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  1. #include <iostream>
  2. #include <memory>
  3. using namespace std;
  4.  
  5. struct A{
  6. 	virtual void foo()=0;
  7. };
  8.  
  9. struct B:A{
  10. 	void foo() { cout<< "A" << endl;};
  11. };
  12.  
  13. struct C:A{
  14. 	void foo() { cout<< "C" << endl;};
  15. };
  16.  
  17. struct enc{
  18. 	unique_ptr<A> a;
  19. 	int x;
  20. 	enc(unique_ptr<A> p): a(std::move(p)), x(0) {
  21. 	}
  22.  
  23. };
  24. int main() {
  25. 	enc c( unique_ptr<A>(new C()) );
  26. 	c.a->foo();
  27. 	enc b( unique_ptr<A>(new B()) );
  28. 	b.a->foo();
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 3428KB
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Standard input is empty
stdout
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C
A
https://ideone.com/rZ7TQj
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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