fix code-checker

Author: Stefanie Mrozinski

PWGEM/PhotonMeson/Core/Pi0EtaToGammaGamma.h

@@ -61,6 +61,7 @@
 #include <Math/Vector4Dfwd.h>
 
 #include <algorithm>
+#include <array>
 #include <cmath>
 #include <cstddef>
 #include <cstdint>

PWGEM/PhotonMeson/Core/Pi0EtaToGammaGammaMC.h

@@ -59,6 +59,7 @@
 #include <TPDGCode.h>
 #include <TString.h>
 
+#include <array>
 #include <cmath>
 #include <cstddef>
 #include <cstdint>

PWGEM/PhotonMeson/Tasks/photonhbt.cxx

@@ -202,7 +202,7 @@ struct Photonhbt {
   // CONFIGURABLES
   /*************************************************/
 
-  Service<o2::ccdb::BasicCCDBManager> ccdb;
+  Service<o2::ccdb::BasicCCDBManager> ccdb{};
   Configurable<std::string> cfgCcdbUrl{"cfgCcdbUrl", "http://alice-ccdb.cern.ch", "CCDB url"};
   Configurable<float> cfgBzOverrideT{"cfgBzOverrideT", -999.f, "Bz in Tesla; used instead of CCDB if > -100"};
   float mBzT{0.f}; // signed, Tesla

PWGEM/PhotonMeson/Utils/PairUtilities.h

@@ -19,6 +19,7 @@
 
 #include <CommonConstants/MathConstants.h>
 #include <Framework/ASoA.h>
+#include <Framework/AnalysisHelpers.h>
 
 #include <cmath>
 
@@ -37,14 +38,14 @@ namespace o2::aod::pwgem::photonmeson::photonpair
 {
 enum PairType {
   kPCMPCM = 0,
-  kPHOSPHOS = 1,
-  kEMCEMC = 2,
-  kPCMPHOS = 3,
-  kPCMEMC = 4,
-  kPCMDalitzEE = 5,
-  kPCMDalitzMuMu = 6,
-  kPHOSEMC = 7,
-  kEEEE = 8, // dielectron-dielectron
+  kPHOSPHOS,
+  kEMCEMC,
+  kPCMPHOS,
+  kPCMEMC,
+  kPCMDalitzEE,
+  kPCMDalitzMuMu,
+  kPHOSEMC,
+  kEEEE, // dielectron-dielectron
   kNpair,
 };