Re: [Haskell-cafe] groupBy huh?

Jacek Generowicz schrieb:

Hi Cafe,

It seems that I don't understand what groupBy does.

I expect it to group together elements as long as adjacent ones satisfy the predicate, so I would expect ALL four of the following to give one group of 3 and a group of 1.

Prelude> :m + Data.List Prelude Data.List> groupBy (<) "abcb" ["abcb"] Prelude Data.List> groupBy (<) "abca" ["abc","a"] Prelude Data.List> groupBy (<) [1,2,3,2] [[1,2,3,2]] Prelude Data.List> groupBy (<) [1,2,3,1] [[1,2,3],[1]]

What am I missing?

http://hackage.haskell.org/packages/archive/utility-ht/0.0.5.1/doc/html/Data...