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52066eae | 1 | // { dg-do run { target c++14 } } |
930d5602 | 2 | |
a5544970 | 3 | // Copyright (C) 2015-2019 Free Software Foundation, Inc. |
930d5602 FY |
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 | // 8.2.1 Class template shared_ptr [memory.smartptr.shared] | |
21 | ||
22 | #include <experimental/memory> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | struct A | |
26 | { | |
27 | int i; | |
28 | virtual ~A() { } | |
29 | }; | |
30 | ||
31 | struct B : A { }; | |
32 | ||
33 | // 8.2.1.2 shared_ptr observers [memory.smartptr.shared.obs] | |
34 | ||
35 | // owner_before | |
36 | void | |
37 | test01() | |
38 | { | |
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39 | // test empty shared_ptrs compare equivalent |
40 | std::experimental::shared_ptr<A[5]> p1; | |
41 | std::experimental::shared_ptr<B[5]> p2; | |
42 | VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); | |
43 | } | |
44 | ||
45 | void | |
46 | test02() | |
47 | { | |
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48 | std::experimental::shared_ptr<A[5]> a0; |
49 | ||
50 | std::experimental::shared_ptr<A[5]> a1(new A[5]); | |
51 | VERIFY( a1.owner_before(a0) || a0.owner_before(a1) ); | |
52 | VERIFY( !(a1.owner_before(a0) && a0.owner_before(a1)) ); | |
53 | ||
54 | std::experimental::shared_ptr<B[5]> b1(new B[5]); | |
55 | VERIFY( a1.owner_before(b1) || b1.owner_before(a1) ); | |
56 | VERIFY( !(a1.owner_before(b1) && b1.owner_before(a1)) ); | |
57 | ||
58 | std::experimental::shared_ptr<A[5]> a2(a1); | |
59 | VERIFY( !a1.owner_before(a2) && !a2.owner_before(a1) ); | |
60 | ||
61 | std::experimental::weak_ptr<A[5]> w1(a1); | |
62 | VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) ); | |
63 | } | |
64 | ||
65 | void | |
66 | test03() | |
67 | { | |
930d5602 FY |
68 | std::experimental::shared_ptr<A[5]> p1(new A[5]); |
69 | std::experimental::shared_ptr<int> p2(p1, &p1[0].i); | |
70 | VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); | |
71 | } | |
72 | ||
73 | int | |
74 | main() | |
75 | { | |
76 | test01(); | |
77 | test02(); | |
78 | test03(); | |
79 | return 0; | |
80 | } |