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Yeah right, a few micro-seconds difference.(and space isn't quite a big problem these days though !)



Thanks !

Completely agree ! And regarding the multi-threading part, I thought we could split up the work to threads :S




This can do the job I suppose..

next = next + last;
last = next - last;

That piece of code would certainly do the job, but it can be made more efficient by implementing recursion also you can fix the swap part to a 2 variable one. A little bit of threading should make it...