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>
15 //   tuple(allocator_arg_t, const Alloc& a, const tuple&);
16 
17 #include <tuple>
18 #include <cassert>
19 
20 #include "../allocators.h"
21 #include "../alloc_first.h"
22 #include "../alloc_last.h"
23 
24 int main()
25 {
26     {
27         typedef std::tuple<> T;
28         T t0;
29         T t(std::allocator_arg, A1<int>(), t0);
30     }
31     {
32         typedef std::tuple<int> T;
33         T t0(2);
34         T t(std::allocator_arg, A1<int>(), t0);
35         assert(std::get<0>(t) == 2);
36     }
37     {
38         typedef std::tuple<alloc_first> T;
39         T t0(2);
40         alloc_first::allocator_constructed = false;
41         T t(std::allocator_arg, A1<int>(5), t0);
42         assert(alloc_first::allocator_constructed);
43         assert(std::get<0>(t) == 2);
44     }
45     {
46         typedef std::tuple<alloc_last> T;
47         T t0(2);
48         alloc_last::allocator_constructed = false;
49         T t(std::allocator_arg, A1<int>(5), t0);
50         assert(alloc_last::allocator_constructed);
51         assert(std::get<0>(t) == 2);
52     }
53     {
54         typedef std::tuple<alloc_first, alloc_last> T;
55         T t0(2, 3);
56         alloc_first::allocator_constructed = false;
57         alloc_last::allocator_constructed = false;
58         T t(std::allocator_arg, A1<int>(5), t0);
59         assert(alloc_first::allocator_constructed);
60         assert(alloc_last::allocator_constructed);
61         assert(std::get<0>(t) == 2);
62         assert(std::get<1>(t) == 3);
63     }
64     {
65         typedef std::tuple<int, alloc_first, alloc_last> T;
66         T t0(1, 2, 3);
67         alloc_first::allocator_constructed = false;
68         alloc_last::allocator_constructed = false;
69         T t(std::allocator_arg, A1<int>(5), t0);
70         assert(alloc_first::allocator_constructed);
71         assert(alloc_last::allocator_constructed);
72         assert(std::get<0>(t) == 1);
73         assert(std::get<1>(t) == 2);
74         assert(std::get<2>(t) == 3);
75     }
76 }
77