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| 1 // Copyright (C) 2003, 2005, 2009 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 3, 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 COPYING3. If not see | |
| 16 // <http://www.gnu.org/licenses/>. | |
| 17 | |
| 18 // 27.8.1.4 Overridden virtual functions | |
| 19 | |
| 20 // { dg-require-fileio "" } | |
| 21 | |
| 22 #include <locale> | |
| 23 #include <fstream> | |
| 24 #include <testsuite_hooks.h> | |
| 25 #include <testsuite_character.h> | |
| 26 | |
| 27 // libstdc++/12790 | |
| 28 void test01() | |
| 29 { | |
| 30 using namespace std; | |
| 31 using __gnu_test::pod_uchar; | |
| 32 typedef basic_filebuf<pod_uchar>::traits_type traits_type; | |
| 33 | |
| 34 bool test __attribute__((unused)) = true; | |
| 35 const char* name = "tmp_seekoff_12790"; | |
| 36 | |
| 37 locale loc(locale::classic(), | |
| 38 new codecvt<traits_type::char_type, char, | |
| 39 traits_type::state_type>); | |
| 40 | |
| 41 basic_filebuf<pod_uchar> fb; | |
| 42 fb.pubimbue(loc); | |
| 43 | |
| 44 fb.open(name, ios_base::out | ios_base::trunc); | |
| 45 fb.sputc(pod_uchar::from<char>('b')); | |
| 46 fb.sputc(pod_uchar::from<char>(0xff)); | |
| 47 fb.sputc(pod_uchar::from<char>('a')); | |
| 48 fb.sputc(pod_uchar::from<char>(0xfc)); | |
| 49 fb.sputc(pod_uchar::from<char>(0)); | |
| 50 fb.sputc(pod_uchar::from<char>(0)); | |
| 51 | |
| 52 fb.close(); | |
| 53 fb.open(name, ios_base::in); | |
| 54 | |
| 55 fb.sbumpc(); | |
| 56 fb.sbumpc(); | |
| 57 | |
| 58 // Check that seekoff returns the correct state | |
| 59 traits_type::pos_type pos = fb.pubseekoff(0, ios_base::cur); | |
| 60 | |
| 61 traits_type::int_type c = fb.sbumpc(); | |
| 62 VERIFY( c != traits_type::eof() ); | |
| 63 VERIFY( traits_type::eq(traits_type::to_char_type(c), | |
| 64 pod_uchar::from<char>('a')) ); | |
| 65 fb.sbumpc(); | |
| 66 | |
| 67 fb.pubseekpos(pos); | |
| 68 | |
| 69 c = fb.sbumpc(); | |
| 70 VERIFY( c != traits_type::eof() ); | |
| 71 VERIFY( traits_type::eq(traits_type::to_char_type(c), | |
| 72 pod_uchar::from<char>('a')) ); | |
| 73 | |
| 74 fb.close(); | |
| 75 } | |
| 76 | |
| 77 int main() | |
| 78 { | |
| 79 test01(); | |
| 80 return 0; | |
| 81 } | |
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