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Re: Traits, dictionaries

This page is part of the web mail archives of SRFI 44 from before July 7th, 2015. The new archives for SRFI 44 contain all messages, not just those from before July 7th, 2015.

bear wrote:
> A minor note regarding the wording in the draft under "Equivalence"...
>    Collections are considered equivalent with respect to scheme's
>    equal? operator when they contain a like number of values, and
>    where each value in one collection is equal? to a value in the
>    second collection.
>    ...Further conditions valid only on sequences elided ....
> Taking this literally, and using unordered bags for our collections,
> I observe that if one bag contains 2 b's and 1 a, it is equal? to
> another bag that contains 1 b and 2 a's.
> This is probably not what you want.

When I wrote up my comprehensive review/overhaul/recommendation for the
collection procedures, I changed this so that they're only equivalent if
(*-count value) is the same for both collections.
Bradd W. Szonye