cc-mode-help — Bug reports, feature requests, and general talk about CC Mode.

Re: Wrong version number, oudated "upstream", dead link to GNU Indent and outdated manual

[Alan M. <ac...@mu...>]

Hello, Ana.

On Thu, Oct 30, 2025 at 02:00:53 +0000, ana--- via CC-Mode-help wrote:
> Heya, cc-mode.el says the current cc-mode version is 5.33.1, whereas
> cc-defs.el says it is 5.35.2

Thanks.  I wasn't aware of the 5.33.1 in cc-mode.el.  I didn't add it,
and the person who did didn't tell me about it.  I'll fix that.

> Also, the documentation says to go to https://www.nongnu.org/cc-mode
> in order to update to a newer version, but the code available over
> there isn't up to date with the state of cc-mode in the emacs repo.

Standalone CC Mode is kept compatible with older Emacsen and also
XEmacs.  So it lacks some of the more modern features which have been
introduced into Emacs recently.

They have different version numbers, so that when a bug is reported, I
know in which flavour of CC Mode the bug has arisen.

Otherwise, the CC Mode is at the same state in Emacs and standalone.

> Additionally, the nongnu manual provides an incorrect link for gnu
> Indent.

Thanks for pointing that out, I've fixed it.  For a long time, there was
no online manual for GNU indent, but there is now.

> Lastly, "class-field-cont" was added 7 months ago but the manual on
> gnu.org hasn't been updated since february (8 months ago), it makes it
> harder to discover this symbol.

I'm not sure what you mean by "gnu.org".  Both the Emacs repository
(master branch) and the CC Mode repository were updated in cc-mode.texi
last March when the change to the .el files was committed.

Could it be there's a copy of cc-mode.info on https://www.gnu.org
somewhere that I don't know about?

> Have a great day ^v^

Thanks, yourself too.

-- 
Alan Mackenzie (Nuremberg, Germany).

Wrong version number, oudated "upstream", dead link to GNU Indent and outdated manual

[<an...@ki...>]

Heya, cc-mode.el says the current cc-mode version is 5.33.1, whereas  cc-defs.el says it is 5.35.2

Also, the documentation says to go to https://www.nongnu.org/cc-mode in order to update to a newer version, but the code available over there isn't up to date with the state of cc-mode in the emacs repo.

Additionally, the nongnu manual provides an incorrect link for gnu Indent.

Lastly, "class-field-cont" was added 7 months ago but the manual on gnu.org hasn't been updated since february (8 months ago), it makes it harder to discover this symbol.

Have a great day ^v^

bug#19867: c++-mode indentation issues with C++1x initializer lists

[Mattias E. <mat...@gm...>]

30 apr. 2025 kl. 20.58 skrev Alan Mackenzie <ac...@mu...>:

> DONE.

Thank you!

Re: C23 support in CC Mode.

[Alan M. <ac...@mu...>]

Hello, Arsen.

As half-promised, I've committed a large CC Mode patch which is intended
to cover C23.  It is now in the Emacs master branch at savannah.

On Mon, Dec 23, 2024 at 11:19:37 +0100, Arsen Arsenović wrote:
> Hi Alan,

> Alan Mackenzie <ac...@mu...> writes:

[ .... ]

> >> > BTW, C has recently gained auto type deduction similar to C++

> > Yes.  What is the world coming to?  ;-)

> >> Seems that we forgot about this one!  Whoops.

> >> Could I ask for this one being applied too?

> > Certainly!  There are actually a few new things in C23 I need to attend
> > to.

[ .... ]

> > There's numbers like 1'000'000, for example.  That's already been
> > implemented for C++ Mode, so shouldn't be much trouble, but I need to
> > get down to this and do it systematically.  So give me just a little
> > time here, please.

> No worries!  I didn't mean to hurry you along, sorry!

If you could find time to download the latest master and give the C23
features a run through, that would be great.

Thanks!

