P2996R4 - Reflection for C++26

 undefined

    
template <typename E>
  requires std::is_enum_v<E>
constexpr std::string enum_to_string(E value) {
  template for (constexpr auto e : std::meta::enumerators_of(^E)) {
    if (value == [:e:]) {
      return std::string(std::meta::name_of(e));
    }
  }

  return "<unnamed>";
}