[Haskell-cafe] what does ' mean?
logesh at iafrica.com
Sun Jul 17 15:37:20 EDT 2005
A v. newbie question.
I found the following code on the web
/-- Andrew Bromage
/-- If you're doing permutations, then I suppose you want this too:
//-- (subLists might be a more suggestive name)
/combinations *:: [a] -> [[a]]
*combinations  = []
= combinations xs ++ [ x:xs' | xs' <- combinations xs ]
What does ' (apostrophe) mean? I see no reference to it in Simon
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