On 2014-04-02 20:53:58 +0200, Alejandro Zamora Fonseca wrote: > ¿How can I create generic-functions in Racket? > > Something like > this samples in CL: > > (defmethod dup ((a string)) > (concatenate 'string a a)) > > (defmethod dup ((a integer)) > (list a a))
See the docs for the `racket/generic` library: http://docs.racket-lang.org/reference/struct-generics.html In particular, if you want functions with specialized behavior on strings and integers, you'll need to use the #:defaults clause because Racket does not allow a "monkeypatching"-like approach to overriding behavior. Cheers, Asumu ____________________ Racket Users list: http://lists.racket-lang.org/users
