On Wed, Dec 1, 2010 at 8:38 AM, Alex Osborne <a...@meshy.org> wrote: >> I expect the compare it does uses .equals rather than ==? > > Not even that, it's a CPU instruction so it'll be identical?.
The identical? predicate and the Java == operator do the same thing. Also, what's a CPU instruction? Everything we've been discussing is in Java and/or Clojure, so it'd be a JVM instruction. I think the .compareAndSet method call in the swap method in the Java code for Clojure atoms was the specific case under discussion. The snippet you posted didn't make it clear what method that actually was; it was invoked on an object held by a reference named "state" but the variable's declaration wasn't in the snippet so its type is unknown to me. My guess would be something in the java.util.concurrent package. -- 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