> -- 
> Arsen Arsenović

-- 
Alan Mackenzie (Nuremberg, Germany).

bug#19867: c++-mode indentation issues with C++1x initializer lists

[Alan M. <ac...@mu...>]

Hello again, Mattias.

On Mon, Apr 21, 2025 at 20:35:22 +0000, Alan Mackenzie wrote:
> On Thu, Apr 17, 2025 at 15:42:59 +0200, Mattias Engdegård wrote:
> > Thank you for fixing this. A minor oversight in the committed patch, in cc-align.el:

> >  351        (skip-syntax-backward " \t([{" (c-point 'boi))

> > This call should probably use `skip-char-backward`, because `\t`, `[`, and `{` aren't syntax chars.
> > It currently works by accident because of the ` ` and `(` syntax classes.

> Thanks for spotting this and telling me about it.  I'll get around to
> fixing it in the next few days.

DONE.

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: bug#77969: [PATCH] Add buttons to manuals in some commentary sections

[Eli Z. <el...@gn...>]

> From: Morgan Smith <Mor...@ou...>
> Date: Mon, 21 Apr 2025 13:54:47 -0400
> 
> Tags: patch
> 
> This patch will affect how a lot of packages get presented to the user.
> 
> Run `M-x package-list-packages'.
> 
> Now go down to 'use-package' and press the button (RET) to pull up the
> package summary.
> 
> At the bottom of that summary it says "See the `use-package' info manual
> for more information.".  The "`use-package'" bit is a button will take
> you to a Help buffer describing the macro.  This is not ideal as the
> sentence is talking about the Info manual.
> 
> After my change the sentence will change too "See Info node
> `(use-package)' for more information." where the "`(use-package)'" part
> is a button that takes you to the info manual.

If we want something like this at the beginning of each Lisp package,
we need to augment our conventions and tips to say that.

bug#19867: c++-mode indentation issues with C++1x initializer lists

[Alan M. <ac...@mu...>]

Hello, Mattias.

On Thu, Apr 17, 2025 at 15:42:59 +0200, Mattias Engdegård wrote:
> Thank you for fixing this. A minor oversight in the committed patch, in cc-align.el:

>  351        (skip-syntax-backward " \t([{" (c-point 'boi))

> This call should probably use `skip-char-backward`, because `\t`, `[`, and `{` aren't syntax chars.
> It currently works by accident because of the ` ` and `(` syntax classes.

Thanks for spotting this and telling me about it.  I'll get around to
fixing it in the next few days.

-- 
Alan Mackenzie (Nuremberg, Germany).

bug#77969: [PATCH] Add buttons to manuals in some commentary sections

[Morgan S. <Mor...@ou...>]

Tags: patch

This patch will affect how a lot of packages get presented to the user.

Run `M-x package-list-packages'.

Now go down to 'use-package' and press the button (RET) to pull up the
package summary.

At the bottom of that summary it says "See the `use-package' info manual
for more information.".  The "`use-package'" bit is a button will take
you to a Help buffer describing the macro.  This is not ideal as the
sentence is talking about the Info manual.

After my change the sentence will change too "See Info node
`(use-package)' for more information." where the "`(use-package)'" part
is a button that takes you to the info manual.

bug#19867: c++-mode indentation issues with C++1x initializer lists

[Mattias E. <mat...@gm...>]

Thank you for fixing this. A minor oversight in the committed patch, in cc-align.el:

 351        (skip-syntax-backward " \t([{" (c-point 'boi))

This call should probably use `skip-char-backward`, because `\t`, `[`, and `{` aren't syntax chars.
It currently works by accident because of the ` ` and `(` syntax classes.

bug#19867: c++-mode indentation issues with C++1x initializer lists

[Stefan K. <ste...@gm...>]

Alan Mackenzie <ac...@mu...> writes:

> I've just committed a fix (a ~700 line patch ;-), so I think this bug is
> finally solved.

Thank you!

bug#19867: c++-mode indentation issues with C++1x initializer lists

[Alan M. <ac...@mu...>]

Hello, Stefan.

