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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. template <class Derived>
  5. struct Base
  6. {
  7. 	Base()
  8. 	{
  9. 		static_cast<Derived*>(this)->foo();	
  10. 	}
  11.  
  12. 	std::vector<int> m_ints;
  13. };
  14.  
  15. struct Derived : Base<Derived>
  16. {
  17. 	Derived() : Base() 
  18. 	{
  19. 		std::cout << a;
  20. 	}
  21.  
  22. 	void foo()
  23. 	{
  24. 		m_ints.push_back(37);
  25. 		a = 4;
  26. 	}
  27.  
  28. 	int a;
  29. };
  30.  
  31. int main() 
  32. {
  33. 	Derived d;
  34. 	return 0;
  35. }
Success #stdin #stdout 0s 3428KB
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https://ideone.com/XNqyqo
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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