// Copyright (C) 2003, 2005, 2009, 2010 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 // . // 27.8.1.4 Overridden virtual functions // { dg-require-fileio "" } #include #include #include #include // libstdc++/12790 void test01() { using namespace std; using __gnu_test::pod_uchar; typedef basic_filebuf::traits_type traits_type; bool test __attribute__((unused)) = true; const char* name = "tmp_seekoff_12790"; locale loc(locale::classic(), new codecvt); basic_filebuf fb; fb.pubsetbuf(0, 0); fb.pubimbue(loc); fb.open(name, ios_base::in | ios_base::out | ios_base::trunc); fb.sputc(pod_uchar::from('b')); fb.sputc(pod_uchar::from(0xff)); // Check that seekoff sets the current state during output fb.pubseekoff(0, ios_base::cur); fb.sputc(pod_uchar::from('a')); fb.sputc(pod_uchar::from(0xff)); fb.sputc(pod_uchar::from(0)); fb.sputc(pod_uchar::from(0)); fb.pubseekoff(0, ios_base::beg); fb.sbumpc(); fb.sbumpc(); 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('a')) ); fb.close(); } int main() { test01(); return 0; }