Re: [PATCH] C undefined behavior fix

jtv
2002-01-08T12:58:24Z

On Tue, Jan 08, 2002 at 10:36:47AM -0200, Alexandre Oliva wrote:
>
> > Yes, thank you, that part was obvious already. The question pertained
> > to the fact that nobody outside compiler-visible code was being handed
> > an address for b, and so the compiler could (if it wanted to) prove
> > under pretty broad assumptions that nobody could *find* b to make the
> > change in the first place.
>
> How about a debugger?

True. I just figured that actually modifying auto variables that were
assigned only once and used only once in a debugger fell under the heading
of *very* broad assumptions. :-)

As it turns out, the discussion is now moot since volatile does indeed
imply here what I dared not assume it would, and so it might even solve
the RELOC problem.

Jeroen