empty_member.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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// <tuple>
11
12// template <class... Types> class tuple;
13
14// This is not a portable test
15
16#include <tuple>
17
18struct A {};
19
20struct B {};
21
22int main()
23{
24    {
25        typedef std::tuple<int, A> T;
26        static_assert((sizeof(T) == sizeof(int)), "");
27    }
28    {
29        typedef std::tuple<A, int> T;
30        static_assert((sizeof(T) == sizeof(int)), "");
31    }
32    {
33        typedef std::tuple<A, int, B> T;
34        static_assert((sizeof(T) == sizeof(int)), "");
35    }
36    {
37        typedef std::tuple<A, B, int> T;
38        static_assert((sizeof(T) == sizeof(int)), "");
39    }
40    {
41        typedef std::tuple<int, A, B> T;
42        static_assert((sizeof(T) == sizeof(int)), "");
43    }
44}
45