Hello,
You maybe can use Integers as bitfield:
bitField := 0 bitAt: 200 put: 1.
executing
bitField bitAt: 200
will return 1.
The only thing to take care is that it # bitAt:put does not change the object
itself, but instead returns a new one.
Marcus
> On 16 Nov 2015, at 17:16, abdelghani ALIDRA <alidran...@yahoo.fr> wrote:
>
> Hi everybody,
>
> I was discussing with Thibault about the performance of some methods defined
> on sets ( actually quite slow for big collections, mainly union: and
> intersection: ) and we were wondering if there is any implementation of some
> BitField-like class to speed up these operations? May be in an external
> project?
>
> Abdelghani
