Re: [Haskell-cafe] How the following works

Am Dienstag 14 April 2009 10:39:28 schrieb Tsunkiet Man:

Hello,

I can hardly imagine how the following code works:

cinits :: [a] -> [[a]] cinits [] = [[]] cinits (x:xs) = [] : map (x:) (cinits xs)

can someone give me a good explaination?

Perhaps it's easier to follow as a list comprehension: cinits [] = [[]] cinits (hd:tl) = [] : [ hd : rest | rest <- cinits tl ]

(I understand it a bit, but it's really hard for me to figure out how a map in a map function works.)

Thank you for your time,

Tsunkiet