GNU bug report logs - #48837
Interaction between completion-moide and cc-mode new in 27.2

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From: "John C. Ruttenberg" <ruttenberg <at> reservoir.com>
To: Alan Mackenzie <acm <at> muc.de>
Cc: 48837-done <at> debbugs.gnu.org
Subject: bug#48837: Interaction between completion-moide and cc-mode new in 27.2
Date: Sun, 27 Jun 2021 09:58:38 -0400

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My mistake on the "submission".  I sent the email to sourceforge.  But I am
glad the bug has been fixed.

On Sun, Jun 27, 2021 at 9:36 AM Alan Mackenzie <acm <at> muc.de> wrote:

> Hello, John.
>
> On Sat, Jun 26, 2021 at 16:17:41 -0400, John C. Ruttenberg wrote:
> > Thanks.  The patch succeeded and the bug seems to be fixed.
>
> Thanks!  I've committed the patch to the emacs-27 branch at savannah,
> from where it should reach the master branch in a few days, and to stand
> alone CC Mode and XEmacs.  I'm closing the bug with this post.
>
> > I just submitted another bug but it says it needs moderation.  Did you
> > see it?
>
> By submitted, do you mean to bug-gnu-emacs <at> gnu.org?  If so, the "needs
> moderation" sounds very strange indeed.  I don't know why this has
> happened, and I didn't see your new bug last time I looked at the online
> list (this morning, European time).  Can I suggest you try submitting it
> again?
>
> > Here is the text of the email, if not:
>
> > Here is my C++ file:
>
> > class __attribute__((packed)) y : z {
>
> > Typing a new line after the  "{" indents to under the "z":
>
> > class __attribute__((packed)) y : z {
> >                                   ^ here
>
> > I think it should indent the same as if "__attribute__((packed))" were
> not
> > present.
>
> This bug seems already to be fixed in the upcoming Emacs 28.1 and the
> head of the standalone CC Mode.  The bug is present in Emacs 27.2.  With
> a bit of bisection, I should be able to find the patch which fixed it.
> With any luck, I'll be able to send you a patch for Emacs 27.2.
>
> > This appears to be fragile in surprising ways.  If I spell
> "__attribute__"
> > wrong (like __attribute), it does not reproduce.
>
> > It also does not reproduce if the source file is:
>
> > {
> >   class __attribute__((packed)) y : z {
>
> > But if the source file is:
>
> > {
> >   class __attribute__((packed)) y : z {
>
> > then it does reproduce.
>
> [ .... ]
>
> --
> Alan Mackenzie (Nuremberg, Germany).
>

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