Do you mean (take "nonlist" 0)? That's '() in regular Racket, I think to accommodate improper lists.
C:\Users\Administrator\git\exp\plt>Racket.exe Welcome to Racket v5.0.99.7. > (take "nonlist" 0) '() Robby On Thu, Jan 27, 2011 at 3:32 PM, Stephen Chang <stch...@ccs.neu.edu> wrote: > What should be the result of (take 0 "nonlist") > > In the spirit of this bug report, I think it should be an error > http://bugs.racket-lang.org/query/?cmd=view&pr=11458 > > But right now it evaluates to the empty list. > > > > > On Wed, Jan 26, 2011 at 6:43 PM, Stephen Chang <stch...@ccs.neu.edu> wrote: >> Oh sorry, didnt read carefully. I now see that it wasnt my push you >> were replying to. >> >> >> >> On Wed, Jan 26, 2011 at 6:42 PM, Stephen Chang <stch...@ccs.neu.edu> wrote: >>> That wasnt the bug that I was fixing. >>> >>> >>> >>> On Wed, Jan 26, 2011 at 5:58 PM, Matthew Flatt <mfl...@cs.utah.edu> wrote: >>>> At Wed, 26 Jan 2011 17:07:32 -0500, e...@racket-lang.org wrote: >>>>> + (let ([n0 (! n)]) >>>>> + (unless (exact-nonnegative-integer? n) >>>>> + (raise-type-error 'take "non-negative exact integer" 0 n l)) >>>> >>>> Still committing changes with no tests. >>>> >>>> Still broken: >>>> >>>> > (list-ref (take (car (list 1)) (list 2)) 0) >>>> take: expects type <non-negative exact integer> as 1st argument, given: >>>> #<promise!1>; other arguments were: '(2) >>>> >>>> _________________________________________________ >>>> For list-related administrative tasks: >>>> http://lists.racket-lang.org/listinfo/dev >>>> >>> >> > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/dev > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
