class Complex {
  friend void ImprimeComplex(FILE *arq, const Complex &cComp);
private:
  float a, b;
public:
// contrutores
   Complex(void);
   Complex(const Complex &cComp);
   Complex(float parteR, float parteI);
// destrutor
   ~Complex(void);
// operador de atribuicao =
   Complex &operator = (const Complex &cComp);
// operador + binario
   Complex operator + (const Complex &cComp);
// operador * binario
   Complex operator * (const Complex &cComp);
};