• Source 
    1. #include <iostream>
    2. using namespace std;
    3.  
    4. const int* GetBadVar(){
    5. 	static bool b = false;
    6. 	const int a = (b ? 1 : 2);
    7. 	b = true;
    8. 	return &a;
    9. }
    10.  
    11. int main() 
    12. {
    13. 	auto p1 = GetBadVar();
    14. 	cout << *p1;
    15. 	auto p2 = GetBadVar();
    16. 	cout << *p1;
    17.  
    18. 	return 0;
    19. }