linux-kernel - Re: #pragma once?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140106213349.GF28490@thunk.org>
Date:	Mon, 6 Jan 2014 16:33:49 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Josh Triplett <josh@...htriplett.org>
Cc:	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Michal Marek <mmarek@...e.cz>, Sam Ravnborg <sam@...nborg.org>,
	Rashika Kheria <rashika.kheria@...il.com>
Subject: Re: #pragma once?

On Mon, Jan 06, 2014 at 12:47:07PM -0800, Josh Triplett wrote:
> Does anyone have any objection to the use of "#pragma once" instead of
> the usual #ifndef-#define-...-#endif include guard?  GCC, LLVM/clang,
> and the latest Sparse all support either method just fine.  (I added
> support to Sparse myself.)  Both have equivalent performance.  "#pragma
> once" is simpler, and avoids the possibility of a typo in the defined
> guard symbol.

Does anybody know whether other static code analysis tools such as
Coverity can handle #pragma once?

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/