Class Box

Examples/NoModules/Chapter 13/Ex13_10/Box.h:7–35

#include <format>

class Box
{
public:
  Box() = default;
  Box(double length, double width, double height) 
    : m_length{length}, m_width{width}, m_height{height} {};

  double volume() const 
  {
    return m_length * m_width * m_height;
  }

  int compare(const Box& box) const
  {
    if (volume() < box.volume()) return -1;
    if (volume() == box.volume()) return 0;
    return +1;
  }

  friend std::ostream& operator<<(std::ostream& out, const Box& box)
  {
    return out << std::format("Box({:.1f},{:.1f},{:.1f})", box.m_length, box.m_width, box.m_height);
  }

private:
  double m_length {1.0};
  double m_width {1.0};
  double m_height {1.0};
};

#endif