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 // pointer allocate(size_type n, const_void_pointer hint);
16 
17 #include <scoped_allocator>
18 #include <cassert>
19 
20 #include "../allocators.h"
21 
22 int main()
23 {
24 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
25 
26     {
27         typedef std::scoped_allocator_adaptor<A1<int>> A;
28         A a;
29         A1<int>::allocate_called = false;
30         assert(a.allocate(10, (const void*)0) == (int*)10);
31         assert(A1<int>::allocate_called == true);
32     }
33     {
34         typedef std::scoped_allocator_adaptor<A1<int>, A2<int>> A;
35         A a;
36         A1<int>::allocate_called = false;
37         assert(a.allocate(10, (const void*)10) == (int*)10);
38         assert(A1<int>::allocate_called == true);
39     }
40     {
41         typedef std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>> A;
42         A a;
43         A1<int>::allocate_called = false;
44         assert(a.allocate(10, (const void*)20) == (int*)10);
45         assert(A1<int>::allocate_called == true);
46     }
47 
48     {
49         typedef std::scoped_allocator_adaptor<A2<int>> A;
50         A a;
51         A2<int>::allocate_called = false;
52         assert(a.allocate(10, (const void*)0) == (int*)0);
53         assert(A2<int>::allocate_called == true);
54     }
55     {
56         typedef std::scoped_allocator_adaptor<A2<int>, A2<int>> A;
57         A a;
58         A2<int>::allocate_called = false;
59         assert(a.allocate(10, (const void*)10) == (int*)10);
60         assert(A2<int>::allocate_called == true);
61     }
62     {
63         typedef std::scoped_allocator_adaptor<A2<int>, A2<int>, A3<int>> A;
64         A a;
65         A2<int>::allocate_called = false;
66         assert(a.allocate(10, (const void*)20) == (int*)20);
67         assert(A2<int>::allocate_called == true);
68     }
69 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
70 }
71