Tutorial 7 Q2 [Member Function method]

// http://pastebin.com/u/TheWhiteFang
// Tutorial 7 Q2 [Member Function method]
#include <iostream>

using namespace std;

class ComplexNum{
    float m_Real;
    float m_Img;
public:
    ComplexNum(float inReal = 0.0, float inImg = 0.0){// To be completed

        m_Real = inReal;
        m_Img = inImg;
    }

    ComplexNum operator* (const ComplexNum &); //member function overload
    friend ostream &operator<<(ostream &output, const ComplexNum &source);
};

ComplexNum ComplexNum ::operator*(const ComplexNum &p) {
    return ComplexNum(((m_Real * p.m_Real) - (m_Img*p.m_Img)), ((m_Real * p.m_Img)+(m_Img * p.m_Real)));
}

//top level function
//ComplexNum operator* (const ComplexNum &inVal1, const ComplexNum &inVal2)
//{
//  ComplexNum temp;
//  temp.m_Real = (inVal1.m_Real * inVal2.m_Real) - (inVal1.m_Img * inVal2.m_Img);
//  temp.m_Img = (inVal1.m_Real * inVal2.m_Img) + (inVal1.m_Img * inVal2.m_Real);
//
//
//  return temp;
//
//}

//top level global to overload stream operator
ostream &operator<<(ostream &output, const ComplexNum &source){ //return ostream by reference //only thing that changes is classname
    output << source.m_Real << " + " << source.m_Img << "i " << endl;
    return output;
}


int main(){
    ComplexNum obj1(10.5, 20.8);
    ComplexNum obj2(31.8, 23.6);
    cout << "Complex Num 1: " << obj1 << endl;
    cout << "Complex Num 2: " << obj2 << endl;

    ComplexNum obj3;
    obj3 = obj1 * obj2;
    cout << endl << "Complex Num 1 × Complex Num 2 = ";
    cout << obj3 << endl;
    return 0;
}