Proposal: Remove Num superclass of Bits

[Bas van Dijk]

On 29 October 2011 19:22, Johan Tibell <johan.tibell at gmail.com> wrote:
> On Sat, Oct 29, 2011 at 9:41 AM, Bas van Dijk <v.dijk.bas at gmail.com> wrote:
>>
>> On 29 October 2011 18:25, Johan Tibell <johan.tibell at gmail.com> 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?
>
> http://hackage.haskell.org/packages/hackage.html
>
> "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.

Bas