I’m using memoized copying functions to maximize sharing in a tree/dag.  It works under Hugs but not GHCi 5.03 on Windows XP.  I’m stuck here and so would sure appreciate some help.  I’ve attached a simple demo module with examples that illustrate the problem.

 

    - Conal

 

Attachment: MemoTest.hs
Description: MemoTest.hs

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