On 2010 Apr 28, at 5:14 PM, Meikel Brandmeyer wrote:
If you have a map or a set looking up a key is fast. So contains? is
fast (read O(1) resp. something like O(log32 N)). seq-contains? does
a linear search through a sequence. That is O(N). Protocols cannot
change this.

How is having an optimized version of seq-contains? for sets/maps any different from what Stuart showed in his video, where reduce can have a specialization that is faster on some types?

-Doug

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