1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03
10
11// <memory>
12
13// template <class OuterAlloc, class... InnerAllocs>
14// class scoped_allocator_adaptor
15
16// template <class OuterA2>
17// scoped_allocator_adaptor(scoped_allocator_adaptor<OuterA2,
18// InnerAllocs...>&& other);
19
20#include <scoped_allocator>
21#include <cassert>
22
23#include "test_macros.h"
24#include "allocators.h"
25
26int main(int, char**) {
27 {
28 typedef std::scoped_allocator_adaptor<A1<double>> B;
29 typedef std::scoped_allocator_adaptor<A1<int>> A;
30 B a1(A1<int>(3));
31 A1<int>::copy_called = false;
32 A1<int>::move_called = false;
33 A a2 = std::move(a1);
34 assert(A1<int>::copy_called == false);
35 assert(A1<int>::move_called == true);
36 assert(a2 == a1);
37 }
38 {
39 typedef std::scoped_allocator_adaptor<A1<double>, A2<int>> B;
40 typedef std::scoped_allocator_adaptor<A1<int>, A2<int>> A;
41 B a1(A1<int>(4), A2<int>(5));
42 A1<int>::copy_called = false;
43 A1<int>::move_called = false;
44 A2<int>::copy_called = false;
45 A2<int>::move_called = false;
46 A a2 = std::move(a1);
47 assert(A1<int>::copy_called == false);
48 assert(A1<int>::move_called == true);
49 assert(A2<int>::copy_called == false);
50 assert(A2<int>::move_called == true);
51 assert(a2 == a1);
52 }
53 {
54 typedef std::scoped_allocator_adaptor<A1<double>, A2<int>, A3<int>> B;
55 typedef std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>> A;
56 B a1(A1<int>(4), A2<int>(5), A3<int>(6));
57 A1<int>::copy_called = false;
58 A1<int>::move_called = false;
59 A2<int>::copy_called = false;
60 A2<int>::move_called = false;
61 A3<int>::copy_called = false;
62 A3<int>::move_called = false;
63 A a2 = std::move(a1);
64 assert(A1<int>::copy_called == false);
65 assert(A1<int>::move_called == true);
66 assert(A2<int>::copy_called == false);
67 assert(A2<int>::move_called == true);
68 assert(A3<int>::copy_called == false);
69 assert(A3<int>::move_called == true);
70 assert(a2 == a1);
71 }
72
73 return 0;
74}
75

source code of libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.cnstr/converting_move.pass.cpp