Hi > On 19/mar/2014, at 23:28, Jonathan Wakely <jwak...@redhat.com> wrote: > >> On 19/03/14 21:39 +0000, Jonathan Wakely wrote: >> I think the safe thing to do is (as I suggested at the time) to have a >> trait saying which iterator types refer to contiguous memory. Our >> debug mode only supports our own containers, so the ones which are >> contiguous are known. For 4.9.0 I think the right option is simply >> to remove __foreign_iterator_aux3 and __foreign_iterator_aux4 >> completely. The fixed version of __foreign_iterator_aux2() can detect >> when we have iterators referring to the same sequence, which is what >> we really want to detect. That's what the attached patch does and what >> I'm going to test. > > With my suggested change we get an XPASS for > testsuite/23_containers/vector/debug/57779_neg.cc > > An __is_contiguous trait would solve that.
Funny, I thought we already had it... Paolo
