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52066eae | 1 | // { dg-do run { target c++14 } } |
261b7e8a | 2 | |
a5544970 | 3 | // Copyright (C) 2015-2019 Free Software Foundation, Inc. |
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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 | |
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 | #include <testsuite_hooks.h> | |
22 | ||
23 | using std::experimental::observer_ptr; | |
24 | ||
25 | struct B {}; | |
26 | struct D : B {}; | |
27 | ||
28 | void test01() | |
29 | { | |
30 | observer_ptr<int> a; | |
31 | VERIFY(std::hash<observer_ptr<int>>{}(a) == std::hash<int*>{}(nullptr)); | |
32 | } | |
33 | ||
34 | void test02() | |
35 | { | |
36 | int x{}; | |
37 | observer_ptr<int> a{&x}; | |
38 | VERIFY(std::hash<observer_ptr<int>>{}(a) == std::hash<int*>{}(&x)); | |
39 | } | |
40 | ||
41 | int main() | |
42 | { | |
43 | test01(); | |
44 | test02(); | |
45 | } |