On Tue, Mar 11, 2025 at 16:23:13 -0400, Stefan Kangas wrote:
> Alan Mackenzie <ac...@mu...> writes:

> > Yes, I'll do this.  Sorry I never replied to your post in 2020.  I
> > started looking at the bug then, but somehow didn't get very far with it.
> > Maybe it was because there were so many individual glitches in the
> > report.  Thanks for distilling the cases which still remain unfixed.

> Thanks!

I've just committed a fix (a ~700 line patch ;-), so I think this bug is
finally solved.

I'm closing the bug with this post.

-- 
Alan Mackenzie (Nuremberg, Germany).

bug#19867: c++-mode indentation issues with C++1x initializer lists

[Alan M. <ac...@mu...>]

Hello, Stefan.

On Tue, Mar 11, 2025 at 09:54:20 -0700, Stefan Kangas wrote:
> Stefan Kangas <ste...@gm...> writes:

> > Simon <tur...@gm...> writes:

> >> Initializer lists use curly braces, but their contents do not indent properly with emacs' c++-mode.
> >> In short, one may use an initializer list to declare and initialize a vector of integers as such:
> >>   std::vector<int> Foo( { 1, 2, 3, 4, 5 } );

> >> Problems arise when the elements of the list span on multiple line and it gets even worse when the elements are lambda-expressions
> >> and nested initializer lists.
> >> The following code illustrate most cases and related situations.  The code below compiles without error or warning with gcc 4.8.3.

> > I had a look at the fairly long example provided here, and AFAICT, the
> > indentation is incorrect in the below cases (trimmed down from the
> > original).  Some of the examples of incorrect indentation were already
> > fixed.

> > Alan, could you perhaps take a look at this and see if this is something
> > that is fixable?  Thanks in advance.

> Alan, any chance you could look into the below cases?  Thanks in advance.

Yes, I'll do this.  Sorry I never replied to your post in 2020.  I
started looking at the bug then, but somehow didn't get very far with it.
Maybe it was because there were so many individual glitches in the
report.  Thanks for distilling the cases which still remain unfixed.

[ .... ]

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: Java var and final keywords [was: Re: [PATCH] Java assert keyword]

[Arsen A. <ar...@aa...>]

Hi Alan,

Alan Mackenzie <ac...@mu...> writes:

> Hello, Arsen.
>
> On Thu, Jan 02, 2025 at 21:09:26 +0100, Arsen Arsenović wrote:
>> Hi Alan,
>
>> Happy new year!
>
> And a HNY to yourself, too!
>
>> ... and sorry to bother you so early in 2025!
>
> No bother at all!
>
>> Arsen Arsenović <cc-...@li...> writes:
>
>> > I was referring to the patch, sorry for not being clear:
>
>> >   https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e
>
>> > ... it adds the relatively new 'var' keyword to the Java support.
>
>> Gentle ping on this:
>> https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e
>
>> It should be another easy patch to merge.
>
> Indeed it was, thanks!  I've committed it to all the usual places, and I
> think I've spelt your name correctly this time.

Thanks!  I just rebuilt Emacs and got it.

And yes, the name is fine this time :-)

Have a lovely day!
-- 
Arsen Arsenović

Java var and final keywords [was: Re: [PATCH] Java assert keyword]

[Alan M. <ac...@mu...>]

Hello, Arsen.

On Thu, Jan 02, 2025 at 21:09:26 +0100, Arsen Arsenović wrote:
> Hi Alan,

> Happy new year!

And a HNY to yourself, too!

> ... and sorry to bother you so early in 2025!

No bother at all!

> Arsen Arsenović <cc-...@li...> writes:

> > I was referring to the patch, sorry for not being clear:

> >   https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

> > ... it adds the relatively new 'var' keyword to the Java support.

> Gentle ping on this:
> https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

> It should be another easy patch to merge.

Indeed it was, thanks!  I've committed it to all the usual places, and I
think I've spelt your name correctly this time.

> Thanks in advance.

