twofile1.cpp
#include <iostream>
int tom = 3;
int dick = 30;
static int harry = 300;
void remote_access();
int main()
{
using namespace std;
cout << "main() reports the following addresses:\n";
cout << &tom << " = &tom, " << &dick << " = &dick, ";
cout << &harry << " = &harry\n";
remote_access();
}
twofile2.cpp
#include <iostream>
extern int tom;
static int dick = 10;
int harry = 200;
void remote_access()
{
using namespace std;
cout << "remote_access() reports the following addresses:\n";
cout << &tom << " = &tom, " << &dick << " = &dick, ";
cout << &harry << " = &harry\n";
}