| // PR c++/79205 |
| // { dg-do compile { target c++11 } } |
| // { dg-options "" } |
| |
| template <unsigned long, typename...> struct B; |
| template <unsigned long I, typename H> struct B<I, H> { int b; }; |
| template <typename... E> struct C { B<0, E...> c; C (C &) = default; C (C &&); }; |
| template <typename> struct tuple_size; |
| template <> struct tuple_size<C<int>> { static constexpr int value = 1; }; |
| template <int, typename> struct tuple_element; |
| template <typename H, typename... T> |
| struct tuple_element<0, C<H, T...>> { typedef int type; }; |
| template <int, typename... E> |
| int &&get (C<E...> &&); |
| |
| int |
| foo (C<int> t) |
| { |
| auto[x0] = t; // { dg-warning "structured bindings only available with" "" { target c++14_down } } |
| return x0; |
| } |
