| // Copyright (C) 2003 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 27.8.1.4 Overridden virtual functions |
| |
| #include <fstream> |
| #include <cstdio> |
| #include <cstring> |
| #include <testsuite_hooks.h> |
| |
| // libstdc++/12875 |
| void test01() |
| { |
| using namespace std; |
| bool test __attribute__((unused)) = true; |
| |
| const char* name = "tmp_setbuf4"; |
| static char buf[1024]; |
| |
| FILE* out = fopen(name, "w"); |
| fputs("Hello, world", out); |
| fclose(out); |
| |
| filebuf in; |
| in.open(name, ios_base::in); |
| char str[256]; |
| streamsize r = in.sgetn(str, 6); |
| VERIFY( r == 6 ); |
| VERIFY( !memcmp(str, "Hello,", 6) ); |
| in.pubsetbuf(buf, 1024); |
| r = in.sgetn(str, 6); |
| VERIFY( r == 6 ); |
| VERIFY( !memcmp(str, " world", 6) ); |
| in.close(); |
| } |
| |
| // libstdc++/12875 |
| int main() |
| { |
| test01(); |
| return 0; |
| } |