In Common LISP, you can modify anything, anywhere. In the ML family of language, there are refs, but, if they have the same name, they do not share the concept. They are closer of Clojure's atoms. There is no notion of transactions.
Haskell and a few other languages have Software Transactional Memories and so construct like refs. That's one of the (many many) great things in Clojure: a very complete and consistant handling of concurency, with different constructs for different kind of concurrency states. -- 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