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  3. December 2001

RE: array handling

>From: "jt" <jt@ee.net>
>Date: Sun, 2 Dec 2001 18:39:53 -0500
> ...
>But you said ASCEND causes a binary search...?!?  Sheesh...  When did THAT
>happen...?!?  (I'd always thought it still used sequential search, and
>ASCEND just allowed for *LT or *GT type lookups.)
>...

jt, LOOKUP indeed still uses a sequential search.  But the new %lookup
builtin does a binary search for ordered arrays.  %lookup can behave
this new (new for RPG ...) way because there's no compatability issue.

(LOOKUP can't change to a binary search because of possibly desirable
behaviour with arrays that are not actually sorted.  We won't change the
behaviour, whether or not it's documented.)

Barbara Morris

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