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  1. #include <iostream>
  2. #include <memory>
  3. using namespace std;
  4.  
  5. struct IParse{
  6. 	virtual void  foo() = 0;
  7. };
  8.  
  9. struct P1 : IParse{
  10. 	void foo(){
  11. 		cout<<"Hi1"<<endl;
  12. 	}
  13. };
  14.  
  15. struct P2 : IParse {
  16. 	void foo(){
  17. 		cout<<"Hi2"<<endl;
  18. 	}
  19. };
  20.  
  21. unique_ptr<IParse> getParser(int x){
  22. 	switch (x){
  23. 		case 1:
  24. 			return unique_ptr<IParse>(new P1());
  25. 			break;
  26. 		case 2:
  27. 			return unique_ptr<IParse>(new P2());
  28. 			break;
  29. 	}
  30. 	return nullptr;
  31. }
  32.  
  33. int main() {
  34. 	auto p1(getParser(1));
  35. 	p1->foo();
  36.  
  37. 	auto p2(getParser(2));
  38. 	p2->foo();
  39. 	return 0;
  40. }
Success #stdin #stdout 0s 3428KB
comments (?)
stdin 
Standard input is empty
stdout 
Hi1
Hi2
https://ideone.com/XlwEqm
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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