http://gist.github.com/484747
- - - My sad little program has a number of issues and I would welcome suggestions on any aspect of it. I come from an imperative programming background and clojure is my first experience with a functional or lisp language. I'd like to take a list of things (really, a vector) and randomly add items of that list to another list. I chose to work with vectors because clojure is efficient at adding things their ends and because I can address their consistent ordering with an index. Issues: 1) Idiomatic: please point out anything that looks generally awkward or otherwise less than ideal for clojure (and suggest an alternative) : ) For example, in my loop I rebind symbols to themselves and have received mixed advice on IRC as to whether it's appropriate to do that. 2) Transients: For speed and because I don't care about the intermediate values of the vectors, I'd like to use them. I was able to easily work with the transient vector 'random-ips' but receive an error when trying to wrap the vector 'ordered-ips' in a transient: "Exception in thread "main" java.lang.ClassCastException: clojure.lang.PersistentVector$TransientVector cannot be cast to clojure.lang.IPersistentVector (gen_ips.clj:36)" 3) Overall speed: it's abysmal but I don't blame Clojure. It's either because I'm Doing It Wrong or what I'm doing is simply expensive in a big O notation sort of way. I'm trying to randomly order 1.1 million strings. 4) Clojure side-gripe: I wish it were easier to mix clojure's different 'types': vectors, lazy sequences, etc. It's probably an ignorance thing on my part but, for what I know right now, I find using different macros with all the different return types problematic. - - - Thanks in advance to addressing one or more of these issues! - Ryan -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/clojure?hl=en
