Thread: non-static member functions, called without an object problem...

Code:

#include <iostream>

using namespace std;

static int i;
class x {
 int i;
 public:
  x() { cout << "In HERE" << endl; }
  int geti() { return i; }
};

int main()
{
 cout << "Inside main() = " << ((x *)(&i+1))->geti() << endl;
 *(&i+1) = 17;
 cout << "Inside main() = " << ((x *)(&i+1))->geti() << endl;
 static x aa;
 cout << "Inside f() : " << aa.geti() << endl;
 x bb;
}

I came across this code on the internet. I tried to compile it using MingGW and it compiles and works!!! I'm confused. Why? Would somebody explain this??

TIA.