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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. template<class T>
  7. struct is_container
  8. {
  9. 	static const bool value = false;
  10. };
  11.  
  12. template<>
  13. template<class T, class Alloc>
  14. struct is_container<std::vector<T, Alloc>>
  15. {
  16. 	static const bool value = true; 
  17. };
  18.  
  19. // ... same specializations for other containers...
  20.  
  21. int main() {
  22. 	cout << is_container<std::vector<int>>::value << endl;
  23. 	cout << is_container<int>::value << endl;
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 3340KB
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https://ideone.com/W5GjUl
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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