xref: /llvm-project/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/alloc_convert_copy.pass.cpp (revision 0a52cd7937f2bd1ad97cc35e5dae74bfb949f2d5)
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, const tuple<UTypes...>&);
16 
17 // UNSUPPORTED: c++98, c++03
18 
19 #include <tuple>
20 #include <cassert>
21 
22 #include "allocators.h"
23 #include "../alloc_first.h"
24 #include "../alloc_last.h"
25 
26 int main()
27 {
28     {
29         typedef std::tuple<double> T0;
30         typedef std::tuple<int> T1;
31         T0 t0(2.5);
32         T1 t1(std::allocator_arg, A1<int>(), t0);
33         assert(std::get<0>(t1) == 2);
34     }
35     {
36         typedef std::tuple<int> T0;
37         typedef std::tuple<alloc_first> T1;
38         T0 t0(2);
39         alloc_first::allocator_constructed = false;
40         T1 t1(std::allocator_arg, A1<int>(5), t0);
41         assert(alloc_first::allocator_constructed);
42         assert(std::get<0>(t1) == 2);
43     }
44     {
45         typedef std::tuple<int, int> T0;
46         typedef std::tuple<alloc_first, alloc_last> T1;
47         T0 t0(2, 3);
48         alloc_first::allocator_constructed = false;
49         alloc_last::allocator_constructed = false;
50         T1 t1(std::allocator_arg, A1<int>(5), t0);
51         assert(alloc_first::allocator_constructed);
52         assert(alloc_last::allocator_constructed);
53         assert(std::get<0>(t1) == 2);
54         assert(std::get<1>(t1) == 3);
55     }
56     {
57         typedef std::tuple<double, int, int> T0;
58         typedef std::tuple<int, alloc_first, alloc_last> T1;
59         T0 t0(1.5, 2, 3);
60         alloc_first::allocator_constructed = false;
61         alloc_last::allocator_constructed = false;
62         T1 t1(std::allocator_arg, A1<int>(5), t0);
63         assert(alloc_first::allocator_constructed);
64         assert(alloc_last::allocator_constructed);
65         assert(std::get<0>(t1) == 1);
66         assert(std::get<1>(t1) == 2);
67         assert(std::get<2>(t1) == 3);
68     }
69 }
70