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An efficient implementation of maps from integer keys to values (dictionaries). This module re-exports the value lazy Data.IntMap.Lazy API, plus several deprecated value strict functions. Please note that these functions have different strictness properties than those in Data.IntMap.Strict: they only evaluate the result of the combining function. For example, the default value to insertWith' is only evaluated if the combining function is called and uses it. These modules are intended to be imported qualified, to avoid name clashes with Prelude functions, e.g.
import Data.IntMap (IntMap) import qualified Data.IntMap as IntMap
The implementation is based on big-endian patricia trees. This data structure performs especially well on binary operations like union and intersection. However, my benchmarks show that it is also (much) faster on insertions and deletions when compared to a generic size-balanced map implementation (see Data.Map).- Chris Okasaki and Andy Gill, "Fast Mergeable Integer Maps", Workshop on ML, September 1998, pages 77-86, http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.37.5452
- D.R. Morrison, "PATRICIA -- Practical Algorithm To Retrieve Information Coded In Alphanumeric", Journal of the ACM, 15(4), October 1968, pages 514-534.
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containers Data.IntMap.Internal A map of integers to values a.
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containers Data.IntMap.Lazy A map of integers to values a.
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containers Data.IntMap.Strict A map of integers to values a.
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containers Data.IntMap.Strict.Internal A map of integers to values a.
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No documentation available.
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rio RIO.Prelude.Types A map of integers to values a.
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relude Relude.Container.Reexport A map of integers to values a.
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uniplate Data.Generics.Uniplate.Data.Instances Invariant preserving version of IntMap from the containers packages, suitable for use with Uniplate. Use toIntMap to construct values, and fromIntMap to deconstruct values.
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classy-prelude ClassyPrelude A map of integers to values a.
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