RealFrac methods for Double and Float

Tyson Whitehead twhitehead at
Tue Oct 12 11:02:30 EDT 2010

On October 11, 2010 15:12:12 Daniel Fischer wrote:
> GHC's new code generator does some incredible stuff with the code for
> Float's RealFrac instance, properFraction has become about _seven times_
> faster, floor and ceiling about _thirteen times_ and round about _10.5
> times_ (values for my box, the exact numbers will differ, but the tendency
> will be the same).

Out of curiosity, by new code generator, are you meaning just the stock GHC 7 
code path or are you meaning the new now available but disabled by default 
unless you use some flag (which I forget right now) code generation path.

Cheers!  -Tyson
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