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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class A
  5. {
  6. public:
  7.     virtual void foo() { cout << "A" << endl; }
  8. };
  9.  
  10. class B : public A
  11. {
  12. public:
  13. 	virtual void foo() { cout << "B" << endl; }
  14. };
  15.  
  16. int main()
  17. {
  18. 	B b;
  19. 	b.foo(); //--> B
  20.  
  21. 	A a = b;
  22. 	a.foo(); //--> A
  23.  
  24. 	A& ra = b;
  25. 	ra.foo(); //--> B
  26.  
  27. 	return 0x0;
  28. }
Success #stdin #stdout 0.02s 2680KB
comments (?)
stdin
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Standard input is empty
stdout
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B
A
B
https://ideone.com/MxDztc
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
secret

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