bitwise: fast multi-dimensional unboxed bit packed Bool arrays

[ bit-vectors, bsd3, data, data-structures, library ] [ Propose Tags ]

Unboxed multidimensional bit packed Bool arrays with fast aggregate operations based on lifting Bool operations to bitwise operations.

There are many other bit packed structures out there, but none met all of these requirements:

  1. unboxed bit packed Bool array,

  2. multi-dimensional indexing,

  3. fast (de)serialization, or interoperable with foreign code,

  4. fast aggregate operations (fold, map, zip).

Quick tour of the bitwise library:

Data.Bits.Bitwise
Lift boolean operations on Bool to bitwise operations on Data.Bits.Bits.
Data.Array.BitArray
Immutable bit arrays.
Data.Array.BitArray.ST
Mutable bit arrays in Control.Monad.ST.ST.
Data.Array.BitArray.IO
Mutable bit arrays in IO.
Data.Array.BitArray.ByteString
(De)serialization.
Codec.Image.PBM
Portable bitmap monochrome 2D image format.

Very rough performance benchmarks:


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Versions [faq] 0.1, 0.1.0.1, 0.1.0.2, 0.1.1, 0.1.1.1, 0.2, 1.0.0.1
Dependencies array, base (>=2 && <4.6), bytestring [details]
License BSD-3-Clause
Copyright (c) 2012 Claude Heiland-Allen
Author Claude Heiland-Allen
Maintainer claudiusmaximus@goto10.org
Revised Revision 1 made by ClaudeHeilandAllen at Thu Apr 26 06:51:42 UTC 2018
Category Data, Data Structures, Bit Vectors
Home page https://gitorious.org/bitwise
Source repo head: git clone git://gitorious.org/bitwise/bitwise.git
this: git clone git://gitorious.org/bitwise/bitwise.git(tag v0.1)
Uploaded by ClaudeHeilandAllen at Sat Apr 28 19:32:39 UTC 2012
Distributions NixOS:1.0.0.1
Downloads 3944 total (141 in the last 30 days)
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Status Hackage Matrix CI
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Readme for bitwise-0.1

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Interactive interpreted usage without having installed first
requires adding a search path for the respective environment:

  hugs -98 -P:src:hugs98
  ghci-7.0.4 -isrc:ghc70
  ghci-7.4.1 -isrc:ghc74

ghc < 7 has not been tested, reports welcome.