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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. class A
  5. {
  6. public:
  7.     A()
  8.     {
  9.         cout << "1";
  10.     }
  11.     virtual ~A()
  12.     {
  13.         cout << "2";
  14.     }
  15. };
  16.  
  17. class B:public A
  18. {
  19. public:
  20.     B()
  21.     {
  22.         cout << "3";
  23.     }
  24.     ~B()
  25.     {
  26.         cout << "4";
  27.     }
  28. };
  29.  
  30. int main()
  31. {
  32.     A* obj;
  33.     obj = new B;
  34.     delete obj;
  35.     obj = new A;
  36.     delete obj;
  37.     return 0;
  38. }
Success #stdin #stdout 0s 4240KB
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https://ideone.com/54pC05
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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