On Mon, Oct 20, 2008 at 1:03 PM, Parth Malwankar <[EMAIL PROTECTED]>wrote:
> > On Oct 20, 3:51 pm, "Fredrik Appelberg" <[EMAIL PROTECTED]> > wrote: > > Hi all, > > > > The CL feature for handling multiple return values from a function come > in > > really handy sometimes and make for cleaner APIs. For example, the ROUND > > function returns the integer part of a float as the regular value (as > this > > is what you want most of the time), but optionally also returns the > floating > > point part in case you want it. > > > > I haven't found anything like MULTIPLE-VALUE-BIND in Clojure. Are there > any > > plans of incorporating any kind of mechanism for multiple return values? > > Hi Fredrik, > > Similar results can be accomplished using vectors and > destructuring in Clojure. > > user=> (defn foo [] [:one :two :three]) > #=(var user/foo) > user=> (let [[a b c] (foo)] (println b)) > :two > nil > user=> > > The destructuring capabilities of "let" are quite nice. > A bunch of examples are available in the let reference: > http://clojure.org/special_forms > I agree that Clojure's let form goes a long way towards making multiple return values easy to handle. What's missing, though, is the ability to return a single value or multiple values depending on the context in which the function was called. I.e, if the call happens enclosed in MULTIPLE-VALUE-BIND, I get all the returned values, otherwise I get a single one. Anyway, this is a really nifty feature in CL, but it might not be necessary in Clojure as its 'let' form is more potent. Cheers, -- Fredrik ============================================== What am I up to? http://twitter.com/appelberg --~--~---------~--~----~------------~-------~--~----~ 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 To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
