It's an index error the same reason that 9999999{'****'
is an index error.
In prehistoric times (Dictionary APL, 1987) Ken had
thought that i{y should be equivalent to ((#y)|i){y .
We talked him out of it.
----- Original Message -----
From: Henry Rich <[EMAIL PROTECTED]>
Date: Friday, November 23, 2007 8:22
Subject: [Jprogramming] End-condition error in ];.0
To: 'Programming forum' <[email protected]>
> (,:2 4) ];.0 (4#'*')
> **
> (,:3 4) ];.0 (4#'*')
> *
> (,:4 4) ];.0 (4#'*')
> |index error
> | (,:4 4) ];.0(4#'*')
>
> Wouldn't it be better for that last to return an empty
> string?
>
> Fails in 6.01beta and 6.02beta
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