c++

class CPU {
public:
void Work();
private:
};



class Intel : public CPU{
  public :
  void WorkIntel();
  private:
};

class AMD : public CPU{
  public:
  void AMDWork();
  private:
}

enum CPUType{
  Intel = 0,
  AMD = 1
}

class CPUFactory{
  public:
  static CPU* Get(const CPUType& type){
    if(type == CPUType::Intel){
      return new Intel();
    }else if (type == CPUType::AMD){
      return new AMD();
    }else{
      return nullptr;
    }
  }
  private:  
}

int main(){
  // Downcast!!!
  Intel *intel_cpu = dynamic_cast<Intel *>(CPUFactory::Get(CPUType::Intel));
  AMD *amd_cpu = dynamic_cast<AMD*>(CPUFactory::Get(CPUType::AMD));
  

  intel_cpu->IntelWork();
  amd_cpu->AmdWork();
}