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1 | // { dg-options "-std=gnu++0x" } |
2 | ||
748086b7 | 3 | // Copyright (C) 2008, 2009 Free Software Foundation |
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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 | // 20.8.13.3 Template class weak_ptr [util.smartptr.weak] | |
21 | ||
22 | #include <memory> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | struct A { }; | |
26 | struct B { }; | |
27 | ||
28 | // 20.6.6.3.5 weak_ptr observers [util.smartptr.weak.obs] | |
29 | ||
30 | int | |
31 | test01() | |
32 | { | |
33 | // test empty weak_ptrs compare equivalent | |
34 | std::weak_ptr<A> p1; | |
35 | std::weak_ptr<B> p2; | |
36 | VERIFY( !p1.owner_before(p2) && !p2.owner_before(p1) ); | |
37 | ||
38 | std::shared_ptr<B> p3; | |
39 | VERIFY( !p1.owner_before(p3) && !p3.owner_before(p1) ); | |
40 | ||
41 | return 0; | |
42 | } | |
43 | ||
44 | ||
45 | int | |
46 | test02() | |
47 | { | |
48 | std::shared_ptr<A> a0; | |
49 | std::weak_ptr<A> w0(a0); | |
50 | ||
51 | std::shared_ptr<A> a1(new A); | |
52 | std::weak_ptr<A> w1(a1); | |
53 | VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) ); | |
54 | ||
55 | VERIFY( w1.owner_before(w0) || w0.owner_before(w1) ); | |
56 | VERIFY( !(w1.owner_before(w0) && w0.owner_before(w1)) ); | |
57 | ||
58 | VERIFY( w1.owner_before(a0) || a0.owner_before(w1) ); | |
59 | VERIFY( !(w1.owner_before(a0) && a0.owner_before(w1)) ); | |
60 | ||
61 | std::shared_ptr<B> b1(new B); | |
62 | VERIFY( w1.owner_before(b1) || b1.owner_before(w1) ); | |
63 | ||
64 | return 0; | |
65 | } | |
66 | ||
67 | int | |
68 | main() | |
69 | { | |
70 | test01(); | |
71 | test02(); | |
72 | return 0; | |
73 | } |