Hugs-Bugs

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May 2008

3 participants
2 discussions

[Hugs] elem of infinite set of tuple
by leledumbo 16 May '08

16 May '08

I don't know how Haskell should behave on this. Consider this function: elemOf (x,y) = (x,y) `elem` [ (a,b) | a <- [0..], b <- [0..] ] If I try to query elemOf (1,1), the interpreter keeps searching and searching but it never makes it. But if I query elemOf (0,1) (or anything as long as the first element is 0), it can find it easily. I wonder how Hugs handles this. >From my point of view, instead of starting from (1,0), Hugs starts from (0,0), which will never finish since the limit of the second element is infinite. -- View this message in context: http://www.nabble.com/elem-of-infinite-set-of-tuple-tp17268995p17268995.html Sent from the Haskell - Hugs-Bugs mailing list archive at Nabble.com.

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[Hugs] Hugs doesn't know List Difference operator (\\)
by leledumbo 14 May '08

14 May '08

I'm reading some Haskell Tutorial when I arrive at List Difference operator, which is \\. But when I try on Hugs, it responded: ERROR - Undefined variable "\\" -- View this message in context: http://www.nabble.com/Hugs-doesn%27t-know-List-Difference-operator-%28%5C%5… Sent from the Haskell - Hugs-Bugs mailing list archive at Nabble.com.

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