I'll think about adding [Set],
although I'm not sure it would really be justified given the light
use it would probably see (even counting the space savings and improved
abstraction). Any opinions on the value of adding this? - in particular,
does anyone think they'd have a lot of use for it [sc. a Set class]?
I think most vectors I have used could just as well have been sets; the same
with lists. I could come up with new uses ideas, but I already have a bunch
of examples of where I could have been using sets already. Just really
simple stuff like keeping track of an object's contents -- that would be a
good usage for a set, right? If I'm not off base here, and if sets would
really be better than lists and vectors, it sounds like a good idea.