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// { dg-do compile { target c++11 } }
// { dg-options "" }
namespace std {
template<typename T> struct tuple_size;
template<int, typename> struct tuple_element;
}
struct A {
int i;
template <int I> int& get() { return i; }
};
template<> struct std::tuple_size<A> { static const int value = 3; };
template<int I> struct std::tuple_element<I,A> { using type = int; };
struct B {
int i, j;
long long k, l;
} z[6];
void
foo (A &a, B &b)
{
auto [ c [[]], d, e [[maybe_unused]] ] = a; // { dg-warning "structured bindings with attributed identifiers only available with" "" { target { c++17 && c++23_down } } }
// { dg-warning "structured bindings only available with" "" { target c++14_down } .-1 }
auto [ f, h [[maybe_unused]] [[]], i [[]], j ] = b; // { dg-warning "structured bindings with attributed identifiers only available with" "" { target { c++17 && c++23_down } } }
// { dg-warning "structured bindings only available with" "" { target c++14_down } .-1 }
for (auto [ k, l [[maybe_unused]], m, n [[]]] : z) // { dg-warning "structured bindings with attributed identifiers only available with" "" { target { c++17 && c++23_down } } }
; // { dg-warning "structured bindings only available with" "" { target c++14_down } .-1 }
auto &[o[[]][[]][[]], p[[]], q[[]]] = a; // { dg-warning "structured bindings with attributed identifiers only available with" "" { target { c++17 && c++23_down } } }
; // { dg-warning "structured bindings only available with" "" { target c++14_down } .-1 }
}
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