GPIO Pin Operator Overload

#include <iostream>
using namespace std;

// Define enum class Level
enum class Level{
    LOW=0,HIGH
};
// Define class GpioPin with operator= and operator int()
class GpioPin{
    Level pin;
    public:
    GpioPin(Level p) : pin(p){}
    void operator=(const Level&o){
        pin=o;
    }
    operator int()const{
        return static_cast<int>(pin);
    }
};
int main() {
    int init, next;
    cin >> init >> next;

    GpioPin pin(static_cast<Level>(init));

    pin = static_cast<Level>(next);

    cout << pin;

    return 0;
}