Behaviour

Translated to C++ from the paper by Bertrand Meyer:

class Process {
    virtual void setup() = 0;
    virtual bool over() const = 0;
    virtual void step() = 0;
    virtual void finalize() = 0;
  public:
    void live() {
      setup();
      while (!over()) { step(); }
      finalize();
    }
    virtual ~Process() = 0;
};

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