Welcome to Racket v6.1.1. > (require srfi/42)
> (first-ec #f (: n 2 8) (if (odd? n)) n) stdin::153: :until: expected <generator> in in: (if (odd? n)) context...: C:\Program Files\Racket\share\pkgs\srfi-lib\srfi\42\expansion.scm:68:2: gener ator->loop C:\Program Files\Racket\share\pkgs\srfi-lib\srfi\42\expansion.scm:127:7 C:\Program Files\Racket\collects\racket\private\misc.rkt:87:7 > (last-ec #f (: n 2 8) (if (odd? n)) n) 7 > (list-ec (: n 2 8) (if (odd? n)) n) '(3 5 7) _________________________ Racket Developers list: http://lists.racket-lang.org/dev
