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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class object
  5. {
  6. public:
  7. 	void set_tag(int t){
  8. 		tag = t;
  9. 	}
  10.  
  11. 	int get_tag(){
  12. 		return tag;
  13. 	}
  14.  
  15. private:
  16. 	int tag;
  17. };
  18.  
  19. template<typename T>
  20. class printer
  21. {
  22. public:
  23. 	void print()
  24. 	{
  25. 		T* obj = static_cast<T*>(this);
  26. 		std::cout << obj->get_tag() << std::endl;
  27. 	}
  28. };
  29.  
  30. class test : public object, public printer<test>
  31. {
  32. };
  33.  
  34. int main() 
  35. {
  36. 	test t;
  37. 	t.set_tag(5);
  38. 	t.print();
  39.  
  40. 	return 0;
  41. }
Success #stdin #stdout 0s 3096KB
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Standard input is empty
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5
https://ideone.com/RTBHvr
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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