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1 | // { dg-options "-std=gnu++17" } |
2 | // { dg-do compile } | |
3 | ||
8d9254fc | 4 | // Copyright (C) 2016-2020 Free Software Foundation, Inc. |
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5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
10 | // any later version. | |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
c7cbb4da | 17 | // You should have received a copy of the GNU General Public License along |
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18 | // with this library; see the file COPYING3. If not see |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | #include <functional> | |
22 | ||
23 | struct X | |
24 | { | |
25 | int operator()() const { return 0; } | |
26 | int operator()() volatile { return 1; } | |
27 | int operator()() const volatile { return 2; } | |
28 | void operator()() { }; | |
29 | }; | |
30 | ||
31 | static_assert( std::is_placeholder<decltype(std::placeholders::_1)>::value | |
32 | == std::is_placeholder_v<decltype(std::placeholders::_1)>); | |
33 | ||
34 | const auto b0 = std::bind(X()); | |
35 | static_assert( std::is_bind_expression<decltype(b0)>::value | |
36 | == std::is_bind_expression_v<decltype(b0)>); | |
37 |