| // Copyright (C) 2017-2023 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 3, 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 COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-require-fileio "" } |
| |
| #include <ext/stdio_filebuf.h> |
| #include <cstdio> |
| #include <cerrno> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| FILE* out = std::fopen("81751.txt", "w"); |
| std::fwrite("Some words.", 1, 10, out); |
| |
| FILE* in1 = std::fopen("81751.txt", "r"); |
| __gnu_cxx::stdio_filebuf<char> buf1(in1, std::ios::in, BUFSIZ); |
| int c = buf1.sgetc(); |
| VERIFY( c == std::char_traits<char>::eof() ); // PR libstdc++/81751 |
| |
| std::fflush(out); |
| FILE* in2 = std::fopen("81751.txt", "r"); |
| __gnu_cxx::stdio_filebuf<char> buf2(in2, std::ios::in, BUFSIZ); |
| c = buf2.sgetc(); |
| VERIFY( c == 'S' ); |
| |
| buf1.close(); |
| buf2.close(); |
| std::fclose(in1); |
| std::fclose(in2); |
| std::fclose(out); |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| } |