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Re: Any thoughs on Iterator prefetching?by pKai (Priest) |
on Jun 25, 2009 at 13:42 UTC ( [id://774717]=note: print w/replies, xml ) | Need Help?? |
A wise man once said: "Prediction is hard, especially about the future." A look into the source of Iterator shows, that it is implemented as you described (one value look ahead internally). Doing it this way seems questionable. Update: It seems that he needs the look ahead to be able to return undef as a valid value telling it apart from Iterator-exhausted. So maybe you are better of with Iterator::Simple which cannot yield undef, but will also not look ahead.
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