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99dee823 | 1 | // Copyright (C) 2003-2021 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 | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
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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 | |
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15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
73780bfe | 17 | |
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18 | // { dg-require-fileio "" } |
19 | ||
73780bfe | 20 | #include <iostream> |
4c620c39 | 21 | #include <cstdio> |
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22 | #include <testsuite_hooks.h> |
23 | ||
24 | void | |
25 | test01() | |
26 | { | |
820d2ff7 | 27 | VERIFY( std::freopen("cin_unget-1.txt", "r", stdin) ); |
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28 | |
29 | char c1; | |
4c620c39 | 30 | int c2; |
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31 | std::cin.get(c1); |
32 | std::cin.unget(); | |
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33 | VERIFY( std::cin.good() ); |
34 | c2 = std::fgetc(stdin); | |
35 | VERIFY( c2 == std::char_traits<char>::to_int_type(c1) ); | |
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36 | } |
37 | ||
38 | int main(void) | |
39 | { | |
40 | test01(); | |
41 | return 0; | |
42 | } |