This program gives different answers with Hugs and GHC. I think Hugs
is wrong here: see section 2.7 of the Report, the sentence containing
"{}". It wouldn't surprise me if GHC is wrong, too.
You might say it's a bad program, so Hugs and GHC can both do whatever
they want to, but I'd be a lot happier if at least one of them could
signal an error. Can someone make Hugs give an error in cases like
this?
Edmund
a = "ghc"
main = print (f "hugs")
where f a = y where
y = a
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