum flag.
   */
-  FE_Obj (Fourvec the_p,
+  FE_Obj (const Fourvec& the_p,
           double the_mass,
           int the_label,
           double the_p_error,

diff --git a/TopQuarkAnalysis/TopHitFit/interface/Top_Decaykin.h b/TopQuarkAnalysis/TopHitFit/interface/Top_Decaykin.h
@@ -1,5 +1,5 @@
 //
-// $Id: Top_Decaykin.h,v 1.7 2010/07/19 13:57:51 haryo Exp $
+// $Id: Top_Decaykin.h,v 1.1 2011/05/26 09:46:53 mseidel Exp $
 //
 // File: hitfit/Top_Decaykin.h
 // Purpose: Calculate some kinematic quantities for ttbar events.
@@ -239,9 +239,9 @@ class Top_Decaykin
 
      @param top The four-momentum of top.
    */
-  static double cos_theta_star(const Fourvec fermion,
-                               const Fourvec W,
-                               const Fourvec top);
+  static double cos_theta_star(const Fourvec& fermion,
+                               const Fourvec& W,
+                               const Fourvec& top);
 
   // Solve cos theta star in lepton side of lepton+jets event
   /**

diff --git a/TopQuarkAnalysis/TopHitFit/src/Fourvec_Event.cc b/TopQuarkAnalysis/TopHitFit/src/Fourvec_Event.cc
@@ -1,5 +1,5 @@
 //
-// $Id: Fourvec_Event.cc,v 1.6 2011/04/26 13:35:49 haryo Exp $
+// $Id: Fourvec_Event.cc,v 1.1 2011/05/26 09:47:00 mseidel Exp $
 //
 // File: src/Fourvec_Event.cc
 // Purpose: Represent an event for kinematic fitting as a collection
@@ -46,7 +46,7 @@ using std::ostream;
 namespace hitfit {
 
 
-FE_Obj::FE_Obj (Fourvec the_p,
+FE_Obj::FE_Obj (const Fourvec& the_p,
                 double the_mass,
                 int the_label,
                 double the_p_error,

diff --git a/TopQuarkAnalysis/TopHitFit/src/Top_Decaykin.cc b/TopQuarkAnalysis/TopHitFit/src/Top_Decaykin.cc
@@ -1,5 +1,5 @@
 //
-// $Id: Top_Decaykin.cc,v 1.10 2010/08/05 02:31:24 haryo Exp $
+// $Id: Top_Decaykin.cc,v 1.1 2011/05/26 09:47:00 mseidel Exp $
 //
 // File: src/Top_Decaykin.cc
 // Purpose: Calculate some kinematic quantities for ttbar events.
@@ -433,9 +433,9 @@ ostream& Top_Decaykin::dump_ev (std::ostream& s, const Lepjets_Event& ev)
 }
 
 
-double Top_Decaykin::cos_theta_star(const Fourvec fermion,
-                                    const Fourvec W,
-                                    const Fourvec top)
+double Top_Decaykin::cos_theta_star(const Fourvec& fermion,
+                                    const Fourvec& W,
+                                    const Fourvec& top)
 //
 // Purpose: Calculate cos theta star in top decay
 //

diff --git a/TopQuarkAnalysis/TopJetCombination/interface/TtHadLRJetCombCalc.h b/TopQuarkAnalysis/TopJetCombination/interface/TtHadLRJetCombCalc.h
@@ -1,6 +1,6 @@
 #ifndef TtHadLRJetCombCalc_h
 #define TtHadLRJetCombCalc_h
-// $Id: TtHadLRJetCombCalc.h,v 1.1 2007/10/07 15:33:27 mfhansen Exp $
+// $Id: TtHadLRJetCombCalc.h,v 1.2 2008/02/17 11:27:11 rwolf Exp $
 // copied TtSemiLRJetCombCalc.h,v 1.3 2007/06/15 08:53:52 by heyninck
 
 #include "FWCore/Framework/interface/EventSetup.h"
@@ -21,7 +21,7 @@ class TtHadLRJetCombCalc {
  public:
 
