//declarație
class Complex {
private:
    int re;
    int im;
public:
    Complex();
    int GetRe() const;
    int GetIm() const;
    void SetRe(int re);
    void SetIm(int im);
};


//apelare
Complex c1;
const Complex c2;
c1.GetRe();   //corect
c1.SetRe(5);  //corect
c2.GetRe();   //corect
c2.SetRe(5);  //incorect