// Ex7_10A.cpp Making member functions const
#include <iostream>
using std::cout;
using std::endl;

class CBox                             // Class definition at global scope
{
public:
  // Constructor definition
  explicit CBox(double lv = 1.0, double wv = 1.0, double hv = 1.0) :
    m_Length( lv ), m_Width( wv ), m_Height( hv )
  {
    cout << "Constructor called." << endl;
  }

  // Function to calculate the volume of a box
  double Volume() const
  {
    return m_Length*m_Width*m_Height;
  }

  // Function to compare two boxes which returns true (1)
  // if the first is greater than the second, and false (0) otherwise
  bool compare(const CBox& xBox) const
  {
    return this->Volume() > xBox.Volume();
  }

private:
  double m_Length;                     // Length of a box in inches
  double m_Width;                      // Width of a box in inches
  double m_Height;                     // Height of a box in inches

};

int main()
{
  CBox match( 2.2, 1.1, 0.5 );         // Declare match box
  const CBox cigar( 8.0, 5.0, 1.0 );   // Declare cigar box

  if(cigar.compare(match))
    cout << "match is smaller than cigar" << endl;
  else
    cout << "match is equal to or larger than cigar" << endl;

  cout << endl;
  return 0;
}