===Utilisation de array avec enum class===

<code cpp>
#include <array>

template <typename E, class T, E N>
class enum_array : public std::array<T, static_cast<std::size_t>(N)> {
 public:
  T& operator[](E e) {
    return std::array<T, static_cast<std::size_t>(N)>::operator[](
        static_cast<std::size_t>(e));
  }

  const T& operator[](E e) const {
    return std::array<T, static_cast<std::size_t>(N)>::operator[](
        static_cast<std::size_t>(e));
  }
};

enum class ENUM { a, b, c, last };

int main() {
  enum_array<ENUM, int, ENUM::last> t;
  return t.size();
}
</code>

[[https://stackoverflow.com/questions/47972453/how-to-use-a-c-enum-class-enumerator-as-stdarray-index-without-an-explicit-c|How to use a C++ enum class enumerator as std::array index without an explicit cast]] {{ :lang:cpp:array:how_to_use_a_c_enum_class_enumerator_as_std_array_index_without_an_explicit_cast_-_stack_overflow_03_02_2023_11_05_49_.html |Archive du 25/12/2017 le 03/02/2023}}