Proposal: Add Data.Bits.popCount
rrnewton at gmail.com
Thu Aug 18 15:13:00 CEST 2011
> I'd prefer to not wait with adding popCount until this is done, unless
> > someone takes it on them to add the others before GHC 7.4.
> No, don't wait. While it would be nice to have the others equally soon,
> it's better to have one goody than none.
How about making the API change in one go -- i.e. add the default
implementations for all of them, which is easy. Then people can come along
and do the GHC work necessary to make the others efficient later.
In fact, changing the API could be a "forcing function" to make the others
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