Thank you for the patch.

> -- 
> Arsen Arsenović

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: [PATCH] Java assert keyword

[Alan M. <ac...@mu...>]

Hello, Arsen.

Happy new year to you, too!

On Thu, Jan 02, 2025 at 21:09:26 +0100, Arsen Arsenović wrote:
> Hi Alan,

> Happy new year!

> ... and sorry to bother you so early in 2025!

> Arsen Arsenović <cc-...@li...> writes:

> > I was referring to the patch, sorry for not being clear:

> >   https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

> > ... it adds the relatively new 'var' keyword to the Java support.

> Gentle ping on this:
> https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

> It should be another easy patch to merge.

I'll get it seen to, soon.  I'll try to get the commit message correct
this time, too.  ;-)

> Thanks in advance.
> -- 
> Arsen Arsenović

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: [PATCH] Java assert keyword

[Arsen A. <ar...@aa...>]

Hi Alan,

Happy new year!

... and sorry to bother you so early in 2025!

Arsen Arsenović <cc-...@li...> writes:

> I was referring to the patch, sorry for not being clear:
>
>   https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e
>
> ... it adds the relatively new 'var' keyword to the Java support.

Gentle ping on this:
https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

It should be another easy patch to merge.

Thanks in advance.
-- 
Arsen Arsenović

Re: [PATCH] Java assert keyword

[Arsen A. <ar...@aa...>]

Hi Alan,

Alan Mackenzie <ac...@mu...> writes:

>> > I just noticed the same about var and, similarly:
>> > https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e
>
>> > BTW, C has recently gained auto type deduction similar to C++
>
> Yes.  What is the world coming to?  ;-)
>
>> Seems that we forgot about this one!  Whoops.
>
>> Could I ask for this one being applied too?
>
> Certainly!  There are actually a few new things in C23 I need to attend
> to.

I was referring to the patch, sorry for not being clear:

  https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

... it adds the relatively new 'var' keyword to the Java support.

> There's numbers like 1'000'000, for example.  That's already been
> implemented for C++ Mode, so shouldn't be much trouble, but I need to
> get down to this and do it systematically.  So give me just a little
> time here, please.

No worries!  I didn't mean to hurry you along, sorry!
-- 
Arsen Arsenović

Re: [PATCH] Java assert keyword

[Alan M. <ac...@mu...>]

Hello, Arsen.

On Sun, Dec 22, 2024 at 23:55:54 +0100, Arsen Arsenović wrote:
> Hi Alan,

> Arsen Arsenović via CC-Mode-help <cc-...@li...> writes:

> > Arsen Arsenović <ar...@aa...> writes:

> >> Hi Alan!

> >> I've, regrettably, been writing Java lately and I noticed CC-mode
> >> doesn't recognize asserts.  So I added it, hopefully correctly.

> > I just noticed the same about var and, similarly:
> > https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

> > BTW, C has recently gained auto type deduction similar to C++

Yes.  What is the world coming to?  ;-)

> Seems that we forgot about this one!  Whoops.

> Could I ask for this one being applied too?

Certainly!  There are actually a few new things in C23 I need to attend
to.  There's numbers like 1'000'000, for example.  That's already been
implemented for C++ Mode, so shouldn't be much trouble, but I need to
get down to this and do it systematically.  So give me just a little
time here, please.

> Thanks in advance, and sorry for bothering.

No bother at all!

> Have a lovely day!

And yourself, too!

> -- 
> Arsen Arsenović

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: [PATCH] Java assert keyword

[Arsen A. <ar...@aa...>]

Hi Alan,

Arsen Arsenović via CC-Mode-help <cc-...@li...> writes:

> Arsen Arsenović <ar...@aa...> writes:
>
>> Hi Alan!
>>
>> I've, regrettably, been writing Java lately and I noticed CC-mode
>> doesn't recognize asserts.  So I added it, hopefully correctly.
>
> I just noticed the same about var and, similarly:
> https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e
>
> BTW, C has recently gained auto type deduction similar to C++

Seems that we forgot about this one!  Whoops.

