What stops Data.Foldable from having foldl1'?

[Tony Morris]

foldl1 on Foldable is not a friendly function :)

You want Data.Foldable1
https://hackage.haskell.org/package/semigroupoids-5.2.1/docs/Data-Semigroup-Foldable.html

Note that this one is friendly.


On 07/03/18 02:30, sonne wrote:
> Good evening.
>
> I notice Data.Foldable ain't got no `foldl1'`, while `foldl'` and
> `foldl1` are both there. Is there a reason? What will it take to have
> it introduced?
>
> I refer to this specific version, which is to my understanding the
> latest to have been released:
> https://hackage.haskell.org/package/base-4.10.1.0/docs/Data-Foldable.html
>
> Thank you.
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