Whoops. My fault. Of course 24 is the correct result. I shouldn't do math at 3 in the morning.
On Sun, Jul 18, 2010 at 6:40 AM, Brisance <cru...@gmail.com> wrote: > Interestingly, the results are different for me. > > ; SLIME 2010-05-01 > user> (def *forty-two* 42) > #'user/*forty-two* > user> (defn impure-add42 [n] (+ n *forty-two*)) > #'user/impure-add42 > user> (impure-add42 1) > 43 > user> (binding [*forty-two* 23] (impure-add42 1)) > 24 > > On Jul 18, 7:14 am, Moritz Ulrich <ulrich.mor...@googlemail.com> > wrote: >> (def *forty-two* 42) >> >> (defn impure-add42 [n] >> (+ n *forty-two*)) >> >> (impure-add42 1) >> => 43 >> >> (binding [*forty-two* 23] >> (impure-add42 1)) >> => 65 >> >> >> >> >> >> On Sun, Jul 18, 2010 at 12:57 AM, Laurent PETIT <laurent.pe...@gmail.com> >> wrote: >> > Hi, >> >> > 2010/7/17 Paul Richards <paul.richa...@gmail.com> >> >> >> The "Programming Clojure" book states: "Functions that use dynamic >> >> bindings are not pure functions.." (P2.0, page 174). >> >> >> I do not understand why this must be the case, can someone explain why? >> >> > Because then the result of the function does not *only* depend on its input >> > arguments. >> >> >> PS. I tried to post this on the discussion page for the book >> >> (http://forums.pragprog.com/forums/91), but I could not register and >> >> login correctly. >> >> >> -- >> >> Paul Richards >> >> @pauldoo >> >> >> -- >> >> 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 >> >> -- >> Moritz Ulrich >> Programmer, Student, Almost normal Guy >> >> http://www.google.com/profiles/ulrich.moritz > > -- > 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 -- Moritz Ulrich Programmer, Student, Almost normal Guy http://www.google.com/profiles/ulrich.moritz -- 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
