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1 | // Copyright (C) 2019-2023 Free Software Foundation, Inc. | |
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 | ||
18 | // { dg-options "-std=gnu++2a" } | |
19 | // { dg-do compile { target c++2a } } | |
20 | ||
21 | #include <algorithm> | |
22 | #include <array> | |
23 | ||
24 | constexpr bool | |
25 | test() | |
26 | { | |
27 | auto ok = true; | |
28 | ||
29 | std::array<int, 12> ar0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; | |
30 | ||
31 | std::next_permutation(ar0.begin(), ar0.end()); | |
32 | ||
33 | return ok = ar0[11] == 10 && ar0[10] == 11; | |
34 | } | |
35 | ||
36 | static_assert(test()); |