1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 // template <class... Types> class tuple;
14 // template <size_t I, class... Types>
15 // const typename tuple_element<I, tuple<Types...> >::type&&
16 // get(const tuple<Types...>&& t);
18 // UNSUPPORTED: c++98, c++03
22 template <class T> void cref(T const&) {}
23 template <class T> void cref(T const&&) = delete;
25 std::tuple<int> const tup4() { return std::make_tuple(4); }
29 // LWG2485: tuple should not open a hole in the type system, get() should
30 // imitate [expr.ref]'s rules for accessing data members
32 cref(std::get<0>(tup4())); // expected-error {{call to deleted function 'cref'}}