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762baaf0 | 1 | // { dg-do run { target c++20 } } |
86119f14 | 2 | |
a945c346 | 3 | // Copyright (C) 2020-2024 Free Software Foundation, Inc. |
86119f14 JW |
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 | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
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 | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | #include <iterator> | |
21 | #include <sstream> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | void | |
25 | test01() | |
26 | { | |
27 | static_assert( std::sentinel_for<std::default_sentinel_t, | |
28 | std::istreambuf_iterator<char>> ); | |
29 | ||
30 | std::istreambuf_iterator<char> i = std::default_sentinel; | |
31 | VERIFY( i == std::default_sentinel ); | |
32 | VERIFY( std::default_sentinel == i ); | |
33 | } | |
34 | ||
35 | void | |
36 | test02() | |
37 | { | |
38 | std::istringstream in("abc"); | |
39 | std::istreambuf_iterator<char> iter(in); | |
40 | VERIFY( iter != std::default_sentinel ); | |
41 | VERIFY( std::default_sentinel != iter ); | |
42 | ||
240b01b0 | 43 | (void) std::next(iter, 3); |
86119f14 JW |
44 | VERIFY( iter == std::default_sentinel ); |
45 | VERIFY( std::default_sentinel == iter ); | |
46 | } | |
47 | ||
48 | int main() | |
49 | { | |
50 | test01(); | |
51 | test02(); | |
52 | } |