/* A class used to model Complex Numbers
 * Anthony Larrain
 * Spring 2006, csc309
 */
 
#include <iostream>
#include <string>
#include <sstream>

using namespace std;

class Complex1 
{
    private:
        double real;
        double imag;
    
    public:
        Complex1() :
            real(0.0), imag(0.0) {}
        Complex1(double r) :
            real(r), imag(0.0) {}
        Complex1(double r, double i) :
            real(r), imag(i) {}
        
        double getReal() const;
        double getImag() const;
        
        Complex1& setReal(double r);
        Complex1& setImag(double i);
        
        Complex1 plus(const Complex1 & operand2) const;        
        
        string toString() const;
        bool equals(const Complex1 & that) const;
};
        
int main(int argc, char *argv[])
{
    Complex1 c1(2.3,3.2), c2(2), c3;
    
    cout << c1.getReal() << endl;
    cout << c2.getReal() << endl;
    cout << c3.getReal() << endl;        
   
    c3.setReal(2.5).setImag(4.6);
    cout << c3.toString() << endl;
    
    c3 = c1.plus(c2);
    cout << c3.toString() << endl;
    
    c1.setReal(2).setImag(3);
    c2.setReal(2).setImag(3);
    cout << c1.equals(c2) << endl;
    cout << c2.equals(c2) << endl;
    cout << c1.equals(c3) << endl;
    
    
    system("PAUSE");
    return EXIT_SUCCESS;
}

double Complex1::getReal() const {
    return real;
}
double Complex1::getImag() const {
    return imag;
}
Complex1 & Complex1::setReal(double r){
    real = r;
    return *this;
}
Complex1 & Complex1::setImag(double i){
    imag = i;
    return *this;
}
Complex1 Complex1::plus(const Complex1 & operand2) const{    
    return Complex1(getReal() + operand2.getReal(),
                    getImag() + operand2.getImag());
}
string Complex1::toString() const {
    ostringstream str;
    str << real << " + " << imag << "i";
    return str.str();
}

bool Complex1::equals(const Complex1 & that) const {
    if(this == &that){        
        return true;
    }
    return getReal() == that.getReal() &&
           getImag() == that.getImag();
}