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

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Message-ID: <20070627121021.GQ7590@daikokuya.co.uk>
Date:	Wed, 27 Jun 2007 21:10:21 +0900
From:	Neil Booth <neil@...kokuya.co.uk>
To:	Al Viro <viro@....linux.org.uk>
Cc:	Josh Triplett <josh@...edesktop.org>,
	Segher Boessenkool <segher@...nel.crashing.org>,
	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

Al Viro wrote:-

> Hopefully correct handling of integer constant expressions.  Please, review.

Here are three independently invalid non-ICEs that sparse doesn't
diagnose.

extern int f(void);
enum { cast_to_ptr = (int) (void *) 0 };
enum { cast_to_float = (int) (double) 1 };
enum { fncall = 0 ? f(): 3 };

Hey, I did warn you it was tricky :)

Neil.
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