P8RndmEngine.h

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#ifndef GeneratorInterface_Pythia8Interface_P8RndmEngine_h
#define GeneratorInterface_Pythia8Interface_P8RndmEngine_h

#include "Pythia8/Basics.h"

namespace CLHEP {
  class HepRandomEngine;
}

namespace gen {

  class P8RndmEngine : public Pythia8::RndmEngine {
  public:
    P8RndmEngine() : randomEngine_(nullptr) {}

    // Routine for generating a random number.
    double flat() override;

    void setRandomEngine(CLHEP::HepRandomEngine* v) { randomEngine_ = v; }

  private:
    void throwNullPtr() const;

    CLHEP::HepRandomEngine* randomEngine_;
  };
  typedef std::shared_ptr<P8RndmEngine> P8RndmEnginePtr;
}  // namespace gen
#endif