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  1. #include <iostream>
  2.  
  3.  
  4. template<class T> 
  5. struct Base 
  6. {
  7.   typedef T type;
  8.   static const int n = 3;
  9.   virtual int f() = 0;
  10.   int f(int x) { return x * 2; }
  11. };
  12.  
  13. template<class T> 
  14. struct Derived : Base<T> 
  15. {
  16.     using typename Base<T>::type;
  17.     using Base<T>::n;
  18.  
  19.     type field;
  20.     int f() { return n; }
  21. };
  22.  
  23.  
  24. int main()
  25. {
  26. 	Derived<float> d;
  27. 	d.field = 42.0f;
  28. 	std::cout << d.f();
  29. }
Success #stdin #stdout 0s 3340KB
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https://ideone.com/zNcYCv
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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