How to see the actual size of a PTR?

[novellof]

How can I see the actual byte size of the pointer as output in the command prompt?

#include <iostream>

using namespace std;


int main ()
{
    int x = 5;
    int* ptrX = &x;
    
    cout << ptrX << endl; // How can I print out, what is being 
                               //pointed at...see how much mem it takes up
    
    
    
    return 0;
}

///GOAL OUTPUT:

ptrX takes up 4 bytes

[naraku9333]

If you want the number of bytes used by ptrX use sizeof(ptrX).
If you want the number of bytes used by what it points to use sizeof(*ptrX).

[novellof]

Awesome thanks!