GNU bug report logs - #29339
27.0.50; CC-mode doesn't know about .mm and .M suffixes for Objective-C++

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Message #13 received at 29339 <at> debbugs.gnu.org (full text, mbox):

From: Philipp Stephani <p.stephani2 <at> gmail.com>
To: Alan Mackenzie <acm <at> muc.de>
Cc: 29339 <at> debbugs.gnu.org
Subject: Re: bug#29339: 27.0.50; CC-mode doesn't know about .mm and .M
 suffixes for Objective-C++
Date: Thu, 21 Dec 2017 19:22:05 +0000

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Alan Mackenzie <acm <at> muc.de> schrieb am Fr., 17. Nov. 2017 um 20:00 Uhr:

> In article <mailman.3878.1510925890.27995.bug-gnu-emacs <at> gnu.org> you
> wrote:
>
> > GCC uses .mm or .M for Objective-C++,
> > cf. https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gcc/Overall-Options.html.
> > However, neither `auto-mode-alist' nor `cc-other-file-alist' contain
> > these file extensions.
>
> I don't think there's an Objective-C++ mode out there in the wild.  So
> what existing mode should be used for *.mm and *.M?  Is that mode a good
> enough fit to be able, in good conscience, to use it for Obj-C++?
>

According to https://www.emacswiki.org/emacs/ObjectiveCMode#toc2 objc-mode
is the most appropriate mode for now, until a true objc++-mode is added.

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