Proposal: Remove Num superclass of Bits

Bas van Dijk v.dijk.bas at
Sat Oct 29 19:30:51 CEST 2011

On 29 October 2011 19:22, Johan Tibell <johan.tibell at> wrote:
> On Sat, Oct 29, 2011 at 9:41 AM, Bas van Dijk <v.dijk.bas at> wrote:
>> On 29 October 2011 18:25, Johan Tibell <johan.tibell at> wrote:
>> > No. Do we know which packages would break? I imagine that downloading
>> > the
>> > hackage tarball and grepping for 'instance Bits' should tell you.
>> Where can this tarball be downloaded?
> "archive of just the latest versions of all the packages (230MB tar file)"

Nice, I will take a look.

>> > Also, does this have any performance impact?
>> Performance should not be affected. After inlining all instances
>> should use the same definitions.
> Good. So none of the current instances use the default* functions?

No, all of them do. But since they previously used the default
implementation, which is the same as the default function, the
performance should be the same.


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