[REBOL] Re: Rebol interpreter bug with comparison of dates
From: lmecir:mbox:vol:cz at: 5-Dec-2002 10:52
Hi Gabriele,
> So, I agree with you that comparison only makes sense to things
> that can be ordered; however, due to its nature, REBOL will
> actually order any value, even if this ordering is absolutely
> arbitrary. You don't really want SORT to give back an error, and
> once we have a function that can sort any couple of REBOL values,
> we have an implicit (even if arbitrary) ordering relation between
> all of the REBOL values.
just a little nitpicking: unfortunately, your comparison functions will not
compare any Rebol values. You would have to work harder to achieve that. The
trouble is with:
1) errors
2) cyclic series
Some inspiration can be found in
http://www.rebolforces.com/~ladislav/evaluation.html .
As to whether it is useful to have such comparison:
Some applications may need it, therefore it might be handy.
Ciao
-L
