On Mon, 2005-12-05 at 23:49 +0000, Thomas Chust wrote: > On Mon, 5 Dec 2005, Sunnan wrote: > > > [...] > > I hadn't looked at srfi-31 before. I thought I knew most of the srfis. > > This one was pretty disappointing. > > [...] > > Hmm, most of the time I don't need this type of thing, but if I want to > pass an anonymous callback that is recursive, the rec form comes in quite > handy. I find writing > (letrec ((loop > (lambda (p) > (if (pred? p) (foo p) (loop (bar p)))))) > loop) > much more awkward than > (rec (loop p) (if (pred? p) (foo p) (loop (bar p)))
How about (lambda (p) (let loop ((p p)) (if (pred? p) (foo p) (loop (bar p))))) Yeah, I know, it's slightly more awkward (three more symbols) and if you use it all the time, using rec might be a win, but if you do something all the time there's usually an even more winning way. Thanks for the example (anon callbacks), though. _______________________________________________ Chicken-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/chicken-users
