GNU bug report logs - #24914
24.5; isearch-regexp: wrong error message

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Package: emacs;

Reported by: Drew Adams <drew.adams <at> oracle.com>

Date: Wed, 9 Nov 2016 22:31:01 UTC

Severity: minor

Tags: confirmed, fixed, patch

Found in versions 24.5, 25.2

Fixed in version 27.1

Done: Noam Postavsky <npostavs <at> users.sourceforge.net>

Bug is archived. No further changes may be made.

Full log

Message #30 received at 24914 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Noam Postavsky <npostavs <at> users.sourceforge.net>
Cc: drew.adams <at> oracle.com, 24914 <at> debbugs.gnu.org
Subject: Re: bug#24914: 24.5; isearch-regexp: wrong error message
Date: Mon, 04 Dec 2017 17:18:08 +0200

> From: Noam Postavsky <npostavs <at> users.sourceforge.net>
> Date: Mon, 04 Dec 2017 01:27:27 -0500
> Cc: 24914 <at> debbugs.gnu.org
> 
> Drew Adams <drew.adams <at> oracle.com> writes:
> 
> >> It's not a limit in Lisp, but in regex.c.
> >
> > We can't use something larger there?
> 
> Hmm, right, actually I see in regex.h:
> 
>     /* If sizeof(int) == 2, then ((1 << 15) - 1) overflows.  */
>     #define RE_DUP_MAX (0x7fff)
> 
> Does Emacs even support 16 bit platforms?

Emacs never did (the MS-DOS port of Emacs runs in i386 32-bit
protected mode on top of a 16-bit OS).  But regex.c did, at some very
distant past, to support the 16-bit MS compiler, or at least it tried
to.
This bug report was last modified 7 years and 118 days ago.

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