Re: enums that are really just sets of constants

[Jonathan Wakely <gtkmm kayari org>]

On 22 April 2017 at 05:57, Dr. Diether Knof wrote:
> Hello,
>
> for the integer wraps used for flags I have a third proposition, a working example is attached:
> * "enum class DisplayOption" for the individual flags
> * "class DisplayOptions" with an implicit converter DisplayOption -> DisplayOptions
> So we get an enum for the single options and avoid the old enum-style.

Why not have the constants declared inside the class, so you only have
one name to remember, not DisplayOption and DisplayOptions?

You can overload operator| and operator& for enums, so the only
benefit to this seems to be the implicit conversion to bool (why not
explciit?)