On Jan 29, 2008 11:28 AM, Mark Fredrickson <[EMAIL PROTECTED]> wrote: > Is it possible to determine at run time the arity of function? I'm > thinking something like > > (arity (lambda (x y z) (* x y z))) > => 3
You can use 'procedure-information': (procedure-information (lambda (x y z) (* x y z))) => (? x y z) where (? x y z) is an s-expression that you can parse. It's of less use when the procedure takes variable arguments, though, and of course it doesn't tell you whether the procedure returns multiple values. Graham _______________________________________________ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
