Перегрузка операторов для класса "Цилиндр"

#include <iostream>
 
class CCylinder
{
private:
    int m_nRadius;
    int m_nheight;
public:
    CCylinder(int a ,int b );
  
    
    int GetRadius();
    int GetHeigh();
    void  SetRadius(int);
    void  SetHeight(int);
    double Area();
    double Volume();
    const double pi = 3.14;
};
 
CCylinder::CCylinder(int a, int b )
{
    m_nRadius = a;
    m_nheight = b;
}
 
 
int CCylinder::GetHeigh()
{
    return m_nheight;
}
int CCylinder::GetRadius()
{
    return m_nRadius;
}
void CCylinder::SetHeight(int b)
{
    m_nheight= b;
}
void CCylinder::SetRadius(int a)
{
    m_nRadius= a;
}
double CCylinder::Area()
{
    return 2*pi*m_nRadius*(m_nRadius+m_nheight)  ;
}
double CCylinder::Volume()
{
    return pi*m_nRadius*m_nRadius*m_nheight ;
}
 
using namespace std;
 
int main() {
    CCylinder rec(9,9);
    cout << "rec2" << endl;
    cout << "Radius = " << rec.GetRadius() << endl;
    cout << "Heigh = " << rec.GetHeigh() << endl;
    cout << "area = " << rec.Area() << endl;
    cout << "Volume = " << rec.Volume() << endl;
    CCylinder rec2(10, 10);
    cout << "rec2" << endl;
    cout << "Radius = " << rec2.GetRadius() << endl;
    cout << "Heigh = " << rec2.GetHeigh() << endl;
    cout << "area = " << rec2.Area() << endl;
    cout << "Volume = " << rec2.Volume() << endl;
}

    CCylinder& operator=(const CCylinder& other) = default;
    CCylinder& operator+=(const CCylinder& other) { return *this; }
    CCylinder& operator-=(const CCylinder& other) { return *this; }
    bool operator<=(const CCylinder& other) const { return (bool)(std::cout << "whatever\n"); }
    bool operator>=(const CCylinder& other) const { !(*this <= other); }