Added enum for Event and Track selection bins

Mega Linter failed for cppcheck in the previous push commit, no clue for the error coming from where. Just checked with updating in the Hologram filling for hEventSel and hMuTrkSel with float values. 

Locally, the o2_linter.py test is successful, compiled in O2Physics  and executed the code with the output AnalysisResults.root without any issue.

Author: mislam17

PWGHF/HFL/Tasks/taskSingleMuonMult.cxx

@@ -53,14 +53,14 @@ using namespace o2::aod::fwdtrack;
 struct HfTaskSingleMuonMult {
 
   // enum for event selection bins
-  enum EventSelectionBins : int {
+  enum EventSelectionBinsEnum {
     AllEvents = 1,
     Sel8,
     VtxZAfterSel
   };
 
   // enum for muon track selection bins
-  enum MuonTrackSelectionBinsEnum : int {
+  enum MuonTrackSelectionBinsEnum {
     NoCut = 1,
     EtaCut,
     RAbsorbCut,
@@ -156,18 +156,18 @@ struct HfTaskSingleMuonMult {
                MyTracks const& tracks,
                MyMuons const& muons)
   {
-    registry.fill(HIST("hEventSel"), AllEvents);
+    registry.fill(HIST("hEventSel"), 1.);
 
     if (!collision.sel8()) {
       return;
     }
-    registry.fill(HIST("hEventSel"), Sel8);
+    registry.fill(HIST("hEventSel"), 2.);
     registry.fill(HIST("hVtxZBeforeSel"), collision.posZ());
 
     if (std::abs(collision.posZ()) > zVtxMax) {
       return;
     }
-    registry.fill(HIST("hEventSel"), VtxZAfterSel);
+    registry.fill(HIST("hEventSel"), 3.);
     registry.fill(HIST("hVtxZAfterSel"), collision.posZ());
 
     // T0M centrality
@@ -203,7 +203,7 @@ struct HfTaskSingleMuonMult {
       registry.fill(HIST("hMuBeforeMatchMFT"), cent, nCh, pt, eta, theta, rAbsorb, dcaXY, pDca, chi2, muTrackType);
 
       // histograms before the acceptance cuts
-      registry.fill(HIST("hMuTrkSel"), NoCut);
+      registry.fill(HIST("hMuTrkSel"), 1.);
       registry.fill(HIST("hMuBeforeAccCuts"), cent, nCh, pt, eta, theta, rAbsorb, dcaXY, pDca, chi2, muTrackType);
       registry.fill(HIST("h3DCABeforeAccCuts"), muon.fwdDcaX(), muon.fwdDcaY(), muTrackType);
 
@@ -220,14 +220,14 @@ struct HfTaskSingleMuonMult {
       if ((eta >= etaMax) || (eta < etaMin)) {
         continue;
       }
-      registry.fill(HIST("hMuTrkSel"), EtaCut);
+      registry.fill(HIST("hMuTrkSel"), 2.);
       registry.fill(HIST("hMuAfterEtaCuts"), cent, nCh, pt, eta, theta, rAbsorb, dcaXY, pDca, chi2, muTrackType);
 
       // Rabsorb cuts
       if ((rAbsorb < rAbsorbMin) || (rAbsorb >= rAbsorbMax)) {
         continue;
       }
-      registry.fill(HIST("hMuTrkSel"), RAbsorbCut);
+      registry.fill(HIST("hMuTrkSel"), 3.);
       registry.fill(HIST("hMuAfterRAbsorbCuts"), cent, nCh, pt, eta, theta, rAbsorb, dcaXY, pDca, chi2, muTrackType);
 
       if ((rAbsorb < rAbsorbMid) && (pDca >= pDcaMin)) {
@@ -236,14 +236,14 @@ struct HfTaskSingleMuonMult {
       if ((rAbsorb >= rAbsorbMid) && (pDca >= pDcaMax)) {
         continue;
       }
-      registry.fill(HIST("hMuTrkSel"), PDcaCut);
+      registry.fill(HIST("hMuTrkSel"), 4.);
       registry.fill(HIST("hMuAfterPdcaCuts"), cent, nCh, pt, eta, theta, rAbsorb, dcaXY, pDca, chi2, muTrackType);
 
       //  MCH-MFT matching chi2
       if (muon.chi2() >= 1e6) {
         continue;
       }
-      registry.fill(HIST("hMuTrkSel"), Chi2Cut);
+      registry.fill(HIST("hMuTrkSel"), 5.);
 
       // histograms after acceptance cuts
       registry.fill(HIST("hMuAfterAccCuts"), cent, nCh, pt, eta, theta, rAbsorb, dcaXY, pDca, chi2, muTrackType);