Am 11.04.2014 20:32, schrieb Walter Bright:
On 4/11/2014 4:18 AM, Jonathan M Davis wrote:
I don't see much point to enums if they're not intended to list
all of their values.
Again, bit masks, Color, etc., and to provide a simple integral type
that behaves like an integral type yet can be overloaded and type checked.
Andrei has pointed out that these uses are unsound if you desire that
the enumeration lists all possible values, and he's right. But I don't
think that automatically makes them pointless.
Heck, look at the "StorageClass" typedef in dmd's source code, and the
list of STC macro definitions. That would make a nice D enum, and have
some type safety too. It would be much more sound than the C method used.
Sure, but aren't those use cases a consequence of C's misuse of enums,
which are handled better by numeric constants?
--
Paulo
