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  1. #include <type_traits>
  2. #include <iostream>
  3.  
  4. template<typename T>
  5. void use_impl(const T&, std::false_type)
  6. {
  7. 	std::cout << "use_impl(false)" << std::endl;
  8. }
  9.  
  10. template<typename T>
  11. void use_impl(const T&, std::true_type)
  12. {
  13. 	std::cout << "use_impl(true)" << std::endl;
  14. }
  15.  
  16. template<typename T>
  17. void use(const T& v)
  18. {
  19.    use_impl(v, typename std::is_integral<T>::type());
  20. }
  21.  
  22. int main()
  23. {
  24.    use(1);
  25.    use(1.2);
  26. }
  27.  
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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use_impl(true)
use_impl(false)
https://ideone.com/469YTq
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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