The overloaded 'less-than' operators with double value : overload logic operator « Operator Overloading « C++ Tutorial

1. C++ Tutorial
2. Operator Overloading
3. overload logic operator

#include <iostream>
#include <cstdlib>               // For random number generator
#include <ctime>                 // For time function
using std::cout;
using std::endl;

class Box {
  public:
    Box(double aLength, double aWidth, double aHeight):length(aLength), width(a
Width), height(aHeight) {}

    double volume() const {
      return length*width*height;
    }

    double getLength()  const { return length; }
    double getWidth() const { return width; }
    double getHeight()  const { return height; }

    inline bool operator<(const Box& aBox) const {
      return volume() < aBox.volume();
    }

    inline bool operator<(const double aValue) const {
      return volume() < aValue;
    }


  private:
    double length;
    double width;
    double height;
};


int main() {


  Box firstBox(17.0, 11.0, 5.0);

  if(firstBox < 100000){
    cout << "less than";
  }else{
    cout << "not less than";
  }

  return 0;
}

less than