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8d9254fc | 1 | // Copyright (C) 2019-2020 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 | ||
18 | // { dg-options "-std=gnu++2a" } | |
19 | // { dg-do compile { target c++2a } } | |
20 | ||
21 | #include <algorithm> | |
22 | #include <array> | |
23 | ||
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24 | constexpr bool |
25 | test() | |
26 | { | |
27 | constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}}; | |
28 | constexpr std::array<int, 12> cas{{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}}; | |
29 | std::array<int, 24> out0{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}}; | |
30 | ||
31 | const auto outxx = std::set_intersection(ca0.begin(), ca0.end(), | |
32 | cas.begin(), cas.end(), | |
33 | out0.begin()); | |
34 | ||
35 | const auto outyy = std::set_intersection(ca0.begin(), ca0.end(), | |
36 | cas.begin(), cas.end(), | |
37 | out0.begin(), std::less<int>()); | |
38 | ||
8c84486b | 39 | return outxx == (out0.begin() + 9) && outyy == outxx; |
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40 | } |
41 | ||
42 | static_assert(test()); |