Re: [Chicken-users] destructive sort! really destructive

[Mario Domenech Goulart]

Hi Claude,

On Sat, 24 May 2014 13:17:33 -0400 (EDT) Claude Marinier <address@hidden> wrote:

> On Sat, 24 May 2014, Lo?c Faure-Lacroix <address@hidden> wrote:
>>
>> I'm not sure if it's how it is supposed to work. I have a list that
>> looks like this:
>>
>> '((23 14 19) (28 9 19) (10 10 19) (16 14 18)
>>  (14 8 18) (25 13 18) (13 13 17) (10 7 17)
>>  (27 12 17) (21 12 16) (10 6 16) (5 11 16)
>>  (25 11 15) (6 5 15) (0 10 15) (3 4 14)
>>  (5 3 13) (23 2 12) (16 1 11) (29 0 10)
>>  (15 8 9) (9 5 9) (4 7 8) (17 6 7)
>>  (17 5 6) (28 3 4) (10 0 4) (7 2 3)
>>  (20 1 2) (11 0 1))
>>
>> When calling this function on this list let say (define a ?)
>>
>> (sort! a (lambda (x y) (< (car x) (car y))))
>> Returns the sorted list and then
>> a is equal to:
>>
>> ((23 14 19) (23 2 12) (25 13 18) (25 11 15) (27 12 17) (28 9 19)
>> (28 3 4) (29 0 10))
>
> Bonjour,
>
> I decided to play with this but it went wrong.
>
>
> First, start 'csi'.
>
>
> address@hidden ~]$ /opt/chicken/bin/csi
>
> CHICKEN
> (c) 2008-2014, The Chicken Team
> (c) 2000-2007, Felix L. Winkelmann
> Version 4.9.0rc1 (rev 3cf1967)
> linux-unix-gnu-x86 [ manyargs dload ptables ]
> compiled 2014-04-17 on hd-t1179cl (Linux)
>
> ; loading /home/claude/.csirc ...
> ; loading /opt/chicken/lib/chicken/7/parley.import.so ...
> ; loading /opt/chicken/lib/chicken/7/chicken.import.so ...
> ; loading /opt/chicken/lib/chicken/7/data-structures.import.so ...
> ; loading /opt/chicken/lib/chicken/7/extras.import.so ...
> ; loading /opt/chicken/lib/chicken/7/ports.import.so ...
> ; loading /opt/chicken/lib/chicken/7/posix.import.so ...
> ; loading /opt/chicken/lib/chicken/7/srfi-1.import.so ...
> ; loading /opt/chicken/lib/chicken/7/srfi-13.import.so ...
> ; loading /opt/chicken/lib/chicken/7/srfi-18.import.so ...
> ; loading /opt/chicken/lib/chicken/7/stty.import.so ...
> ; loading /opt/chicken/lib/chicken/7/srfi-69.import.so ...
> ; loading /opt/chicken/lib/chicken/7/foreign.import.so ...
> ; loading /opt/chicken/lib/chicken/7/foreigners.import.so ...
> ; loading /opt/chicken/lib/chicken/7/parley.so ...
> ; loading /opt/chicken/lib/chicken/7/stty.so ...
>
>
> Define the list.
>
>
> #;1>(define a
> '((23 14 19) (28 9 19) (10 10 19) (16 14 18)
>   (14 8 18) (25 13 18) (13 13 17) (10 7 17)
>   (27 12 17) (21 12 16) (10 6 16) (5 11 16)
>   (25 11 15) (6 5 15) (0 10 15) (3 4 14)
>   (5 3 13) (23 2 12) (16 1 11) (29 0 10)
>   (15 8 9) (9 5 9) (4 7 8) (17 6 7)
>   (17 5 6) (28 3 4) (10 0 4) (7 2 3)
>   (20 1 2) (11 0 1))
> )
>
>
> Display the list.
>
>
> #;2>(display a)
>
>
> This produces an endlessly repeating stream of errors. Capturing it
> was "interesting".
>
>
> Error: (substring) out of range
> 0
> -32
>
>         Call history:
>
>         parley.scm:285: loop
>         parley.scm:284: reverse
>         list->string
>         parley.scm:284: string-split
>         parley.scm:507: read-raw
>         parley.scm:476: call-with-current-continuation
>         parley.scm:478: prompt-loop
>         parley.scm:419: refresh-line
>         parley.scm:140: ##sys#call-with-values
>         parley.scm:141: terminal-size
>         parley.scm:386: -
>         parley.scm:389: -
>         parley.scm:390: floor
>         parley.scm:392: min
>         parley.scm:394: modulo
>         parley.scm:395: substring               <--
> ((23 14 19) (28 9 19) (10 10 19) (16 14 18) (14 8 18) (25 13 18)
> (13 13 17) (10 7 17) (27 12 17) (21 12 16) (10 6 16) (5 11 16)
> (25 11 15) (6 5 15) (0 10 15) (3 4 14) (5 3 13) (23 2 12) (16 1 11)
> (29 0 10) (15 8 9) (9 5 9) (4 7 8) (17 6 7) (17 5 6) (28 3 4)
> (10 0 4) (7 2 3) (20 1 2) (11 0 1))
>
>
> Version 4.8.0.5 does the same.
>
>
> Compiling is OK. Here is the source file:
>
> (define a
> '((23 14 19) (28 9 19) (10 10 19) (16 14 18)
>   (14 8 18) (25 13 18) (13 13 17) (10 7 17)
>   (27 12 17) (21 12 16) (10 6 16) (5 11 16)
>   (25 11 15) (6 5 15) (0 10 15) (3 4 14)
>   (5 3 13) (23 2 12) (16 1 11) (29 0 10)
>   (15 8 9) (9 5 9) (4 7 8) (17 6 7)
>   (17 5 6) (28 3 4) (10 0 4) (7 2 3)
>   (20 1 2) (11 0 1))
> )
>
> (display a)
> (newline)
>
>
> Compile and run.
>
>
> address@hidden scheme]$ csc -o test list-of-triplets.scm
> address@hidden scheme]$ ./test
> ((23 14 19) (28 9 19) (10 10 19) (16 14 18) (14 8 18) (25 13 18)
> (13 13 17) (10 7 17) (27 12 17) (21 12 16) (10 6 16) (5 11 16)
> (25 11 15) (6 5 15) (0 10 15) (3 4 14) (5 3 13) (23 2 12) (16 1 11)
> (29 0 10) (15 8 9) (9 5 9) (4 7 8) (17 6 7) (17 5 6) (28 3 4)
> (10 0 4) (7 2 3) (20 1 2) (11 0 1))
>
>
> OS is
>
> Linux hibou 3.2.0-4-686-pae #1 SMP Debian 3.2.57-3+deb7u1 i686 GNU/Linux
>
>
> Something is broken. Is it my build or Chicken itself?

I suppose it's something related to parley.  Can you try to run the
interactive repl as "csi -n"?  Alternatively, you can run it
non-interactively: csi -s list-of-triplets.scm

Best wishes.
Mario
-- 
http://parenteses.org/mario