fork download
copy 
  1. #include <iostream>
  2. #include <type_traits>
  3.  
  4. using namespace std;
  5.  
  6. template<typename T>
  7. const char* describe(T,
  8. 					 typename enable_if<is_integral<T>::value>::type* = 0)
  9. {
  10. 	return "integral";
  11. }
  12.  
  13. template<typename T>
  14. const char* describe(T,
  15. 					 typename std::enable_if<is_floating_point<T>::value>::type* = 0)
  16. {
  17.     return "floating_point";
  18. }
  19.  
  20. template<typename T>
  21. const char* describe(T,
  22. 					 typename std::enable_if<!std::is_integral<T>::value && !std::is_floating_point<T>::value && std::is_pod<T>::value>::type* = 0)
  23. {
  24.     return "pod";
  25. }
  26.  
  27. struct pod {};
  28.  
  29. int main(void)
  30. {
  31.     std::cout << describe(7) << std::endl;
  32.     std::cout << describe(7.0f) << std::endl;
  33.     std::cout << describe(pod()) << std::endl;
  34. }
Success #stdin #stdout 0s 3340KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
integral
floating_point
pod
https://ideone.com/jb70Cd
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!