Yes but the contract of subvec is that it returns a "persistent vector" and the resulting data structure returns "true" under the "vector?" predicate. I know that subvec returns a different type because I've looked at the Java source code but that's a leaky abstraction.
On Apr 30, 10:57 am, Ken Wesson <kwess...@gmail.com> wrote: > On Sat, Apr 30, 2011 at 11:27 AM, Armando Blancas > > <armando_blan...@yahoo.com> wrote: > > On Apr 29, 10:54 am, Nathan Sorenson <n...@sfu.ca> wrote: > >> (transient (subvec [1 2 3 4 5] 0 2)) fails with a class cast > >> exception. Is this expected/unavoidable? How do I know whether the > >> vectors I'm passed are regular vectors or come via subvec? > > >> I'm assuming I lose all the performance benefits of subvec if I > >> defensively pour all vectors into a new vector before calling > >> transient? > > >> I'm on clojure 1.3.0-alpha4 > > > Check this out:http://clojure.org/Transients > > There is no mention of subvec on that page. -- 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
