ordered-containers

Set- and Map-like types that remember the order elements were inserted

LTS Haskell 24.28:0.2.4
Stackage Nightly 2026-01-18:0.2.4
Latest on Hackage:0.2.4

See all snapshots ordered-containers appears in

BSD-3-Clause licensed by Daniel Wagner
Maintained by [email protected]
This version can be pinned in stack with:ordered-containers-0.2.4@sha256:b232b6fbaad48611ffacf0bb606fbf63367014bbb7c59ff942138524347bbe22,834

Module documentation for 0.2.4

  • Data
    • Data.Map
      • Data.Map.Ordered
        • Data.Map.Ordered.Strict
    • Data.Set
      • Data.Set.Ordered
Depends on 3 packages(full list with versions):
hashable
Used by 6 packages in nightly-2026-01-18(full list with versions):
csv-conduit, cuddle, skeletest, th-desugar, typst, what4

Changes

Revision history for ordered-containers

0.2.4 – 2024-05-18

  • Misc. housekeeping – version bumps, documentation fixes, etc. (thank you Ryan Scott and Andrew Kent!)
  • Add IsList and Hashable instances (thank you Alexis King!)
  • the strict variant of alter

0.2.3 – 2022-11-01

  • alter (thank you Raoul Hidalgo Charman!)

0.2.2 – 2019-07-05

  • Add toMap and toSet, which support efficient conversions from OMaps/OSets to Maps/Sets, respectively.

0.2.1 – 2019-03-25

  • Compatibility fixes from Ryan Scott (thanks!)

0.2 – 2019-03-24

  • Support many more operations:
    • Semigroup,Monoid,Data,Typeable for OSet
    • Semigroup,Monoid,Functor,Traversable,Data,Typeable for OMap
    • union and intersection primitives for both
  • Document asymptotics (when they vary from Set and Map)

0.1.1 – 2018-10-31

  • Metadata changes only

0.1.0 – 2016-12-26

  • Documentation fix
  • Live up to the package version boundary claims
  • Use enough version parts to conform to the PVP

0.0 – 2016-12-23

  • First version released on an unsuspecting world