[Haskell] Newbie: fix

[phiroc at free.fr]

Hello,

could someone please explain why "fix" is necessary here:

fix (\f l -> if null l then [] else let (s,e) = break (==' ') l in s:f (drop 1
e))

Source: http://www.haskell.org/haskellwiki/Blow_your_mind

Thanks.

phiroc
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Hello,

could someone please explain why "fix" in necessary here:

fix (\f l -> if null l then [] else let (s,e) = break (==' ') l in s:f (drop 1
e))

Source: http://www.haskell.org/haskellwiki/Blow_your_mind

Thanks.

phiroc