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42134429 | 1 | // 2003-05-01 Petur Runolfsson <peturr02@ru.is> |
dfc7d899 | 2 | |
99dee823 | 3 | // Copyright (C) 2003-2021 Free Software Foundation, Inc. |
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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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
dfc7d899 PC |
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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
dfc7d899 | 19 | |
0c20e4ec NS |
20 | // { dg-require-fileio "" } |
21 | ||
42134429 | 22 | #include <ext/stdio_sync_filebuf.h> |
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23 | #include <testsuite_hooks.h> |
24 | ||
42134429 BK |
25 | // libstdc++/12048 |
26 | void test03() | |
27 | { | |
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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 | int c1 = sbuf.sbumpc(); | |
33 | VERIFY( c1 != EOF ); | |
34 | int c2 = sbuf.sungetc(); | |
35 | VERIFY( c2 != EOF ); | |
36 | int c3 = std::fgetc(file); | |
37 | VERIFY( c3 == c1 ); | |
38 | ||
39 | std::fclose(file); | |
40 | } | |
dfc7d899 | 41 | |
42134429 | 42 | int main () |
dfc7d899 | 43 | { |
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44 | test03(); |
45 | return 0; | |
46 | } |