
genericLength is extremely inefficient for typical numeric types. Int is a
rather sad type for these things; it really should be Word. But that may
not be worth fixing.
On Tue, Nov 13, 2018, 9:51 PM Evan Laforge You can already get these as Data.List.genericLength and
Data.List.genericReplicate As for changing the prelude ones, this would probably cause a lot of
busywork. Where I work we compile with -Werror and -Wtype-defaults,
so a lot of places might have to get type annotations.
On Tue, Nov 13, 2018 at 5:19 PM Vanessa McHale Would it be possible to generalize replicate and length to have type
signatures replicate :: Integral a => a -> b -> [b] and length :: (Integral a, Foldable t) => t b -> a ? There have been a few instances where such a thing would have been
useful to me. Cheers _______________________________________________
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