I don't know C++ too deeply but from the little bit in the article, it seems like these `enum class` enums are actually Newtypes with associated constants inste

I don't know C++ too deeply but from the little bit in the article, it seems like these `enum class` enums are actually Newtypes with associated constants instead of actual enumerations. They clearly don't 'enumerate' all possible values but they do give different behavior from their underlying type. Is it possible to override the constructor so it limits the allowed values? Implement other methods on the `enum class`? If so then that makes them still very useful, albeit not in the usual `enum` sense.