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52066eae | 1 | // { dg-do run { target c++11 } } |
23df8534 | 2 | |
a5544970 | 3 | // Copyright (C) 2012-2019 Free Software Foundation, Inc. |
23df8534 JW |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // 20.7.2.2 Class template shared_ptr [util.smartptr.shared] | |
21 | ||
22 | #include <memory> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
b2343559 JW |
25 | #if __cpp_lib_shared_ptr_arrays >= 201603 |
26 | # define SHARED_PTR_ARRAYS | |
27 | #endif | |
28 | #if __cpp_lib_enable_shared_from_this >= 201603 | |
29 | # define WEAK_FROM_THIS | |
30 | #endif | |
31 | ||
23df8534 JW |
32 | int destroyed = 0; |
33 | ||
34 | struct A : std::enable_shared_from_this<A> | |
35 | { | |
36 | ~A() { ++destroyed; } | |
37 | }; | |
38 | ||
39 | // 20.7.2.2.1 shared_ptr constructors [util.smartptr.shared.const] | |
40 | ||
41 | // Construction from unique_ptr<A[]> | |
42 | int | |
43 | test01() | |
44 | { | |
23df8534 | 45 | std::unique_ptr<A[]> up(new A[2]); |
b2343559 JW |
46 | #ifdef SHARED_PTR_ARRAYS |
47 | std::shared_ptr<A[]> sp(std::move(up)); | |
48 | #else | |
23df8534 | 49 | std::shared_ptr<A> sp(std::move(up)); |
b2343559 | 50 | #endif |
23df8534 JW |
51 | VERIFY( up.get() == 0 ); |
52 | VERIFY( sp.get() != 0 ); | |
53 | VERIFY( sp.use_count() == 1 ); | |
54 | ||
b2343559 JW |
55 | #ifdef SHARED_PTR_ARRAYS |
56 | # ifdef WEAK_FROM_THIS | |
57 | VERIFY( sp[0].weak_from_this().expired() ); | |
58 | # endif | |
59 | #else | |
23df8534 | 60 | VERIFY( sp->shared_from_this() != nullptr ); |
b2343559 | 61 | #endif |
23df8534 JW |
62 | |
63 | sp.reset(); | |
64 | VERIFY( destroyed == 2 ); | |
65 | ||
66 | return 0; | |
67 | } | |
68 | ||
69 | int | |
70 | main() | |
71 | { | |
72 | test01(); | |
73 | return 0; | |
74 | } |