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7adcbafe | 1 | // Copyright (C) 2003-2022 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 | |
6cec3c81 SL |
18 | // { dg-require-fileio "" } |
19 | ||
73780bfe | 20 | #include <iostream> |
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21 | #include <cstdio> |
22 | #include <cwchar> | |
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23 | #include <testsuite_hooks.h> |
24 | ||
25 | void | |
26 | test01() | |
27 | { | |
820d2ff7 | 28 | VERIFY( std::freopen("cin_unget-1.txt", "r", stdin) ); |
73780bfe | 29 | |
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30 | wchar_t c1; |
31 | std::wint_t c2; | |
32 | std::wcin.get(c1); | |
33 | std::wcin.unget(); | |
34 | VERIFY( std::wcin.good() ); | |
35 | c2 = std::fgetwc(stdin); | |
36 | VERIFY( c2 == std::char_traits<wchar_t>::to_int_type(c1) ); | |
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37 | } |
38 | ||
39 | int main(void) | |
40 | { | |
41 | test01(); | |
42 | return 0; | |
43 | } |