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Union implementation #10

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niteria opened this issue Nov 30, 2016 · 1 comment
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Union implementation #10

niteria opened this issue Nov 30, 2016 · 1 comment

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@niteria
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niteria commented Nov 30, 2016

You're probably aware of this, but just in case you weren't.

Your union implementation overflows Int for:

iterate (\a -> union a a) a

I needed to implement something like your package for GHC and that's what I ended up with:

https://phabricator.haskell.org/diffusion/GHC/browse/master/compiler/utils/UniqDFM.hs;20c06143a7bfc6548351e610350a8e1c0d8a0bb9$128-136
@phadej
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phadej commented Apr 5, 2017

Hmm I guess I can fix it by re-indexing after union.

phadej added a commit that referenced this issue Apr 5, 2017
@phadej
Resolve #10: union packs the indices
1b78ce0
@phadej phadej closed this as completed in 0fa521e Apr 15, 2017
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@phadej @niteria