#include <iostream>

using namespace std;

// external definitions for extern1.cpp

extern int default_global_vbl;
// extern int static_global_vbl;       -- can't have!
int extern_global_vbl = 3;


void default_fn()
{
  cout << "I am in default_fn" << endl;
  cout << "default_global_vbl= " << default_global_vbl << endl;
//  cout << "static_global_vbl = " << static_global_vbl  << endl;  -- no!
  cout << "extern_global_vbl = " << extern_global_vbl << endl << endl;
}

void extern_fn()
{
  cout << "I am in extern_fn" << endl;
  cout << "default_global_vbl= " << default_global_vbl << endl;
//  cout << "static_global_vbl = " << static_global_vbl  << endl;  -- no!
  cout << "extern_global_vbl = " << extern_global_vbl << endl << endl;
}