#include   <iostream>
using namespace std;





void f(int *p);

///////////////////////////////////////////////////////
int main()
{

    int  n = 57;
    int *p = &n;


    std::cout << "Address       &n = " <<         &n  << std::endl;

    f(&n);

}







///////////////////////////////////////////////////////
void f(int *p2)
{

     cout << "&n = " <<  p2 << endl;
     cout << " n = " << *p2 << endl;

     int &r = *p2;

     cout << " r = n = " << r << endl;

     cout << "&r = " <<  &r << endl;
 //   std::cout << "size of n = " << sizeof(int) << std::endl;
 //   std::cout << "        n = " <<          n  << std::endl;
 //   std::cout << "       &n = " <<         &n  << std::endl;
}



















/*

#include   <iostream>
using namespace std;


int  n = 57;
int *p = &n;
///////////////////////////////////////////////////////
int main()
{



    std::cout << "size of n = " << sizeof(int) << std::endl;
    std::cout << "        n = " <<          n  << std::endl;
    std::cout << "       &n = " <<         &n  << std::endl;
}


*/