On Wed, Aug 7, 2013 at 2:58 PM, Rafael Espíndola <[email protected] > wrote:
> > Should foo[n] really return different results depending on the value of > > n? That feels wrong to me. > > This is (and was) the odd case for x86_64. We accept but gcc rejects this > > ----------------------------- > long long int foo[1]; > long long int bar[2]; > > static_assert(alignof(foo) == 8, "foo"); > static_assert(alignof(bar) == 16, "bar"); > ----------------------------- > > Richard, gcc is correct in here, right? To quote Clang, 'alignof' applied to an expression is a GNU extension. Thus we should presumably do what GCC does -- C++ doesn't have a notion of the alignment of a declaration as distinct from the alignment of its type. > If so I can try to code a > patch replacing RefAsPointee with a more generic ForAlignof. > > Cheers, > Rafael >
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