Messages in this thread | | | Date | Tue, 17 Oct 2000 10:59:13 +0200 (CEST) | From | Richard Guenther <> | Subject | Re: Patch to remove undefined C code |
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On Mon, 16 Oct 2000, Bernd Schmidt wrote:
> I've been playing with some gcc patches to detect code with undefined > behaviour of the i = i++ variety. The patch below fixes all places in > the kernel that I could find. Note that in some cases, it wasn't > entirely clear what the code intended, so I had to guess. > > I haven't tested this patch at all other than to make sure it compiles.
The following one is wrong, tho - should be rather str[i] = dn[i]; i++;
> diff -x log.build -x .* -dru linux-2.4/drivers/isdn/sc/debug.c linux-2.4-fixed/drivers/isdn/sc/debug.c > --- linux-2.4/drivers/isdn/sc/debug.c Thu Apr 2 01:21:04 1998 > +++ linux-2.4-fixed/drivers/isdn/sc/debug.c Mon Oct 16 14:53:49 2000 > @@ -70,6 +70,6 @@ > int i = 0; > > while(dn[i] != ',') > - str[i] = dn[i++]; > + str[i] = dn[i], i++; > str[i] = 0x0; > }
-- Richard Guenther <richard.guenther@student.uni-tuebingen.de> WWW: http://www.anatom.uni-tuebingen.de/~richi/ The GLAME Project: http://www.glame.de/
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