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fbd26352 | 1 | // Copyright (C) 2003-2019 Free Software Foundation, Inc. |
7cf07491 | 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 | |
6bc9506f | 6 | // Free Software Foundation; either version 3, or (at your option) |
7cf07491 | 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 | |
6bc9506f | 15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
7cf07491 | 17 | |
b14642ed | 18 | // { dg-require-fileio "" } |
19 | ||
7cf07491 | 20 | #include <iostream> |
a54ee4a8 | 21 | #include <cstdio> |
7cf07491 | 22 | #include <testsuite_hooks.h> |
23 | ||
24 | void | |
25 | test01() | |
26 | { | |
34bd3b47 | 27 | VERIFY( std::freopen("cin_unget-1.txt", "r", stdin) ); |
7cf07491 | 28 | |
1d8ef9c8 | 29 | char buf[2]; |
30 | VERIFY( std::cin.rdbuf()->sgetn(buf, 2) == 2 ); | |
31 | int c1 = std::cin.rdbuf()->sungetc(); | |
32 | int c2 = std::cin.rdbuf()->sbumpc(); | |
33 | VERIFY( c1 == std::char_traits<char>::to_int_type(buf[1]) ); | |
34 | VERIFY( c2 == c1 ); | |
7cf07491 | 35 | } |
36 | ||
37 | int main(void) | |
38 | { | |
39 | test01(); | |
40 | return 0; | |
41 | } |