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1 | // 2003-05-01 Petur Runolfsson <peturr02@ru.is> | |
2 | ||
3 | // Copyright (C) 2003-2024 Free Software Foundation, Inc. | |
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 | // { dg-require-fileio "" } | |
21 | ||
22 | #include <ext/stdio_sync_filebuf.h> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | // libstdc++/12048 | |
26 | void test05() | |
27 | { | |
28 | const char* name = "cin_unget-1.txt"; | |
29 | ||
30 | std::FILE* file = std::fopen(name, "r"); | |
31 | __gnu_cxx::stdio_sync_filebuf<char> sbuf(file); | |
32 | char buf[2]; | |
33 | VERIFY( sbuf.sgetn(buf, 2) == 2 ); | |
34 | int c2 = sbuf.sungetc(); | |
35 | VERIFY( c2 != EOF ); | |
36 | int c3 = std::fgetc(file); | |
37 | VERIFY( c3 == std::char_traits<char>::to_int_type(buf[1]) ); | |
38 | ||
39 | std::fclose(file); | |
40 | } | |
41 | ||
42 | int main () | |
43 | { | |
44 | test05(); | |
45 | return 0; | |
46 | } |