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Re: [PATCH] Fix PR21082 for C++
Richard Guenther <richard.guenther@gmail.com> writes:
| On 4/24/05, Richard Henderson <rth@redhat.com> wrote:
| > On Sun, Apr 24, 2005 at 07:32:38PM +0200, Richard Guenther wrote:
| > > It happens that they don't match all the time. See the hoops the
| > > caller of extract_array_ref jumps through. I.e. the types are different
| > > from TYPE_DOMAIN of the array even if they are not constants.
| >
| > Then cast to the TYPE_DOMAIN type first?
|
| While this would be possible, I fail to see the advantage of doing this.
| You will end up in (ptrdiff_t)((domain_t)i - (domain_t)j) instead of
| (ptrdiff_t)i - (ptrdiff_t)j. Are you concerned about correctness or about
| more folding oportunities here?
Ins't there a sign-extention issue?
-- Gaby