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 // template <class... Types>
15 // void swap(tuple<Types...>& x, tuple<Types...>& y);
16
17 // UNSUPPORTED: c++98, c++03
18
19 #include <tuple>
20 #include <cassert>
21
22 #include "MoveOnly.h"
23
main()24 int main()
25 {
26 {
27 typedef std::tuple<> T;
28 T t0;
29 T t1;
30 swap(t0, t1);
31 }
32 {
33 typedef std::tuple<MoveOnly> T;
34 T t0(MoveOnly(0));
35 T t1(MoveOnly(1));
36 swap(t0, t1);
37 assert(std::get<0>(t0) == 1);
38 assert(std::get<0>(t1) == 0);
39 }
40 {
41 typedef std::tuple<MoveOnly, MoveOnly> T;
42 T t0(MoveOnly(0), MoveOnly(1));
43 T t1(MoveOnly(2), MoveOnly(3));
44 swap(t0, t1);
45 assert(std::get<0>(t0) == 2);
46 assert(std::get<1>(t0) == 3);
47 assert(std::get<0>(t1) == 0);
48 assert(std::get<1>(t1) == 1);
49 }
50 {
51 typedef std::tuple<MoveOnly, MoveOnly, MoveOnly> T;
52 T t0(MoveOnly(0), MoveOnly(1), MoveOnly(2));
53 T t1(MoveOnly(3), MoveOnly(4), MoveOnly(5));
54 swap(t0, t1);
55 assert(std::get<0>(t0) == 3);
56 assert(std::get<1>(t0) == 4);
57 assert(std::get<2>(t0) == 5);
58 assert(std::get<0>(t1) == 0);
59 assert(std::get<1>(t1) == 1);
60 assert(std::get<2>(t1) == 2);
61 }
62 }
63