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  1. #include <iostream>
  2. #include <memory>
  3.  
  4. struct Base{
  5. 	virtual std::unique_ptr<Base> clone() const = 0;
  6. };
  7.  
  8. struct Derived : Base{
  9. 	std::unique_ptr<Base> clone() const{
  10. 		return std::make_unique<Derived>();
  11. 	}
  12. };
  13.  
  14. int main() {
  15. 	Derived d;
  16. 	auto upd = d.clone();
  17. }
Success #stdin #stdout 0s 3452KB
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https://ideone.com/jrHcbx
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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