Could I ask for this one being applied too?

Thanks in advance, and sorry for bothering.

Have a lovely day!
-- 
Arsen Arsenović

Re: [PATCH] Java assert keyword

[Arsen A. <ar...@aa...>]

Alan Mackenzie <ac...@mu...> writes:

> Great news, thanks!
>
> I've committed your patch (trivially altered to keep things in
> alphabetical order), and committed it under your name in stand alone CC
> Mode, XEmacs, and the Emacs master branch.

Thanks!  Just rebuilt Emacs, so I got it now.  The keyword is nice and
fontified in my files :)

> Have a great Christmas!

Likewise!
-- 
Arsen Arsenović

Re: [PATCH] Java assert keyword

[Alan M. <ac...@mu...>]

Hello, Arsen.

On Sun, Dec 22, 2024 at 15:29:47 +0100, Arsen Arsenović wrote:
> Hi Alan,

> Arsen Arsenović <ar...@aa...> writes:

> > Arsen Arsenović via CC-Mode-help <cc-...@li...> writes:

> >> Arsen Arsenović <ar...@aa...> writes:

> >>> Hi Alan!

> >>> I've, regrettably, been writing Java lately and I noticed CC-mode
> >>> doesn't recognize asserts.  So I added it, hopefully correctly.

> >> I just noticed the same about var and, similarly:
> >> https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

> A ping again - the copyright assignment went through.

Great news, thanks!

I've committed your patch (trivially altered to keep things in
alphabetical order), and committed it under your name in stand alone CC
Mode, XEmacs, and the Emacs master branch.

Have a great Christmas!

> -- 
> Arsen Arsenović

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: [PATCH] Java assert keyword

[Arsen A. <ar...@aa...>]

Hi Alan,

Arsen Arsenović <ar...@aa...> writes:

> Arsen Arsenović via CC-Mode-help <cc-...@li...> writes:
>
>> Arsen Arsenović <ar...@aa...> writes:
>>
>>> Hi Alan!
>>>
>>> I've, regrettably, been writing Java lately and I noticed CC-mode
>>> doesn't recognize asserts.  So I added it, hopefully correctly.
>>
>> I just noticed the same about var and, similarly:
>> https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e

A ping again - the copyright assignment went through.
-- 
Arsen Arsenović

Re: [PATCH] Java assert keyword

[Arsen A. <ar...@aa...>]

Eli Zaretskii <el...@gn...> writes:

> Thanks, form sent off-list.

Seems to be finally done, at long last.  \o/
-- 
Arsen Arsenović

Re: [PATCH] Java assert keyword

[Eli Z. <el...@gn...>]

> From: Arsen Arsenović <ar...@aa...>
> Cc: ac...@mu...,  cc-...@li...
> Date: Sat, 14 Dec 2024 13:23:41 +0100
> 
> Eli Zaretskii <el...@gn...> writes:
> 
> > Thanks, form sent off-list.
> 
> Seems to be finally done, at long last.  \o/

Yes, thanks.

Re: [PATCH] Java assert keyword

[Eli Z. <el...@gn...>]

> From: Arsen Arsenović <ar...@aa...>
> Cc: ac...@mu...,  cc-...@li...
> Date: Sun, 27 Oct 2024 20:43:18 +0100
> 
> >> Eli, to save you some time digging, here are the patches in question:
> >> https://hg.sr.ht/~arsen/cc-mode/rev/15bcae1c6ae0f68c75791f9239879af71c4f237c
> >> https://hg.sr.ht/~arsen/cc-mode/rev/ce95a9f9caa050602c107f61dbe933e31338674e
> >> 
> >> Do these need copyright assignment?  How should I go about it?  TIA
> >
> > They are borderline.  I'd prefer that you sign the copyright
> > assignment, definitely if you intend to contribute to Emacs in the
> > future.
> 
> Works for me.  Do send the form.

Thanks, form sent off-list.