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a945c346 | 1 | // Copyright (C) 2019-2024 Free Software Foundation, Inc. |
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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 | ||
7dbb6913 | 18 | // { dg-do compile { target c++20 } } |
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19 | |
20 | #include <algorithm> | |
21 | #include <array> | |
22 | ||
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23 | constexpr bool |
24 | test() | |
25 | { | |
26 | auto ok = true; | |
27 | ||
28 | std::array<int, 12> ar0{{1, 0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; | |
29 | ||
30 | std::prev_permutation(ar0.begin(), ar0.end()); | |
31 | ||
32 | return ok = ar0[0] == 0; | |
33 | } | |
34 | ||
35 | static_assert(test()); |