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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. namespace Detail
  5. {
  6. 	template<typename T>
  7. 	struct Tag
  8. 	{
  9. 		using type = T;
  10. 	};
  11.  
  12. 	template<typename S, typename T, T p>
  13. 	struct Hold
  14. 	{
  15. 		typename S::type m_a = p;	
  16. 		static Hold instance;
  17. 	};
  18.  
  19. 	template<typename S, typename T, T p>
  20. 	Hold<S, T, p> Hold<S, T, p>::instance;
  21.  
  22. }
  23.  
  24.  
  25. class A
  26. {
  27. private:
  28. 	void func()
  29. 	{
  30. 	}
  31. };
  32.  
  33. using mtype = void (A::*)();
  34. template struct Detail::Hold<Detail::Tag<mtype>, mtype, &A::func>;
  35.  
  36. int main() {
  37. 	// your code goes here
  38. 	return 0;
  39. }
Success #stdin #stdout 0.01s 5520KB
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https://ideone.com/TMKXTE
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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