Re: Example of sets and indexing

[Ajoy Victor]

>     l = [List createBegin: aZone];
>     [l setIndexFromMemberLoc: offsetof (Integer, link)];
>     l = [l createEnd];

Could you please explain some more how this line:

[l setIndexFromMemberLoc: offsetof (Integer, link)];

ensures unique members in the list.

> OrderedSet is a thin veneer on List w/ setIndexFromMemberLoc:.  Since
> the implementation isn't much more than that, and doesn't actually
> completely implement KeyedCollection as you might expect, I'd say
> use the lower-level interface directly; it seems more honest.
> Alternatively, use a Map with the key and member being the same.

I should not use the Set collection that is apparent. Are you saying here I can 
use OrderedSet because it's not implemented as Set. Or that using 
"the lower-level interface" of the OrderedSet collection is a safer alternative
to use Set (How does this lower-level interface work?).

The thing is I need a Set abstraction be it based on List, OrderSet or Map
but I need to understand at least one way. What do you advice me?

Daniel


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