1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// UNSUPPORTED: c++98, c++03 11 12// <tuple> 13 14// template <class... Types> 15// class tuple_size<tuple<Types...>> 16// : public integral_constant<size_t, sizeof...(Types)> { }; 17 18// Expect failures with a reference type, pointer type, and a non-tuple type. 19 20#include <tuple> 21 22int main() 23{ 24 (void)std::tuple_size<std::tuple<> &>::value; // expected-error {{implicit instantiation of undefined template}} 25 (void)std::tuple_size<int>::value; // expected-error {{implicit instantiation of undefined template}} 26 (void)std::tuple_size<std::tuple<>*>::value; // expected-error {{implicit instantiation of undefined template}} 27} 28