From: Jean Abou Samra <jean@abou-samra.fr>
To: Rui Zhang <zrui16@hotmail.com>
Cc: 62583-done@debbugs.gnu.org
Subject: bug#62583: Guile 3.0.9 crashes when calling set-car! on the last node of '(...)
Date: Sat, 1 Apr 2023 08:46:04 +0200 [thread overview]
Message-ID: <A0944F9F-BAF8-413D-A7A8-689C3D85F1A9@abou-samra.fr> (raw)
In-Reply-To: <KL1PR01MB49105C4B939EC38215BB6D03DC8C9@KL1PR01MB4910.apcprd01.prod.exchangelabs.com>
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> Le 1 avr. 2023 à 08:22, Rui Zhang <zrui16@hotmail.com> a écrit :
>
> Reproduction:
>
> (let ((xs '(1)))
> (set-car! xs 0))
>
> or
>
> (let ((xs '(1 2)))
> (set-car! (cdr xs) 0))
>
> Guile will segfault executing this code, and only when set-car! is called on the last node. I believe the expectation is that it does not segfault and xs will be modified to (0) or (1 0) in these two examples.
>
> If I use (list 1) instead of '(1), Guile does not seem to segfault. Maybe '(1) is constructed differently?
>
>
> $ guile --version
> guile (GNU Guile) 3.0.9
> Copyright (C) 2023 Free Software Foundation, Inc.
>
> License LGPLv3+: GNU LGPL 3 or later <http://gnu.org/licenses/lgpl.html>.
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
>
> $ ./config.guess
> x86_64-pc-linux-gnu
A duplicate of https://debbugs.gnu.org/cgi/bugreport.cgi?bug=16060
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prev parent reply other threads:[~2023-04-01 6:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-01 0:12 bug#62583: Guile 3.0.9 crashes when calling set-car! on the last node of '(...) Rui Zhang
2023-04-01 6:46 ` Jean Abou Samra [this message]
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