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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. struct A {
  6. 	virtual void foo () { cout<<"nothing!"<<endl; }
  7. };
  8. struct B : A {
  9. 	void foo () override { cout<<"this is a B object: foo!"<<endl; }
  10. };
  11. struct C : A {};
  12.  
  13. int main() {
  14. 	vector<A*> va; 
  15. 	va.push_back (new A);
  16. 	va.push_back (new B); 
  17. 	va.push_back(new C); 
  18. 	for (auto x : va) 
  19. 	   x->foo(); 
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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Standard input is empty
stdout
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nothing!
this is a B object: foo!
nothing!
https://ideone.com/1vHXsa
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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