On Mon, Oct 23, 2000 at 07:48:08PM -0400, David Relson wrote:
> Horst,
>
> What you say is correct. Early comments on gcc-2.96 reflected preprocessor
> changes which made it impossible to compile a kernel. Later comments,
> particularly David Wragg's "struct itimerval" example, show that compiler
> optimizations is broken.
>
> My recollection is that the behavior of "a[i] = b[i++]" is well defined,
> i.e. in the standard. However it's been years since I paid attention to
> those details, so I may be wrong.
Umm, no, since
a[i] = b[i++]
does not have a sequence, it is explicitly undefined behavior in the standard.
As I recall Bernd Schmidt recently found a number of places where the above
construct is used in the Linux kernel.
--
Michael Meissner, Red Hat, Inc.
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