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Alan Watson scripsit:
> "saying what the behaviour of equal? is" is not the same as specifying
> it completely. I am simply asking for language similar to that for
> records in R7RS. That is, equal? on boxes will return #t if eqv? returns
> #t but can return #t or #f if eqv? returns #f.
I think the Right Thing is to say that they behave as if they were implemented
by records.
> I do think this is the Wrong Thing, and damages Scheme as a functional
> programming language for little gain, but I lost that argument on
> records.
See my ballot at
<http://lists.scheme-reports.org/pipermail/scheme-reports/2013-May/003396.html>
on "the best possible result" vs. "the best result possible."
--
Only do what only you can do. John Cowan <cowan@xxxxxxxx>
--Edsger W. Dijkstra's advice
to a student in search of a thesis