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  1. #include <iostream>
  2. #include <type_traits>
  3.  
  4. template <typename T, T N, typename = void > 
  5. struct X {
  6.   static const bool isZero = false;
  7. };
  8.  
  9. template <typename T, T N>
  10. struct X < T, N, typename std::enable_if<N == 0>::type > {
  11.   static const bool isZero = true;
  12. };
  13.  
  14. int main(int argc, char* argv[]) {
  15.     std::cout << X <int, 0>::isZero << std::endl;
  16.     std::cout << X <int, 1>::isZero << std::endl;
  17.     return 0;
  18. }
Success #stdin #stdout 0s 3296KB
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https://ideone.com/qtMGew
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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