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  1. #include <iostream>
  2.  
  3. template <typename Derived>
  4. struct CRTP {
  5.     static constexpr int num() { return  Derived::value + 1; }
  6. };
  7.  
  8. struct A : CRTP<A> {
  9.     static constexpr int value = 5;
  10. };
  11.  
  12. int main()
  13. {
  14. 	std::cout << A::num();
  15. 	return 0;
  16. }
Success #stdin #stdout 0s 3456KB
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6
https://ideone.com/zbradM
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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