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7adcbafe | 1 | // Copyright (C) 2005-2022 Free Software Foundation, Inc. |
7dfded91 JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
7dfded91 JW |
7 | // any later version. |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
748086b7 JJ |
15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
7dfded91 JW |
17 | |
18 | // TR1 2.2.2 Template class shared_ptr [tr.util.smartptr.shared] | |
19 | ||
20 | #include <tr1/memory> | |
21 | #include <testsuite_hooks.h> | |
22 | ||
23 | struct A | |
24 | { | |
25 | virtual ~A() { } | |
26 | }; | |
27 | ||
28 | struct B : A | |
29 | { | |
30 | }; | |
31 | ||
32 | // 2.2.3.6 shared_ptr comparison [tr.util.smartptr.shared.cmp] | |
33 | ||
34 | int | |
35 | test01() | |
36 | { | |
37 | // test empty shared_ptrs compare equivalent | |
38 | std::tr1::shared_ptr<A> p1; | |
39 | std::tr1::shared_ptr<B> p2; | |
40 | VERIFY( p1 == p2 ); | |
41 | VERIFY( !(p1 != p2) ); | |
42 | VERIFY( !(p1 < p2) && !(p2 < p1) ); | |
43 | return 0; | |
44 | } | |
45 | ||
46 | ||
47 | // Construction from pointer | |
48 | int | |
49 | test02() | |
50 | { | |
51 | std::tr1::shared_ptr<A> A_default; | |
52 | ||
53 | std::tr1::shared_ptr<A> A_from_A(new A); | |
54 | VERIFY( A_default != A_from_A ); | |
55 | VERIFY( !(A_default == A_from_A) ); | |
56 | VERIFY( (A_default < A_from_A) || (A_from_A < A_default) ); | |
57 | ||
58 | std::tr1::shared_ptr<B> B_from_B(new B); | |
59 | VERIFY( B_from_B != A_from_A ); | |
60 | VERIFY( !(B_from_B == A_from_A) ); | |
61 | VERIFY( (B_from_B < A_from_A) || (A_from_A < B_from_B) ); | |
62 | ||
63 | A_from_A.reset(); | |
64 | VERIFY( A_default == A_from_A ); | |
65 | VERIFY( !(A_default != A_from_A) ); | |
66 | VERIFY( !(A_default < A_from_A) && !(A_from_A < A_default) ); | |
67 | ||
68 | B_from_B.reset(); | |
69 | VERIFY( B_from_B == A_from_A ); | |
70 | VERIFY( !(B_from_B != A_from_A) ); | |
71 | VERIFY( !(B_from_B < A_from_A) && !(A_from_A < B_from_B) ); | |
72 | ||
73 | return 0; | |
74 | } | |
75 | ||
f92ab29f | 76 | int |
7dfded91 JW |
77 | main() |
78 | { | |
79 | test01(); | |
80 | test02(); | |
81 | return 0; | |
82 | } |