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  1. #include <iostream>
  2. #include <array>
  3.  
  4.  
  5. template<typename array_type>
  6. constexpr auto array_size(const array_type& arr) {
  7.     auto size = arr.size();
  8.     return size;
  9. }
  10.  
  11.  
  12. int main() {
  13.     constexpr std::array<int,5> arr = {1, 2, 3, 4, 5};
  14.     constexpr auto as = array_size(arr);
  15.     std::cout << array_size(arr);
  16. }
  17.  
Success #stdin #stdout 0s 15232KB
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5
https://ideone.com/ftBf5y
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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