   TtHadLRJetCombCalc();
-  TtHadLRJetCombCalc(TString,std::vector<int>);
+  TtHadLRJetCombCalc(const TString&,const std::vector<int>&);
   ~TtHadLRJetCombCalc();	
 
   void  operator()(TtHadEvtSolution&);

diff --git a/TopQuarkAnalysis/TopJetCombination/interface/TtSemiLRJetCombCalc.h b/TopQuarkAnalysis/TopJetCombination/interface/TtSemiLRJetCombCalc.h
@@ -2,7 +2,7 @@
 // Author:  Jan Heyninck
 // Created: Tue Apr  3 17:33:23 PDT 2007
 //
-// $Id: TtSemiLRJetCombCalc.h,v 1.3 2007/06/15 08:53:52 heyninck Exp $
+// $Id: TtSemiLRJetCombCalc.h,v 1.4 2008/02/17 11:27:11 rwolf Exp $
 //
 
 #ifndef TtSemiLRJetCombCalc_h
@@ -13,7 +13,7 @@
   \brief    Class to calculate the jet combination LR value and purity from a root-file with fit functions
 
   \author   Jan Heyninck
-  \version  $Id: TtSemiLRJetCombCalc.h,v 1.3 2007/06/15 08:53:52 heyninck Exp $
+  \version  $Id: TtSemiLRJetCombCalc.h,v 1.4 2008/02/17 11:27:11 rwolf Exp $
 */
 
 #include "FWCore/Framework/interface/EventSetup.h"
@@ -34,7 +34,7 @@ class TtSemiLRJetCombCalc {
  public:
 
   TtSemiLRJetCombCalc();
-  TtSemiLRJetCombCalc(TString,std::vector<int>);
+  TtSemiLRJetCombCalc(const TString&,const std::vector<int>&);
   ~TtSemiLRJetCombCalc();	
 
   void  operator()(TtSemiEvtSolution&);

diff --git a/TopQuarkAnalysis/TopJetCombination/src/TtHadLRJetCombCalc.cc b/TopQuarkAnalysis/TopJetCombination/src/TtHadLRJetCombCalc.cc
@@ -1,10 +1,10 @@
-// $Id: TtHadLRJetCombCalc.cc,v 1.1 2007/10/07 15:34:16 mfhansen Exp $
+// $Id: TtHadLRJetCombCalc.cc,v 1.2 2008/02/17 11:27:55 rwolf Exp $
 // copied TtSemiLRJetCombCalc.cc,v 1.4 2007/06/18 14:08:16 by heyninck 
 //
 #include "TopQuarkAnalysis/TopJetCombination/interface/TtHadLRJetCombCalc.h"
 
 // constructor with path; default should not be used
-TtHadLRJetCombCalc::TtHadLRJetCombCalc(TString fitInputPath, std::vector<int> observables) 
+TtHadLRJetCombCalc::TtHadLRJetCombCalc(const TString& fitInputPath, const std::vector<int>& observables) 
 {
   std::cout << "=== Constructing a TtHadLRJetCombCalc... " << std::endl; 
   myLR = new LRHelpFunctions();

diff --git a/TopQuarkAnalysis/TopJetCombination/src/TtSemiLRJetCombCalc.cc b/TopQuarkAnalysis/TopJetCombination/src/TtSemiLRJetCombCalc.cc
@@ -2,12 +2,12 @@
 // Author:  Jan Heyninck
 // Created: Tue Apr  3 17:33:23 PDT 2007
 //
-// $Id: TtSemiLRJetCombCalc.cc,v 1.3 2007/06/15 08:53:54 heyninck Exp $
+// $Id: TtSemiLRJetCombCalc.cc,v 1.4 2007/06/18 14:08:16 heyninck Exp $
 //
 #include "TopQuarkAnalysis/TopJetCombination/interface/TtSemiLRJetCombCalc.h"
 
 // constructor with path; default should not be used
-TtSemiLRJetCombCalc::TtSemiLRJetCombCalc(TString fitInputPath, std::vector<int> observables) {
+TtSemiLRJetCombCalc::TtSemiLRJetCombCalc(const TString& fitInputPath, const std::vector<int>& observables) {
   std::cout << "=== Constructing a TtSemiLRJetCombCalc... " << std::endl; 
   myLR = new LRHelpFunctions();
   addPurity = false;