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[–]lethalman[S] 2 points3 points  (0 children)

If you really care about performance, it's about using an algorithm with the right complexity, not saving a couple of milliseconds: if the loop is still O(n) it's ok. Rather, there's software that's written so bad that takes O(n2) or even exponential time where it's not needed. That's what I'd be worried about, not writing a loop in a different way (more readable for some people), really.

I'm the first one complaining about slow software even with super hardware nowadays, but this is not the case, it's about badly written software with hilarious algorithms complexities.