[Newbies] Double linked list

Hi, I can only find a "LinkedList" class. I'd like a double linked list. Where can I get one? Thanks, Felix ___ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners

[Newbies] Code critics - Overrides super method without calling it

Hi, I get the possible bug 'Overrides super method without calling it' for things like: Strand>>size ^ genes size I can't find an explanation of this, in case there is some nasty that I'm not aware of. It is not listed at: http://st-www.cs.uiuc.edu/users/brant/Refactory/LintChecks.html