]>
Commit | Line | Data |
---|---|---|
fbd26352 | 1 | // Copyright (C) 2015-2019 Free Software Foundation, Inc. |
72b0dfe1 | 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 | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
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 | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
3d20c2fe | 18 | // { dg-do compile { target c++11 } } |
72b0dfe1 | 19 | // { dg-require-atomic-builtins "" } |
20 | // { dg-require-cstdint "" } | |
72b0dfe1 | 21 | |
22 | #include <atomic> | |
23 | #include <cstdint> | |
24 | ||
25 | using std::int32_t; | |
26 | using std::int64_t; | |
27 | ||
28 | // libstdc++/62259 | |
29 | ||
30 | struct twoints { | |
31 | int32_t a; | |
32 | int32_t b; | |
33 | }; | |
34 | ||
8715f415 | 35 | static_assert( alignof(std::atomic<twoints>) >= alignof(int64_t), |
72b0dfe1 | 36 | "std::atomic not suitably aligned" ); |
37 | ||
38 | // libstdc++/65147 | |
39 | ||
40 | struct power_of_two_obj { | |
41 | char c [8]; | |
42 | }; | |
43 | ||
44 | std::atomic<power_of_two_obj> obj1; | |
45 | ||
70834fa4 | 46 | static_assert( __alignof__(obj1) >= alignof(int64_t), |
72b0dfe1 | 47 | "std::atomic not suitably aligned" ); |
48 | ||
49 | struct container_struct { | |
50 | char c[1]; | |
51 | std::atomic<power_of_two_obj> ao; | |
52 | }; | |
53 | ||
54 | container_struct obj2; | |
55 | ||
70834fa4 | 56 | static_assert( __alignof__(obj2.ao) >= alignof(int64_t), |
72b0dfe1 | 57 | "std::atomic not suitably aligned" ); |