Remove ROOT data types from CbmStsDigi

Also remove the dependency to RtypesCore.h.
This is the first step to an additional ROOT free version of the CbmStsDigi
requested for the new algorithm code.
The change of the data types has no influence on the streamer. It is still
possible to read previous versions from file even without increasing the
version number.

core/data/CbmDefs.h

@@ -12,7 +12,6 @@
 #ifndef CBMDEFS_H
 #define CBMDEFS_H 1
 
-#include <RtypesCore.h>  // for Double_t
 #include <type_traits>   // for underlying_type
 
 #include <iostream>  // for ostream
@@ -145,8 +144,8 @@ enum class ECbmTreeAccess
 
 
 /** Global functions for particle masses **/
-inline Double_t CbmProtonMass() { return 0.938272046; }
-inline Double_t CbmNeutronMass() { return 0.939565379; }
-inline Double_t CbmElectronMass() { return 0.000510998928; }
+inline double CbmProtonMass() { return 0.938272046; }
+inline double CbmNeutronMass() { return 0.939565379; }
+inline double CbmElectronMass() { return 0.000510998928; }
 
 #endif

core/data/sts/CbmStsDigi.h

@@ -15,7 +15,6 @@
 #include "CbmDefs.h"  // for ECbmModuleId::kSts
 
 #include <Rtypes.h>      // for ClassDef
-#include <RtypesCore.h>  // for Int_t, Double_t, UShort_t, Long64_t, ULong64_t
 
 #include <boost/serialization/access.hpp>
 #include <boost/serialization/base_object.hpp>
@@ -44,7 +43,7 @@ public:
    ** @param  time     Measurement time [ns]
    ** @param  charge   Charge [ADC units]
    **/
-  CbmStsDigi(Int_t address, Int_t channel, ULong64_t time, UShort_t charge)
+  CbmStsDigi(int32_t address, int32_t channel, uint64_t time, uint16_t charge)
     : fTime(time)
     , fAddress(address)
     , fChannel(channel)
@@ -60,7 +59,7 @@ public:
   /** Unique detector element address  (see CbmStsAddress)
    ** @value Unique address of readout channel
    **/
-  Int_t GetAddress() const { return fAddress; }
+  int32_t GetAddress() const { return fAddress; }
 
 
   /** @brief Get the desired name of the branch for this obj in the cbm output tree  (static)
@@ -72,7 +71,7 @@ public:
   /** @brief Channel number in module
    ** @value Channel number
    **/
-  UShort_t GetChannel() const { return fChannel; }
+  uint16_t GetChannel() const { return fChannel; }
 
 
   /** @brief Class name (static)
@@ -84,7 +83,7 @@ public:
   /** Charge
    ** @value Charge [ADC units]
    **/
-  Double_t GetCharge() const { return Double_t(fCharge); }
+  double GetCharge() const { return double(fCharge); }
 
 
   /** System ID (static)
@@ -96,7 +95,7 @@ public:
   /** Time of measurement
    ** @value Time [ns]
    **/
-  Double_t GetTime() const { return Double_t(fTime); }
+  double GetTime() const { return double(fTime); }
 
 
   template<class Archive>
@@ -112,7 +111,7 @@ public:
   /** Update Time of measurement
    ** @param New Time [ns]
    **/
-  void SetTime(Double_t dNewTime)
+  void SetTime(double dNewTime)
   {
     // Future versions of StsDigi won't be able to store negative timestamps.
     assert(dNewTime >= 0);
@@ -127,10 +126,10 @@ public:
 private:
   friend class boost::serialization::access;
 
-  Long64_t fTime    = 0.;  ///< Time [ns]
-  Int_t fAddress    = 0;   ///< Unique element address
-  UShort_t fChannel = 0;   ///< Channel number
-  UShort_t fCharge  = 0;   ///< Charge [ADC units]
+  int64_t fTime    = 0.;  ///< Time [ns]
+  int32_t fAddress    = 0;   ///< Unique element address
+  uint16_t fChannel = 0;   ///< Channel number
+  uint16_t fCharge  = 0;   ///< Charge [ADC units]
 
 
   ClassDefNV(CbmStsDigi, 7);