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23df8534 JW |
1 | // { dg-options "-std=gnu++11" } |
2 | // { dg-do compile } | |
3 | ||
5624e564 | 4 | // Copyright (C) 2012-2015 Free Software Foundation, Inc. |
23df8534 JW |
5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
10 | // any later version. | |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
17 | // You should have received a copy of the GNU General Public License along | |
18 | // with this library; see the file COPYING3. If not see | |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | // 20.7.1 Class template unique_ptr [unique.ptr] | |
22 | ||
23 | #include <memory> | |
24 | ||
25 | struct A { virtual ~A() = default; }; | |
26 | ||
27 | struct B : A { }; | |
28 | ||
29 | // Construction from objects with different cv-qualification | |
30 | ||
31 | void | |
32 | test01() | |
33 | { | |
34 | std::unique_ptr<const A> cA(new A); | |
35 | std::unique_ptr<volatile A> vA(new A); | |
36 | std::unique_ptr<const volatile A> cvA(new A); | |
37 | } | |
38 | ||
39 | void | |
40 | test02() | |
41 | { | |
42 | std::unique_ptr<const A> cB(new B); | |
43 | std::unique_ptr<volatile A> vB(new B); | |
44 | std::unique_ptr<const volatile A> cvB(new B); | |
45 | } | |
46 | ||
47 | void | |
48 | test03() | |
49 | { | |
50 | std::unique_ptr<A> upA; | |
51 | ||
52 | std::unique_ptr<const A> cA(std::move(upA)); | |
53 | std::unique_ptr<volatile A> vA(std::move(upA)); | |
54 | std::unique_ptr<const volatile A> cvA(std::move(upA)); | |
55 | } | |
56 | ||
57 | void | |
58 | test04() | |
59 | { | |
60 | std::unique_ptr<B> upB; | |
61 | ||
62 | std::unique_ptr<const A> cA(std::move(upB)); | |
63 | std::unique_ptr<volatile A> vA(std::move(upB)); | |
64 | std::unique_ptr<const volatile A> cvA(std::move(upB)); | |
65 | } | |
66 | ||
67 | void | |
68 | test05() | |
69 | { | |
70 | std::unique_ptr<const A[]> cA(new A[1]); | |
71 | std::unique_ptr<volatile A[]> vA(new A[1]); | |
72 | std::unique_ptr<const volatile A[]> cvA(new A[1]); | |
73 | } | |
74 | ||
75 | void | |
76 | test06() | |
77 | { | |
78 | std::unique_ptr<A[]> upA; | |
79 | ||
80 | std::unique_ptr<const A[]> cA(std::move(upA)); | |
81 | std::unique_ptr<volatile A[]> vA(std::move(upA)); | |
82 | std::unique_ptr<const volatile A[]> cvA(std::move(upA)); | |
83 | } | |
84 | ||
85 | struct A_pointer { operator A*() const { return nullptr; } }; | |
86 | ||
87 | void | |
88 | test07() | |
89 | { | |
90 | // Allow conversions from user-defined pointer-like types | |
91 | A_pointer p; | |
92 | std::unique_ptr<A[]> upA(p); | |
93 | std::unique_ptr<const A[]> cA(p); | |
94 | std::unique_ptr<volatile A[]> vA(p); | |
95 | std::unique_ptr<const volatile A[]> cvA(p); | |
96 | } | |
97 | ||
98 | template<typename T> | |
99 | struct deleter | |
100 | { | |
101 | deleter() = default; | |
102 | template<typename U> | |
103 | deleter(const deleter<U>) { } | |
104 | typedef T pointer; | |
105 | void operator()(T) const { } | |
106 | }; | |
107 | ||
108 | void | |
109 | test08() | |
110 | { | |
111 | // Allow conversions from user-defined pointer-like types | |
112 | std::unique_ptr<B[], deleter<A_pointer>> p; | |
113 | std::unique_ptr<A[], deleter<A*>> upA(std::move(p)); | |
114 | } | |
115 |