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Re: Serious code generation/optimisation bug (I think)
On Wednesday 28 of January 2009 17:39:39 Andrew Haley wrote:
> ZoltÃn KÃcsi wrote:
> >> No, this is since C90; nothing has changed in this area. NULL
> >> doesn't mean "address 0", it means "nothing". The C statement
> >>
> >> if (ptr)
> >>
> >> doesn't mean "if ptr does not point to address zero", it means "if ptr
> >> points to something".
> >
> > A question then:
> >
> > How can I make a pointer to point to the integer located at address
> > 0x0?
>
> Didn't we address this before? You can't.
do you say that we can't write a valid/defined program in C for
e.g. arm architercture? on some arms, the object (vector interrupt table)
starts at adress 0x0.