Re: [Haskell-cafe] groupBy huh?

Excerpts from Jacek Generowicz's message of Fri Mar 04 00:18:07 +0000 2011:

Prelude Data.List> groupBy (<) [1,2,3,2] [[1,2,3,2]] This is wired. However if you think about the algorithm always using the first element of a list and comparing it against the next elements you get

1 < 2 ok, same group 1 < 3 dito 1 < 2 dito Thus you get [[1,2,3,2]] Marc Weber