Tutorial 7 Q3 [Top-level method]

// http://pastebin.com/u/TheWhiteFang
// Tutorial 7 Q3 [Top-level method]
#include <iostream>
#include <math.h>
using namespace std;

class CCube{
    float m_EdgeLength;
    float m_SurfaceArea;

public:
    CCube(float inEdge = 0.0){

        m_EdgeLength = (float)inEdge;
        m_SurfaceArea = 6 * (inEdge*inEdge);
        // To be completed
    }

    friend CCube operator+ (const CCube &inVal1, const CCube &inVal2);
    friend ostream &operator<<(ostream &output, const CCube &source);

};

CCube operator+ (const CCube &inVal1, const CCube &inVal2)
{
    CCube temp;

    temp.m_SurfaceArea = (5 * pow(inVal1.m_EdgeLength, 2)) + (5 * pow(inVal2.m_EdgeLength, 2));
    temp.m_SurfaceArea += inVal2.m_EdgeLength - inVal1.m_EdgeLength;

    //if (inVal2.m_EdgeLength > inVal1.m_EdgeLength){
    //  temp.m_SurfaceArea += inVal2.m_EdgeLength - inVal1.m_EdgeLength;
    //}

    //else if (inVal1.m_EdgeLength > inVal2.m_EdgeLength){
    //  temp.m_SurfaceArea += inVal1.m_EdgeLength - inVal2.m_EdgeLength;
    //}

    return temp;

}



ostream &operator<<(ostream &output, const CCube &source){ //return ostream by reference //only thing that changes is classname
    output << "Surface Area = "<< source.m_SurfaceArea << " cm2 )" << endl;
    return output;
}

int main()
{
    CCube cubeObj1((float)2.5);
    CCube cubeObj2((float)3.5);
    cout << "Cube 1 (" << cubeObj1 << /*")" <<*/ endl;
    cout << "Cube 2 (" << cubeObj2 << /*")" <<*/ endl;

    CCube cubeObj3 = cubeObj1 + cubeObj2;
    cout << "Cube 1 + Cube 2 = ";
    cout << "(" << cubeObj3 << /*")" <<*/endl;
    return 0;
}