// THis is a header file for a complex class

#ifndef CLASS_COMPLEX
#define CLASS_COMPLEX

#include <iostream>

using namespace std;

class Complex
{
 // friend functions
 friend ostream& operator<< (ostream&, const Complex&);

 private:
   double real_;
   double imag_;

 public:
   Complex (double = 0.0, double = 0.0);

   void setReal(double);
   void setImag(double);
   double getReal() const;
   double getImag() const;

   bool operator== (const Complex&);
   bool operator< (const Complex&);
};

inline Complex::Complex(double rl, double im)
: real_(rl), imag_(im)
{}

inline void Complex::setReal(double rl)
{
 real_ = rl;
}

inline void Complex::setImag(double im)
{
 imag_ = im;
}

inline double Complex::getReal() const
{
 return real_;
}

inline double Complex::getImag() const
{
 return imag_;
}

ostream& operator<< (ostream&, const Complex&);
Complex operator+ (const Complex&, const Complex&);

#endif