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