ElementXsecCache.h

#ifndef G4DarkBREM_ELEMENTXSECCACHE_H
#define G4DarkBREM_ELEMENTXSECCACHE_H
 
#include <memory>
 
#include "G4DarkBreM/PrototypeModel.h"
 
namespace g4db {
 
class ElementXsecCache {
 public:
  ElementXsecCache() = default;
 
  ElementXsecCache(std::shared_ptr<PrototypeModel> model) : model_{model} {}
 
  G4double get(G4double energy, G4double A, G4double Z);
 
  void stream(std::ostream& o) const;
 
  friend std::ostream& operator<<(std::ostream& o, const ElementXsecCache c) {
    c.stream(o);
    return o;
  }
 
 private:
  typedef unsigned long int key_t;
 
  static const key_t MAX_A{1000};
 
  static const key_t MAX_E{1500000};
 
  key_t computeKey(G4double energy, G4double A, G4double Z) const;
 
 private:
  std::map<key_t, G4double> the_cache_;
 
  std::shared_ptr<PrototypeModel> model_;
 
};  // ElementXsecCache
 
}  // namespace g4db
 
#endif