hgmp: Haskell interface to GMP

[ bsd3, library, numeric ] [ Propose Tags ]

Currently, types and instances, and marshalling between Integer and Rational and the corresponding GMP types. That is, enough to allow FFI to GMP code (whether in GMP itself or in third-party code that uses GMP).

Supports only GHC with integer-gmp, this might change if there's any demand.


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Versions 0.1.0.0, 0.1.0.1, 0.1.1
Change log CHANGELOG.md
Dependencies base (>=4.8 && <4.11), ghc-prim (>=0.4 && <0.6), integer-gmp (==1.0.*) [details]
License BSD-3-Clause
Copyright 2016 Claude Heiland-Allen
Author Claude Heiland-Allen
Maintainer claude@mathr.co.uk
Revised Revision 1 made by ClaudeHeilandAllen at Thu Aug 3 20:32:18 UTC 2017
Category Numeric
Home page https://code.mathr.co.uk/hgmp
Source repo head: git clone https://code.mathr.co.uk/hgmp.git
this: git clone https://code.mathr.co.uk/hgmp.git(tag v0.1.0.1)
Uploaded by ClaudeHeilandAllen at Wed Aug 10 04:39:21 UTC 2016
Distributions LTSHaskell:0.1.1, NixOS:0.1.1, Stackage:0.1.1
Downloads 847 total (31 in the last 30 days)
Rating 2.25 (votes: 2) [estimated by rule of succession]
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Status Docs available [build log]
Last success reported on 2016-08-10 [all 1 reports]
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Readme for hgmp-0.1.0.1

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hgmp

Haskell interface to GMP. Contains type definitions and marshalling functions, to be able to write FFI bindings using Haskell's Integer and Rational types. Function bindings may come in a future version.

A simple example illustrating binding to GMP's next probable-prime function:

{-# LANGUAGE ForeignFunctionInterface #-}

import Foreign.Ptr (Ptr(..))
import Numeric.GMP.Types (MPZ)
import Numeric.GMP.Utils (withInInteger, withOutInteger_)
import System.IO.Unsafe (unsafePerformIO)

foreign import ccall safe "__gmpz_nextprime"
  mpz_nextprime :: Ptr MPZ -> Ptr MPZ -> IO ()

nextPrime :: Integer -> Integer
nextPrime n =
  unsafePerformIO $
    withOutInteger_ $ \rop ->
      withInInteger n $ \op ->
        mpz_nextprime rop op