linux-kernel - Re: [PATCH 16/16] fix handling of integer constant expressions

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Message-Id: <2bd4710c5c9abe1b1e423f11425c1ea5@kernel.crashing.org>
Date:	Mon, 25 Jun 2007 08:13:57 +0200
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	Al Viro <viro@....linux.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-sparse@...r.kernel.org
Subject: Re: [PATCH 16/16] fix handling of integer constant expressions

> Humm...  Right, so __builtin_offsetof() needs special treatment too.
> Oh, bugger.  Is
> 	offsetof(struct foo, a.x[n])
> a documented extension?

It is.  See  info gcc -> C Extensions -> Offsetof


Segher

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