[Haskell-beginners] What is "~" ?

[Rahul Kapoor]

~ signifies a lazy pattern.

See: http://www.haskell.org/tutorial/patterns.html
for more details.

Rahul

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On Thu, Apr 2, 2009 at 7:18 PM, TG <cowscanfly at airpost.net> wrote:
> Looking at the definition of "partition", it calls
>
>    select :: (a -> Bool) -> a -> ([a], [a]) -> ([a], [a])
>    select p x ~(ts,fs) | p x       = (x:ts,fs)
>                        | otherwise = (ts, x:fs)
>
> what does the "~" do?
> Can't seem to find it in the documentation, or see a difference in
> output without it.
> Thank you.
> --
>  TG
>  cowscanfly at airpost.net
>
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