1// Copyright (C) 2003, 2005 Free Software Foundation, Inc. 2// 3// This file is part of the GNU ISO C++ Library. This library is free 4// software; you can redistribute it and/or modify it under the 5// terms of the GNU General Public License as published by the 6// Free Software Foundation; either version 2, or (at your option) 7// any later version. 8 9// This library is distributed in the hope that it will be useful, 10// but WITHOUT ANY WARRANTY; without even the implied warranty of 11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12// GNU General Public License for more details. 13 14// You should have received a copy of the GNU General Public License along 15// with this library; see the file COPYING. If not, write to the Free 16// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 17// USA. 18 19// 27.8.1.4 Overridden virtual functions 20 21#include <locale> 22#include <fstream> 23#include <testsuite_hooks.h> 24#include <testsuite_character.h> 25 26// libstdc++/12790 27void test01() 28{ 29 using namespace std; 30 using __gnu_test::pod_uchar; 31 typedef basic_filebuf<pod_uchar>::traits_type traits_type; 32 33 bool test __attribute__((unused)) = true; 34 const char* name = "tmp_seekoff_12790"; 35 36 locale loc(locale::classic(), 37 new codecvt<traits_type::char_type, char, 38 traits_type::state_type>); 39 40 basic_filebuf<pod_uchar> fb; 41 fb.pubimbue(loc); 42 43 fb.open(name, ios_base::out); 44 fb.sputc(pod_uchar::from<char>(0xff)); 45 fb.sputc(pod_uchar::from<char>(0)); 46 fb.sputc(pod_uchar::from<char>(0)); 47 fb.sputc(pod_uchar::from<char>('a')); 48 fb.sputc(pod_uchar::from<char>('a')); 49 fb.sputc(pod_uchar::from<char>('a')); 50 fb.sputc(pod_uchar::from<char>('a')); 51 fb.close(); 52 53 fb.open(name, ios_base::in); 54 fb.sbumpc(); 55 fb.sbumpc(); 56 fb.sbumpc(); 57 58 // Check that seekoff calls codecvt::length with the correct state. 59 traits_type::pos_type pos = fb.pubseekoff(0, ios_base::cur); 60 VERIFY( pos != traits_type::pos_type(traits_type::off_type(-1)) ); 61 62 traits_type::int_type c = fb.sbumpc(); 63 VERIFY( c != traits_type::eof() ); 64 VERIFY( traits_type::eq(traits_type::to_char_type(c), 65 pod_uchar::from<char>('a')) ); 66 fb.sbumpc(); 67 fb.sbumpc(); 68 c = fb.sbumpc(); 69 VERIFY( c != traits_type::eof() ); 70 VERIFY( traits_type::eq(traits_type::to_char_type(c), 71 pod_uchar::from<char>('a')) ); 72 c = fb.sbumpc(); 73 VERIFY( c == traits_type::eof() ); 74 75 fb.close(); 76} 77 78int main() 79{ 80 test01(); 81 return 0; 82} 83