What version of clojure are you guys using, just to understand this a little better? I think apply was given a boost in 1.3 or 1.4--I'm a relative newbie, myself.
Wes On Sun, Oct 7, 2012 at 10:56 PM, Ben Wolfson <wolf...@gmail.com> wrote: > On Sun, Oct 7, 2012 at 3:53 PM, Alan Malloy <a...@malloys.org> wrote: > > This is nonsense. If s is fixed-size at compile-time, you would never use > > apply to begin with. Why bother with (applyn 10 + [1 2 3 4 5 6 7 8 9 10 > ]) > > when you could just write (+ 1 2 3 4 5 6 7 8 9 10)? > > Why bother to write (+ 1 2 3 4 5 6 7 8 9 10) when you could just write 55? > > In order to write (+ 1 2 3 4 5 6 7 ...) you need more than just the > length of the list, you need to know its contents as well. > > (let [s (take 10 (infinite-stream-of-random-integers))] (applyn 10 + s)) > > will work right---you know the length of s---but you're not going to > be able to just directly apply +. > > I'm skeptical for a different reason: > > user=> (let[t(fn[](apply + '(1 2 3 4 5 6 7 8 9 10)))] > (time(dotimes [_ 1000000] (t)))) > "Elapsed time: 1736.91518 msecs" > nil > user=> (let[t(fn[](applyn 10 + '(1 2 3 4 5 6 7 8 9 10)))] > (time(dotimes [_ 1000000] (t)))) > "Elapsed time: 2375.503756 msecs" > nil > > -- > Ben Wolfson > "Human kind has used its intelligence to vary the flavour of drinks, > which may be sweet, aromatic, fermented or spirit-based. ... Family > and social life also offer numerous other occasions to consume drinks > for pleasure." [Larousse, "Drink" entry] > > -- > 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 > -- 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
