27 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <tuple>10 11// template <class... Types> class tuple;12 13// template <size_t I, class... Types>14// struct tuple_element<I, tuple<Types...> >15// {16// typedef Ti type;17// };18 19// UNSUPPORTED: c++0320 21#include <tuple>22 23using T = std::tuple<int, long, void*>;24using E1 = typename std::tuple_element<1, T &>::type; // expected-error{{undefined template}}25using E2 = typename std::tuple_element<3, T>::type;26using E3 = typename std::tuple_element<4, T const>::type; // expected-error@*:* 2 {{out of bounds index}}27