In the particular bit of code I'm working on, I have a collection of vectors. The last one is always [] and no others are empty. Using `identical?` instead of `seq` to detect that last vector shaved quite a bit of time in my loop.
This brought to mind the general case of detecting emptiness. The current practice of using `seq` to check for non-emptiness wastes resources. This limits the use of nice abstractions like `reduce` in performance critical environments where a sentinel could be used. Not everyone will be able to use a sentinel value to solve their particular problem. What can be done to make `empty` faster? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
