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7adcbafe | 1 | // Copyright (C) 2020-2022 Free Software Foundation, Inc. |
a186ab67 JW |
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 | // PR libstdc++/97512 | |
22 | // Check that structured bindings work for subranges without <ranges>. | |
23 | #include <algorithm> | |
24 | ||
25 | constexpr bool | |
26 | test01() | |
27 | { | |
28 | int r[] = { 1, 2, 2, 3, 3, 3 }; | |
29 | auto [first, last] = std::ranges::unique(r); | |
30 | return first == std::ranges::begin(r) + 3 && last == std::ranges::end(r); | |
31 | } | |
32 | ||
33 | static_assert( test01() ); |