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RE: seq-some-p and nil

From: Nicolas Petton
Subject: RE: seq-some-p and nil
Date: Tue, 08 Sep 2015 21:02:10 +0200
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Drew Adams <address@hidden> writes:

>> >> To make things easier to understand, I'm taking the example of finding
>> >> the first odd number in a seq:
>> >
>> > I've never needed to do that.
>> Marvelous.
> ;-)
> Was there something wrong with the suggestion to return,
> as the non-nil value, a cons (ELEMENT . VALUE)?
> (Where ELEMENT is the sequence element that satisfies the
> predicate, and VALUE is the return value of the predicate
> for that element.)
> That gives you "some" element that satisfies the predicate
> (the first such).  And it gives you the result of the test.
> Each of these can be useful, depending on the context.

It would work, and I believe Scheme has a similar function, but I don't
want seq-some to have this extra complexity.  It could be another
function though, just like in Scheme.

Nicolas Petton

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