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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. template<typename T>   // primary template
  5. struct is_int
  6. {
  7.     static const bool value = false;
  8. };
  9.  
  10. template<>  // explicit specialization for T = int
  11. struct is_int<int>
  12. {
  13.     static const bool value = true;
  14. };
  15.  
  16.  
  17. int main() {
  18.     std::cout << is_int<char>::value << std::endl; 
  19.     std::cout << is_int<int>::value << std::endl;
  20.     return 0;
  21. }
Success #stdin #stdout 0.01s 5320KB
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stdin 
Standard input is empty
stdout 
0
1
https://ideone.com/7Z0SZB
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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