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  1. #include <iostream>
  2. #include <utility>
  3. #include <type_traits>
  4.  
  5. namespace Ckb
  6. {
  7.  
  8. struct Version
  9. {
  10. 	enum { Major = 1, Minor = 0, Release = 0 };
  11. 	void CheckDependencies()
  12. 	{
  13. 		std::cout << "Ckb Check" << std::endl;
  14. 	}
  15. };
  16.  
  17. }  // namespace Ckb
  18.  
  19. namespace Cg
  20. {
  21.  
  22. struct Version { enum { Major = 1, Minor = 8, Release = 1 }; };
  23.  
  24. }  // namespace Cg
  25.  
  26. template <typename T, bool> struct RunCheck
  27. { void operator()() {std::cout << "false" << std::endl;} };
  28.  
  29. template <typename T> struct RunCheck<T, true>
  30. { void operator()() { std::cout << "true" << std::endl; } };
  31.  
  32. template <typename T> void Do()
  33. {
  34. 	RunCheck<T, std::is_member_function_pointer<void(T::*)()>::value>()();
  35. }
  36.  
  37. int main()
  38. {
  39. 	Do<Cg::Version>();
  40. 	Do<Ckb::Version>();
  41. 	return 0;
  42. }
  43.  
Success #stdin #stdout 0s 3296KB
comments (?)
stdin 
Standard input is empty
stdout 
true
true
https://ideone.com/HZ17Wf
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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