On Aug 20, 2014 7:52 AM, "Johan Holmquist" <holmisen@gmail.com> wrote:

Comparing two structures for equality (structurally) can be expensive. But if their references are the same they would for sure be equal (unless (==) was defined in some funny way). Does GHC perform any such optimization?

(Likely a question for another list but I make a stab here first. )

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