[Haskell-cafe] Monomorphism restriction

[Neil Mitchell]

Hi

This should clear up some of the questions:

http://haskell.org/hawiki/MonomorphismRestriction

Note to others (esp Cale): does this page not appear on the new wiki?

Thanks

Neil

On 1/23/07, Marco Túlio Gontijo e Silva <malebria at riseup.net> wrote:
> Hello,
>
> I talked for a while with bd_ about this on #haskell, and I think maybe
> I'm just being silly. But I can't get why:
>
> > lambda = \x -> length (show x)
>
> or
>
> > dot = length . show
>
> is different from
>
> > pre x = length $ show x
>
> I read about monomorphism restriction on the haskell 98 report, but I
> couldn't find where it explains the reason why these different versions
> influence on type infer.
>
> Thanks for any help.
>
> --
> malebria
> Marco Túlio Gontijo e Silva
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