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 // explicit tuple(UTypes&&... u);
16
17 #include <tuple>
18 #include <cassert>
19
20 #include "../MoveOnly.h"
21
22 #if _LIBCPP_STD_VER > 11
23
24 struct Empty {};
25 struct A
26 {
27 int id_;
AA28 explicit constexpr A(int i) : id_(i) {}
29 };
30
31 #endif
32
main()33 int main()
34 {
35 {
36 std::tuple<MoveOnly> t(MoveOnly(0));
37 assert(std::get<0>(t) == 0);
38 }
39 {
40 std::tuple<MoveOnly, MoveOnly> t(MoveOnly(0), MoveOnly(1));
41 assert(std::get<0>(t) == 0);
42 assert(std::get<1>(t) == 1);
43 }
44 {
45 std::tuple<MoveOnly, MoveOnly, MoveOnly> t(MoveOnly(0),
46 MoveOnly(1),
47 MoveOnly(2));
48 assert(std::get<0>(t) == 0);
49 assert(std::get<1>(t) == 1);
50 assert(std::get<2>(t) == 2);
51 }
52 // extensions
53 {
54 std::tuple<MoveOnly, MoveOnly, MoveOnly> t(MoveOnly(0),
55 MoveOnly(1));
56 assert(std::get<0>(t) == 0);
57 assert(std::get<1>(t) == 1);
58 assert(std::get<2>(t) == MoveOnly());
59 }
60 {
61 std::tuple<MoveOnly, MoveOnly, MoveOnly> t(MoveOnly(0));
62 assert(std::get<0>(t) == 0);
63 assert(std::get<1>(t) == MoveOnly());
64 assert(std::get<2>(t) == MoveOnly());
65 }
66 #if _LIBCPP_STD_VER > 11
67 {
68 constexpr std::tuple<Empty> t0{Empty()};
69 }
70 {
71 constexpr std::tuple<A, A> t(3, 2);
72 static_assert(std::get<0>(t).id_ == 3, "");
73 }
74 #endif
75 }
76