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  1. #include <iostream>
  2.  
  3. template<class T>
  4. class CRTP
  5. {
  6. public:
  7. 	void Override() {}
  8.  
  9. 	void Call()
  10. 	{
  11. 		T* p = (T*)this;
  12. 		p->Override();
  13. 	}
  14. };
  15.  
  16.  
  17. class Super1 : public CRTP<Super1>
  18. {
  19. public:
  20. 	void Override()
  21. 	{
  22. 		std::cout << "Super1" << std::endl;
  23. 	}
  24. };
  25.  
  26. class Super2 : public CRTP<Super2>
  27. {
  28. public:
  29. 	void Override()
  30. 	{
  31. 		std::cout << "Super2" << std::endl;
  32. 	}
  33. };
  34.  
  35. int main()
  36. {
  37. 	Super1 s1;
  38. 	s1.Call();
  39.  
  40. 	Super2 s2;
  41. 	s2.Call();
  42. }
  43.  
Success #stdin #stdout 0s 3140KB
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Super1
Super2
https://ideone.com/mJJDpH
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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