| // Copyright (C) 2003, 2005 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 <locale> |
| #include <fstream> |
| #include <testsuite_hooks.h> |
| #include <testsuite_character.h> |
| |
| // libstdc++/12790 |
| void test01() |
| { |
| using namespace std; |
| using __gnu_test::pod_uchar; |
| typedef basic_filebuf<pod_uchar>::traits_type traits_type; |
| |
| bool test __attribute__((unused)) = true; |
| const char* name = "tmp_seekoff_12790"; |
| |
| locale loc(locale::classic(), |
| new codecvt<traits_type::char_type, char, |
| traits_type::state_type>); |
| |
| basic_filebuf<pod_uchar> fb; |
| fb.pubimbue(loc); |
| |
| fb.open(name, ios_base::out | ios_base::trunc); |
| fb.sputc(pod_uchar::from<char>('b')); |
| fb.sputc(pod_uchar::from<char>(0xff)); |
| fb.sputc(pod_uchar::from<char>('a')); |
| fb.sputc(pod_uchar::from<char>(0xfc)); |
| fb.sputc(pod_uchar::from<char>(0)); |
| fb.sputc(pod_uchar::from<char>(0)); |
| |
| fb.close(); |
| fb.open(name, ios_base::in); |
| |
| fb.sbumpc(); |
| fb.sbumpc(); |
| |
| // Check that seekoff returns the correct state |
| traits_type::pos_type pos = fb.pubseekoff(0, ios_base::cur); |
| |
| traits_type::int_type c = fb.sbumpc(); |
| VERIFY( c != traits_type::eof() ); |
| VERIFY( traits_type::eq(traits_type::to_char_type(c), |
| pod_uchar::from<char>('a')) ); |
| fb.sbumpc(); |
| |
| fb.pubseekpos(pos); |
| |
| c = fb.sbumpc(); |
| VERIFY( c != traits_type::eof() ); |
| VERIFY( traits_type::eq(traits_type::to_char_type(c), |
| pod_uchar::from<char>('a')) ); |
| |
| fb.close(); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |