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... UTypes>
15 // tuple& operator=(tuple<UTypes...>&& u);
16
17 // UNSUPPORTED: c++98, c++03
18
19 #include <tuple>
20 #include <string>
21 #include <memory>
22 #include <utility>
23 #include <cassert>
24
25 struct B
26 {
27 int id_;
28
BB29 explicit B(int i= 0) : id_(i) {}
30
~BB31 virtual ~B() {}
32 };
33
34 struct D
35 : B
36 {
DD37 explicit D(int i) : B(i) {}
38 };
39
main()40 int main()
41 {
42 {
43 typedef std::tuple<double> T0;
44 typedef std::tuple<int> T1;
45 T0 t0(2.5);
46 T1 t1;
47 t1 = std::move(t0);
48 assert(std::get<0>(t1) == 2);
49 }
50 {
51 typedef std::tuple<double, char> T0;
52 typedef std::tuple<int, int> T1;
53 T0 t0(2.5, 'a');
54 T1 t1;
55 t1 = std::move(t0);
56 assert(std::get<0>(t1) == 2);
57 assert(std::get<1>(t1) == int('a'));
58 }
59 {
60 typedef std::tuple<double, char, D> T0;
61 typedef std::tuple<int, int, B> T1;
62 T0 t0(2.5, 'a', D(3));
63 T1 t1;
64 t1 = std::move(t0);
65 assert(std::get<0>(t1) == 2);
66 assert(std::get<1>(t1) == int('a'));
67 assert(std::get<2>(t1).id_ == 3);
68 }
69 {
70 D d(3);
71 D d2(2);
72 typedef std::tuple<double, char, D&> T0;
73 typedef std::tuple<int, int, B&> T1;
74 T0 t0(2.5, 'a', d2);
75 T1 t1(1.5, 'b', d);
76 t1 = std::move(t0);
77 assert(std::get<0>(t1) == 2);
78 assert(std::get<1>(t1) == int('a'));
79 assert(std::get<2>(t1).id_ == 2);
80 }
81 {
82 typedef std::tuple<double, char, std::unique_ptr<D>> T0;
83 typedef std::tuple<int, int, std::unique_ptr<B>> T1;
84 T0 t0(2.5, 'a', std::unique_ptr<D>(new D(3)));
85 T1 t1;
86 t1 = std::move(t0);
87 assert(std::get<0>(t1) == 2);
88 assert(std::get<1>(t1) == int('a'));
89 assert(std::get<2>(t1)->id_ == 3);
90 }
91 }
92