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  1. #include <iostream>
  2. #include <type_traits>
  3.  
  4. template <typename T> bool isConst(T& x)
  5. {
  6.    return false;
  7. }
  8.  
  9. template <typename T> bool isConst(T const& x)
  10. {
  11.    return true;
  12. }
  13.  
  14. int main() 
  15. {
  16.    int a = 1;
  17.    const int& x = a;
  18.    std::cout << std::boolalpha;
  19.    std::cout << isConst(x) << std::endl;
  20.    std::cout << std::is_const<const int&>::value << std::endl;
  21. }
Success #stdin #stdout 0s 3296KB
comments (?)
stdin
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Standard input is empty
stdout
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true
false
https://ideone.com/f3r6cu
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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