equivalence

Maintaining an equivalence relation implemented as union-find using STT.

https://github.com/pa-ba/equivalence

Version on this page:0.3.2@rev:1
LTS Haskell 23.3:0.4.1
Stackage Nightly 2025-01-12:0.4.1
Latest on Hackage:0.4.1

See all snapshots equivalence appears in

BSD-3-Clause licensed by Patrick Bahr
Maintained by [email protected]
This version can be pinned in stack with:equivalence-0.3.2@sha256:c83ef0092c45011e4d58091d0d90fdd068ef8e04dddaf69e8df66631ef031604,1683

Module documentation for 0.3.2

Used by 1 package in lts-9.21(full list with versions):
Agda

This is an implementation of Tarjan's Union-Find algorithm (Robert E. Tarjan. "Efficiency of a Good But Not Linear Set Union Algorithm", JACM 22(2), 1975) in order to maintain an equivalence relation. This implementation is a port of the union-find package using the ST monad transformer (instead of the IO monad).

Changes

0.3.2
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* add Applicative constraints for backwards compatibility with GHC 7.8

0.3.1
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* use transformers-compat for backwards compatibility with older versions of transformers

0.3.0.1
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* add CHANGES.txt to .cabal file

0.3
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* add suport for Control.Monad.Except (thus the new dependency constraint 'mtl >= 2.2.1')