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 // <memory>
11 
12 // template <class OuterAlloc, class... InnerAllocs>
13 //   class scoped_allocator_adaptor
14 
15 // template <class OuterA2>
16 //   scoped_allocator_adaptor(scoped_allocator_adaptor<OuterA2,
17 //                                                     InnerAllocs...>&& other);
18 
19 #include <scoped_allocator>
20 #include <cassert>
21 
22 #include "../allocators.h"
23 
24 int main()
25 {
26 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
27 
28     {
29         typedef std::scoped_allocator_adaptor<A1<double>> B;
30         typedef std::scoped_allocator_adaptor<A1<int>> A;
31         B a1(A1<int>(3));
32         A1<int>::copy_called = false;
33         A1<int>::move_called = false;
34         A a2 = std::move(a1);
35         assert(A1<int>::copy_called == false);
36         assert(A1<int>::move_called == true);
37         assert(a2 == a1);
38     }
39     {
40         typedef std::scoped_allocator_adaptor<A1<double>, A2<int>> B;
41         typedef std::scoped_allocator_adaptor<A1<int>, A2<int>> A;
42         B a1(A1<int>(4), A2<int>(5));
43         A1<int>::copy_called = false;
44         A1<int>::move_called = false;
45         A2<int>::copy_called = false;
46         A2<int>::move_called = false;
47         A a2 = std::move(a1);
48         assert(A1<int>::copy_called == false);
49         assert(A1<int>::move_called == true);
50         assert(A2<int>::copy_called == false);
51         assert(A2<int>::move_called == true);
52         assert(a2 == a1);
53     }
54     {
55         typedef std::scoped_allocator_adaptor<A1<double>, A2<int>, A3<int>> B;
56         typedef std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>> A;
57         B a1(A1<int>(4), A2<int>(5), A3<int>(6));
58         A1<int>::copy_called = false;
59         A1<int>::move_called = false;
60         A2<int>::copy_called = false;
61         A2<int>::move_called = false;
62         A3<int>::copy_called = false;
63         A3<int>::move_called = false;
64         A a2 = std::move(a1);
65         assert(A1<int>::copy_called == false);
66         assert(A1<int>::move_called == true);
67         assert(A2<int>::copy_called == false);
68         assert(A2<int>::move_called == true);
69         assert(A3<int>::copy_called == false);
70         assert(A3<int>::move_called == true);
71         assert(a2 == a1);
72     }
73 
74 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
75 }
76