That is an excellent point, and the macro is actually a very nice approach, thanks for the help.
On Apr 18, 1:07 am, Sean Corfield <seancorfi...@gmail.com> wrote: > On Tue, Apr 17, 2012 at 9:16 PM, Dmitri <dmitri.sotni...@gmail.com> wrote: > > (map? foo bar baz) would return bar if foo is a map and baz otherwise. > > To elaborate on Alan's response, consider: > > (if (map? foo) (/ bar 0) baz) > > If map? were 'merely' a variadic function, (map? foo (/ bar 0) baz) > would fail because (/ bar 0) would be evaluated and then passed as an > argument, along with foo and baz. > > So, no, the simple answer is that you can't just make the test > functions variadic and get the same behavior as an if form (hence > Alan's suggestion of a macro-generating macro to create new macros for > the forms you want). > > (Apologies if I'm laboring the point here) > -- > Sean A Corfield -- (904) 302-SEAN > An Architect's View --http://corfield.org/ > World Singles, LLC. --http://worldsingles.com/ > > "Perfection is the enemy of the good." > -- Gustave Flaubert, French realist novelist (1821-1880) -- 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
