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  1. #include<iostream>
  2. using namespace std;
  3. class A
  4. {
  5. public:
  6. 	virtual void f1() { cout << "A::F1\n"; }
  7. 	void f2() { cout << "A::F2\n"; }
  8. 	void f3() { cout << "A::F3\n"; }
  9.  
  10.  
  11. };
  12.  
  13. class B :public A
  14. {
  15. public:
  16. 	 void f1() { cout << "B::F1\n"; }
  17. 	 virtual void f2() { cout << "B::F2\n"; }
  18. 	 void f3() { cout << "B::F3\n"; }
  19. };
  20. class C :public B
  21. {
  22. public:
  23. 	void f1() { cout << "C::F1\n"; }
  24. 	void f2() { cout << "C::F2\n"; }
  25. 	virtual void f3() { cout << "C::F3\n"; }
  26.  
  27. };
  28.  
  29. class D :public C
  30. {
  31. public:
  32. 	void f1() { cout << "D::F1\n"; }
  33. 	void f2() { cout << "D::F2\n"; }
  34. 	void f3() { cout << "D::F3\n"; }
  35.  
  36. };
  37.  
  38. int main()
  39. {
  40. 	B* d1 = new D();
  41. 	d1->f1();
  42. 	d1->f2();
  43. 	d1->f3();
  44. 	cout << "\n";
  45. 	A* d2 = new D();
  46. 	d2->f1();
  47. 	d2->f2();
  48. 	d2->f3();
  49. 	cout << "\n";
  50.   C* d3 = new D();
  51.   d3->f1();
  52.   d3->f2();
  53.   d3->f3();
  54.  
  55. }
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
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Standard input is empty
stdout
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D::F1
D::F2
B::F3

D::F1
A::F2
A::F3

D::F1
D::F2
D::F3
https://ideone.com/XkLcB9
language:
C++ (gcc 8.3)
created:
10 days ago
visibility:
public

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