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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. template<bool IsVector = true>
  6. struct Bar {
  7. 	template<typename In>
  8. 	static auto foo(In input) {
  9. 		return input[0];
  10. 	}
  11. };
  12. template<>
  13. struct Bar<false> {
  14. 	template<typename In>
  15. 	static auto foo(In input) {
  16. 		return input;
  17. 	}
  18. };
  19.  
  20. int main() {
  21. 	cout << Bar<true>::foo(std::vector<double>{{1, 2 , 3}}) << endl;
  22. 	cout << Bar<false>::foo(4.5) << endl;
  23. 	return 0;
  24. }
Success #stdin #stdout 0s 3460KB
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1
4.5
https://ideone.com/VWDAAw
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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