> Date: Sat, 19 Nov 2016 22:52:12 +0100 > From: <to...@tuxteam.de> > > On Sat, Nov 19, 2016 at 10:18:21PM +0100, Jan Nieuwenhuizen wrote: > > Jan Synáček writes: > > > > > scheme@(guile-user)> ,use (srfi srfi-1) > > > scheme@(guile-user)> (take (list 1 2 3) 4) > > > ERROR: In procedure list-head: > > > ERROR: In procedure list-head: Wrong type argument in position 1 > > > (expecting pair): () > > > > That's expected. > > > > > scheme@(guile-user) [1]> (drop (list 1 2 3) 4) > > > ERROR: In procedure list-tail: > > > ERROR: In procedure list-tail: Wrong type argument in position 1 > > > (expecting pair): () > > > > That too. > > > > Hm. Jan's example should work, nevertheless. And it does work for me: > > tomas@rasputin:~$ guile > GNU Guile 2.0.11.133-d680 > Copyright (C) 1995-2014 Free Software Foundation, Inc. > > Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'. > This program is free software, and you are welcome to redistribute it > under certain conditions; type `,show c' for details. > > Enter `,help' for help. > scheme@(guile-user)> (use-modules (srfi srfi-1)) > scheme@(guile-user)> (take (list 1 2 3 4) 4) > $1 = (1 2 3 4)
Your example has 4 members in the list, while the original one had only 3.