#ifndef complex_h
#define complex_h

#include <iostream>
using namespace std;

class Complex {
   float r_, i_;
 public:
   Complex(float re=0, float im = 0) { r_=re; i_=im; }
   float re() { return r_; }
   float im() { return i_; }
};

// aritmetic operators
int     operator==(Complex& c1, Complex& c2);
Complex operator+ (Complex& c1, Complex& c2);
Complex operator- (Complex& c1, Complex& c2);
Complex operator* (Complex& c1, Complex& c2);
Complex operator/ (Complex& c1, Complex& c2);

//mixed-mode arithmetic operators
Complex operator+ (Complex& c, float a);
Complex operator+ (float a, Complex& c);


//std::ostream& operator<< (std::ostream& s, Complex& z);
ostream& operator<<(ostream& s, Complex& z);

#endif