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 Alloc, class... UTypes>
15 //   tuple(allocator_arg_t, const Alloc& a, UTypes&&...);
16 
17 #include <tuple>
18 #include <cassert>
19 
20 #include "../MoveOnly.h"
21 #include "../allocators.h"
22 #include "../alloc_first.h"
23 #include "../alloc_last.h"
24 
25 int main()
26 {
27     {
28         std::tuple<MoveOnly> t(std::allocator_arg, A1<int>(), MoveOnly(0));
29         assert(std::get<0>(t) == 0);
30     }
31     {
32         std::tuple<MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
33                                          MoveOnly(0), MoveOnly(1));
34         assert(std::get<0>(t) == 0);
35         assert(std::get<1>(t) == 1);
36     }
37     {
38         std::tuple<MoveOnly, MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
39                                                    MoveOnly(0),
40                                                    1, 2);
41         assert(std::get<0>(t) == 0);
42         assert(std::get<1>(t) == 1);
43         assert(std::get<2>(t) == 2);
44     }
45     {
46         alloc_first::allocator_constructed = false;
47         alloc_last::allocator_constructed = false;
48         std::tuple<int, alloc_first, alloc_last> t(std::allocator_arg,
49                                                    A1<int>(5), 1, 2, 3);
50         assert(std::get<0>(t) == 1);
51         assert(alloc_first::allocator_constructed);
52         assert(std::get<1>(t) == alloc_first(2));
53         assert(alloc_last::allocator_constructed);
54         assert(std::get<2>(t) == alloc_last(3));
55     }
56     // extensions
57     {
58         std::tuple<MoveOnly, MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
59                                                    0, 1);
60         assert(std::get<0>(t) == 0);
61         assert(std::get<1>(t) == 1);
62         assert(std::get<2>(t) == MoveOnly());
63     }
64     {
65         std::tuple<MoveOnly, MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
66                                                    0);
67         assert(std::get<0>(t) == 0);
68         assert(std::get<1>(t) == MoveOnly());
69         assert(std::get<2>(t) == MoveOnly());
70     }
71 }
72