This is the mail archive of the
mailing list for the GCC project.
Re: [PATCH v3][AArch64] Fix symbol offset limit
On 15/06/17 18:51, Wilco Dijkstra wrote:
> Richard Earnshaw wrote:
>> You can write it, but it's meaningless by the C standard. You can't
>> take the address beyond one after the size of the object, so anything
>> more than &a+1 has no meaning.
> No it's perfectly valid and such out-of-range cases occur thousands of
> times when building any non-trivial code. For example a[i + C] transforms
> into (&a + C)[i].
C11: Summary of undefined behaviours.
— Addition or subtraction of a pointer into, or just beyond, an array
object and an
integer type produces a result that does not point into, or just beyond,
the same array