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