From: Gregory Heytings <gregory@heytings.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Po Lu <luangruo@yahoo.com>, stefankangas@gmail.com, emacs-devel@gnu.org
Subject: Re: master 37889523278: Add new `swap` macro and use it
Date: Fri, 12 Jan 2024 00:50:28 +0000 [thread overview]
Message-ID: <4719da9bc2bbcffdb634@heytings.org> (raw)
In-Reply-To: <83v886sgtl.fsf@gnu.org>
>
> Did Stefan's change break some build? If so, which build became broken
> and why?
>
FYI, Stefan's change did not break any build. "typeof" is supported by
all compilers with which Emacs can be built, either with the keyword
"typeof" or with the keyword "__typeof__". The only notable compiler that
does not support "typeof" is MSVC, with which Emacs cannot be built.
"typeof" will, moreover, officially become part of Standard C in a few
weeks. In doing so, the standard committee did not add something new to
the language, but instead codified existing practice. You can see this in
the rationale for that change [1], which says:
"Every implementation in existence since C89 has an implementation of
typeof. Some compilers (GCC, Clang, EDG, tcc, and many, many more) expose
this with the implementation extension typeof. [...] This feature is the
most "existing practice"-iest feature to be proposed to the C Standard,
possibly in the entire history of the C standard. The feature was also
mentioned in an "extension round up" paper that went over the state of C
Extensions in 2007. typeof was also considered an important extension
during the discussion of that paper, but nobody brought forth the paper
previously to make it a reality."
[1] https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2619.htm
next prev parent reply other threads:[~2024-01-12 0:50 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <170452579053.27998.16123231327386305897@vcs2.savannah.gnu.org>
[not found] ` <20240106072311.28B8FC0034E@vcs2.savannah.gnu.org>
2024-01-06 7:39 ` master 37889523278: Add new `swap` macro and use it Po Lu
2024-01-06 8:44 ` Eli Zaretskii
2024-01-06 8:45 ` Po Lu
2024-01-06 9:18 ` Stefan Kangas
2024-01-06 10:33 ` Po Lu
2024-01-06 11:30 ` Stefan Kangas
2024-01-06 13:13 ` Po Lu
2024-01-06 13:59 ` Eli Zaretskii
2024-01-06 14:41 ` Po Lu
2024-01-06 15:34 ` Eli Zaretskii
2024-01-07 1:39 ` Po Lu
2024-01-07 6:34 ` Stefan Kangas
2024-01-07 7:50 ` Po Lu
2024-01-07 8:33 ` Eli Zaretskii
2024-01-07 9:45 ` Stefan Kangas
2024-01-07 10:36 ` Po Lu
2024-01-07 11:34 ` Eli Zaretskii
2024-01-07 11:53 ` Po Lu
2024-01-07 14:37 ` Eli Zaretskii
2024-01-07 17:32 ` Stefan Kangas
2024-01-08 2:15 ` Po Lu
2024-01-07 7:09 ` Eli Zaretskii
2024-01-12 0:50 ` Gregory Heytings [this message]
2024-01-13 10:16 ` Stefan Kangas
2024-01-14 3:03 ` Richard Stallman
2024-01-14 5:14 ` Po Lu
2024-01-14 7:07 ` Eli Zaretskii
2024-01-14 8:05 ` Po Lu
2024-01-14 9:31 ` Eli Zaretskii
2024-01-15 1:32 ` Gregory Heytings
2024-01-15 12:41 ` Eli Zaretskii
2024-01-15 13:56 ` Po Lu
2024-01-15 14:13 ` Eli Zaretskii
2024-01-18 1:01 ` Gregory Heytings
2024-01-18 2:11 ` Po Lu
2024-01-27 1:26 ` Gregory Heytings
2024-01-27 2:58 ` Po Lu
2024-01-27 23:44 ` Stefan Kangas
2024-01-28 1:51 ` Po Lu
2024-01-28 2:35 ` Stefan Kangas
2024-01-28 4:17 ` Po Lu
2024-01-28 6:28 ` Eli Zaretskii
2024-01-28 2:22 ` Gregory Heytings
2024-01-28 4:03 ` Po Lu
2024-01-30 2:00 ` Gregory Heytings
2024-01-30 2:41 ` Po Lu
2024-01-28 6:40 ` Eli Zaretskii
2024-01-30 1:59 ` Gregory Heytings
2024-01-30 12:41 ` Eli Zaretskii
2024-01-18 6:22 ` Eli Zaretskii
2024-01-27 1:25 ` Gregory Heytings
2024-01-27 3:08 ` Po Lu
2024-01-27 7:19 ` Eli Zaretskii
2024-01-17 3:29 ` Richard Stallman
2024-01-17 10:16 ` Stefan Kangas
2024-01-17 11:15 ` Po Lu
2024-01-17 21:15 ` Stefan Kangas
2024-01-18 0:39 ` Po Lu
2024-01-18 19:17 ` Stefan Kangas
2024-01-19 1:10 ` Po Lu
2024-01-20 20:31 ` Stefan Kangas
2024-01-22 3:35 ` Richard Stallman
2024-01-22 4:48 ` Po Lu
2024-01-22 18:21 ` Dmitry Gutov
2024-01-23 0:50 ` Po Lu
2024-01-25 23:38 ` Stefan Kangas
2024-01-26 2:02 ` Po Lu
2024-01-26 7:53 ` Eli Zaretskii
2024-01-26 7:38 ` Eli Zaretskii
2024-01-19 3:32 ` Richard Stallman
2024-01-19 4:12 ` Po Lu
2024-01-27 1:27 ` Gregory Heytings
2024-01-27 23:56 ` Stefan Kangas
2024-01-28 2:23 ` Gregory Heytings
2024-01-13 8:02 ` Stefan Kangas
2024-01-13 9:14 ` Eli Zaretskii
2024-01-13 9:50 ` Mattias Engdegård
2024-01-06 8:50 ` Stefan Kangas
2024-01-06 9:09 ` Po Lu
2024-01-06 9:52 ` Andreas Schwab
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