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  1. #include <iostream>
  2.  
  3. enum MyValue
  4. {
  5.   Unk,
  6.   A,
  7.   B
  8. };
  9.  
  10. template<typename T>
  11. struct get_value
  12. {
  13.   static constexpr MyValue value = MyValue::Unk;
  14. };
  15.  
  16. template<>
  17. struct get_value<int>
  18. {
  19.   static constexpr MyValue value = MyValue::A;
  20. };
  21.  
  22. template<>
  23. struct get_value<double>
  24. {
  25.  static constexpr MyValue value = MyValue::B;
  26. };
  27.  
  28. int main()
  29. {
  30.     std::cout << get_value<char>::value << std::endl;
  31.     std::cout << get_value<int>::value << std::endl;
  32.     std::cout << get_value<double>::value << std::endl;
  33. }
Success #stdin #stdout 0s 3468KB
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https://ideone.com/jLbpMb
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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