#include<iostream>
using namespace std;
 
class Sample
{
    public:
        int* p;
        Sample(int a = 1){
            cout << "Default constructor" << endl;
            p = new int(a); //request new memory
        }


        Sample(Sample& input) //copy constructor
        {
            p = new int(*input.p);
            cout << "Copy " << p << " <== " << input.p << endl;
        }

        Sample & operator = (Sample & input) //assignment constructor
        {
            cout << "Assign " << p << " <== " << input.p << endl;
            *p = *(input.p);
            return *this;
        }
    
        friend Sample operator ++ (Sample& input, int);
        
        ~Sample()
        {
            cout << "~~~ Destructor called ~~~" << endl;
            delete p;
        }
};

Sample operator ++ (Sample& input, int)
{
    Sample temp = input; 
    *(input.p) ++;
    return temp;
}

int main()
{
    
    Sample ex1(10); 
    Sample ex2;
    ex2 = ex1++;
    
    cout << "value ex1 " << *(ex1.p) << endl;
    cout << "value ex2 " << *(ex2.p) << endl;
    
}