[Bug c++/59012] New: alignas does not support parameter pack expansions

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59012

            Bug ID: 59012
           Summary: alignas does not support parameter pack expansions
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: rejects-valid
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
            Blocks: 58601

template<unsigned N, typename... T>
struct aligned_union
{
  alignas(T...) char data[N];
};

int main()
{
  aligned_union<8, double> a;
}