How do I generate an IO Vector?

[tomjaguarpaw]

Data.Vector has generate :: Int -> (Int -> a) -> Vector a but I don't see an equivalent in Data.Vector.Mutable. What am I missing?

[cartazio]

Make a new vector and iterate :) The mutable API is kinda poor for historical reasons but we have plans to improve it time / contributions permitting :)

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On Fri, Jun 16, 2017 at 10:46 AM tomjaguarpaw ***@***.***> wrote: Data.Vector has generate :: Int -> (Int -> a) -> Vector a <https://hackage.haskell.org/package/vector-0.12.0.1/docs/Data-Vector.html#g:7> but I don't see an equivalent in Data.Vector.Mutable. What am I missing? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#175>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAAQwqc2XMGg7eWSoXBGzUvhVZlwlzE-ks5sEpUngaJpZM4N8jL9> .

[tomjaguarpaw]

So if someone submitted a PR to add generate it would likely be accepted?

[dolio]

I think the API for mutable vectors is lacking a lot of utilities, so yeah, I'd accept it.

It may be that there's a rewrite rule in place to turn any Vector construction into a corresponding MVector construction (because if you think about it, building an immutable vector has to be building a mutable vector and then freezing). However, off hand I don't know what it is, and it isn't the most obvious thing to try. I could take a look if you'd be interested in that, though.

[Shimuuar]

Closed in favor of #334