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52066eae | 1 | // { dg-do compile { target c++14 } } |
261b7e8a | 2 | |
a945c346 | 3 | // Copyright (C) 2015-2024 Free Software Foundation, Inc. |
261b7e8a VV |
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 | ||
c7cbb4da | 16 | // You should have received a copy of the GNU General Public License along |
261b7e8a VV |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | #include <experimental/memory> | |
21 | ||
22 | using std::experimental::observer_ptr; | |
23 | ||
24 | struct nontrivial {nontrivial() {}}; | |
25 | struct other {}; | |
26 | struct base {}; | |
27 | struct derived : base {}; | |
28 | ||
29 | static_assert(!std::is_trivially_constructible< | |
30 | observer_ptr<nontrivial>>::value, ""); | |
31 | static_assert(std::is_trivially_copyable< | |
32 | observer_ptr<nontrivial>>::value, ""); | |
33 | static_assert(std::is_trivially_destructible< | |
34 | observer_ptr<nontrivial>>::value, ""); | |
35 | ||
36 | static_assert(std::is_constructible< | |
37 | observer_ptr<nontrivial>, nontrivial*>::value, | |
38 | ""); | |
39 | static_assert(std::is_constructible<observer_ptr<base>, base*>::value, ""); | |
40 | static_assert(std::is_constructible<observer_ptr<base>, derived*>::value, ""); | |
41 | static_assert(!std::is_constructible<observer_ptr<base>, other*>::value, ""); | |
42 | static_assert(std::is_constructible< | |
43 | observer_ptr<base>, observer_ptr<base>>::value, ""); | |
44 | static_assert(std::is_constructible< | |
45 | observer_ptr<base>, observer_ptr<derived>>::value, ""); | |
46 | static_assert(!std::is_constructible< | |
47 | observer_ptr<base>, observer_ptr<other>>::value, ""); | |
48 | ||
49 | static_assert(!std::is_assignable< | |
50 | observer_ptr<nontrivial>, nontrivial*>::value, | |
51 | ""); | |
52 | static_assert(std::is_assignable< | |
53 | observer_ptr<nontrivial>, observer_ptr<nontrivial>>::value, | |
54 | ""); | |
55 | static_assert(std::is_assignable<observer_ptr<base>, | |
56 | observer_ptr<base>>::value, ""); | |
57 | static_assert(std::is_assignable<observer_ptr<base>, | |
58 | observer_ptr<derived>>::value, ""); | |
59 | static_assert(!std::is_assignable< | |
60 | observer_ptr<base>, observer_ptr<other>>::value, ""); | |
61 | static_assert(std::is_assignable<observer_ptr<const int>, | |
62 | observer_ptr<int>>::value, ""); | |
63 | static_assert(!std::is_assignable<observer_ptr<int>, | |
64 | observer_ptr<const int>>::value, ""); |