GNU bug report logs - #55481
mostly nonrecursive printing [PATCH]

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Package: emacs;

Reported by: Mattias Engdegård <mattiase <at> acm.org>

Date: Tue, 17 May 2022 14:00:02 UTC

Severity: normal

Tags: patch

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

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Message #8 received at 55481 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Mattias Engdegård <mattiase <at> acm.org>
Cc: 55481 <at> debbugs.gnu.org
Subject: Re: bug#55481: mostly nonrecursive printing [PATCH]
Date: Tue, 17 May 2022 18:48:09 +0300

> From: Mattias Engdegård <mattiase <at> acm.org>
> Date: Tue, 17 May 2022 15:59:16 +0200
> 
> Printing deeply nested values typically crashes Emacs by running out of C stack since the printer uses C recursion to traverse nested data structures. This is a long-standing problem that keeps turning up; see bug#52753 for one example.
> 
> The attached patch eliminates most of the recursion: conses, vectors, records, hash tables and char tables are now traversed without consuming C stack. This should cover the vast majority of objects that form deep structures.

Thanks, this is an important improvement, IMO.
This bug report was last modified 3 years and 6 days ago.

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