Bug: (for X previous Y ...) does not check existence of Y

[Ilya Perminov]

Hello,


Iterate silently ignores "for ... previous" clauses that reference undefined variables, e.g,

(iter (repeat 2)
(for x previous y initially 0)
(collect x))

returns (0 0).


A patch to fix the bug is attached. Can someone apply it please.


Thanks,

Ilya

[Attila Lendvai]

Post by Ilya Perminov
Iterate silently ignores "for ... previous" clauses that reference undefined
variables, e.g,
(iter (repeat 2)
(for x previous y initially 0)
(collect x))
returns (0 0).
A patch to fix the bug is attached. Can someone apply it please.

pushed. thanks for the report and the fix!