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Re: srfi-1 take and drop seriously broken


From: Eli Zaretskii
Subject: Re: srfi-1 take and drop seriously broken
Date: Sun, 20 Nov 2016 05:32:25 +0200

> Date: Sat, 19 Nov 2016 22:52:12 +0100
> From: <address@hidden>
> 
> 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:
> 
>   address@hidden:~$ 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.



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