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1 | // 2001-06-18 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
a945c346 | 3 | // Copyright (C) 2001-2024 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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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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 | ||
16 | // You should have received a copy of the GNU General Public License along | |
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17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 20.3.3 Comparisons | |
21 | ||
22 | #include <functional> | |
23 | ||
24 | class gnu_obj | |
25 | { | |
26 | int i; | |
27 | public: | |
28 | gnu_obj(int arg = 0): i(arg) { } | |
29 | bool operator==(const gnu_obj& rhs) const { return i == rhs.i; } | |
30 | bool operator!=(const gnu_obj& rhs) const { return i != rhs.i; } | |
31 | bool operator<(const gnu_obj& rhs) const { return i < rhs.i; } | |
32 | }; | |
33 | ||
34 | template<typename T> | |
35 | struct gnu_t | |
36 | { | |
37 | bool b; | |
38 | public: | |
39 | gnu_t(bool arg = 0): b(arg) { } | |
40 | bool operator==(const gnu_t& rhs) const { return b == rhs.b; } | |
41 | bool operator!=(const gnu_t& rhs) const { return b != rhs.b; } | |
42 | bool operator<(const gnu_t& rhs) const { return b == rhs.b; } | |
43 | }; | |
44 | ||
45 | template struct std::not_equal_to<void*>; | |
46 | template struct std::not_equal_to<gnu_obj>; | |
47 | template struct std::not_equal_to<gnu_t<long> >; | |
48 | ||
49 | int main() | |
50 | { | |
51 | return 0; | |
52 | } |