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[ Paquet source : haskell-bitwise  ]

Paquet : libghc-bitwise-dev (1.0.0.1-2 et autres)

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fast multi-dimensional unboxed bit packed Bool arrays

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:

* immutable random access single bit reads: @BitArray ix@ is about 40% slower than @UArray ix Bool@,

* 'Control.Monad.ST.ST' mutable random access single bit reads: @STBitArray s ix@ is about the same as @STUArray s ix Bool@,

* immutable map @Bool -> Bool@: @BitArray ix@ is about 85x faster than @UArray ix Bool@,

* immutable zipWith @Bool -> Bool -> Bool@: @BitArray ix@ is about 1300x faster than @UArray ix Bool@.

This package provides a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.

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Télécharger libghc-bitwise-dev

Télécharger pour toutes les architectures proposées
Architecture Version Taille du paquet Espace occupé une fois installé Fichiers
amd64 1.0.0.1-2+b1 142,6 ko1 441,0 ko [liste des fichiers]
arm64 1.0.0.1-2+b1 188,8 ko2 153,0 ko [liste des fichiers]
armel 1.0.0.1-2+b1 178,4 ko1 857,0 ko [liste des fichiers]
armhf 1.0.0.1-2+b1 173,9 ko1 831,0 ko [liste des fichiers]
i386 1.0.0.1-2+b1 250,0 ko2 028,0 ko [liste des fichiers]
mips64el 1.0.0.1-2+b1 198,2 ko2 606,0 ko [liste des fichiers]
mipsel 1.0.0.1-2+b1 196,4 ko2 158,0 ko [liste des fichiers]
ppc64el 1.0.0.1-2+b1 198,9 ko2 447,0 ko [liste des fichiers]
s390x 1.0.0.1-2+b1 225,1 ko2 495,0 ko [liste des fichiers]