[Haskell-cafe] Directed rounding in haskell ?
claude at mathr.co.uk
Fri Apr 11 12:03:45 UTC 2014
On 11/04/14 12:16, Dominik Peteler wrote:
> On Thu 2014-04-10 16:15, Alp Mestanogullari wrote:
>> Maybe these packages could be relevant/useful:
>> - https://github.com/ekmett/rounded
> Very interesting, thank you.
> How does it compare to hmpfr ?
>  http://hackage.haskell.org/package/hmpfr
'hmpfr' doesn't work safely (random crashes occur) unless you re-compile
a custom ghc without 'integer-gmp', and the alternative 'integer-simple'
is very slow in comparison.
'rounded' works around the problem (GHC's GC moving GMP things behind
MPFR's back) but requires a patched libmpfr (which it bundles), though
it is still not quite ready for general use (a few remaining issues to
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