Data.Graph transitive closure

David Feuer david.feuer at
Wed Jun 19 22:19:32 UTC 2019

I just noticed that Data.Graph doesn't offer a transitive closure
operation. Looking into implementing one, I discovered that doing so
efficiently has been the subject of non-trivial research [*]. So if there's
any demand, we should try to implement a reasonably efficient version in
containers. Anybody want one?

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