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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct A{
  5. 	virtual void foo()  = 0;
  6. };
  7.  
  8. struct B:A{
  9. 	void foo()  { cout<< "A" << endl;};
  10. };
  11.  
  12. struct C:A{
  13. 	void foo()  { cout<< "C" << endl;};
  14. };
  15.  
  16. template <class T>
  17. struct enc{
  18. 	T in; // should be private, I'm just lazy :)
  19. 	A &a;
  20. 	int x;
  21. 	enc(): in(T()), a(in), x(0) {
  22. 	}
  23.  
  24. };
  25. int main() {
  26. 	enc<C> c;
  27. 	c.a.foo();
  28. 	enc<B> b;
  29. 	b.a.foo();
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 3340KB
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C
A
https://ideone.com/Te5dIG
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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