It's worth remembering that that nextPutAl: etc code is only causing a problem in the 'special fast case' branch. The 'normal' case would be to iterate on the parameter and #add: to the recipient.  OrderedCollection does *that* ok. I must admit to never having looked at LinkedList>#add: ... yup that would be fine too. The only collection hierarchy class I see which doesn't like #add: is Matrix, and I'm not utterly sure that it ought to be under Collection

tim
--
tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
Useful random insult:- People around her are at risk of second hand idiocy.