On Thu, Dec 6, 2018 at 8:05 AM 'Paulo Matos' via Racket Users
<racket-users@googlegroups.com> wrote:
>
>
>
> On 05/12/2018 11:55, Tony Garnock-Jones wrote:
> > I suspect it will be slow because sets are generics, and generics are
> > slow.
>
> I am curious now. How slow? Why? Do you have any data backing this up?
> Generics are very useful, I would be very disappointed if they are
> indeed very slow.

A quick test suggests that hash-has-key? is about twice as fast as
set-member? on a 10-element set of integers.

Sam

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