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4415f7a5 | 1 | // { dg-options "-std=gnu++11" } |
8dd5e93a | 2 | |
5624e564 | 3 | // Copyright (C) 2008-2015 Free Software Foundation, Inc. |
8dd5e93a 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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
8dd5e93a JW |
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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
8dd5e93a JW |
19 | |
20 | // 20.8.13.2 Template class shared_ptr [util.smartptr.shared] | |
21 | ||
22 | #include <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 | }; | |
34 | ||
35 | // 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs] | |
36 | ||
37 | void | |
38 | test01() | |
39 | { | |
40 | bool test __attribute__((unused)) = true; | |
41 | ||
42 | // test empty shared_ptrs compare equivalent | |
43 | std::shared_ptr<A> p1; | |
44 | std::shared_ptr<B> p2; | |
45 | VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); | |
46 | } | |
47 | ||
48 | ||
49 | // Construction from pointer | |
50 | void | |
51 | test02() | |
52 | { | |
53 | bool test __attribute__((unused)) = true; | |
54 | ||
55 | std::shared_ptr<A> a0; | |
56 | ||
57 | std::shared_ptr<A> a1(new A); | |
58 | VERIFY( a1.owner_before(a0) || a0.owner_before(a1) ); | |
59 | VERIFY( !(a1.owner_before(a0) && a0.owner_before(a1)) ); | |
60 | ||
61 | std::shared_ptr<B> b1(new B); | |
62 | VERIFY( a1.owner_before(b1) || b1.owner_before(a1) ); | |
63 | VERIFY( !(a1.owner_before(b1) && b1.owner_before(a1)) ); | |
64 | ||
65 | std::shared_ptr<A> a2(a1); | |
66 | VERIFY( !a1.owner_before(a2) && !a2.owner_before(a1) ); | |
67 | a2 = b1; | |
68 | VERIFY( !b1.owner_before(a2) && !a2.owner_before(b1) ); | |
69 | ||
70 | std::weak_ptr<A> w1(a1); | |
71 | VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) ); | |
72 | std::weak_ptr<A> w2(a2); | |
73 | VERIFY( !b1.owner_before(w2) && !w2.owner_before(b1) ); | |
74 | } | |
75 | ||
76 | // Aliasing | |
77 | void | |
78 | test03() | |
79 | { | |
80 | bool test __attribute__((unused)) = true; | |
81 | ||
82 | std::shared_ptr<A> p1(new A()); | |
83 | std::shared_ptr<int> p2(p1, &p1->i); | |
84 | VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); | |
85 | } | |
86 | ||
87 | int | |
88 | main() | |
89 | { | |
90 | test01(); | |
91 | test02(); | |
92 | test03(); | |
93 | return 0; | |
94 | } |