1 // Copyright (C) 2003 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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
test01()27 void test01()
28 {
29 using namespace std;
30 using __gnu_test::character;
31 typedef basic_filebuf<character>::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<character> fb;
41 fb.pubimbue(loc);
42
43 fb.open(name, ios_base::out | ios_base::trunc);
44 fb.sputc(character::from_char('b'));
45 fb.sputc(character::from_char(0xff));
46 fb.sputc(character::from_char('a'));
47 fb.sputc(character::from_char(0xfc));
48 fb.sputc(character::from_char(0));
49 fb.sputc(character::from_char(0));
50
51 fb.close();
52 fb.open(name, ios_base::in);
53
54 fb.sbumpc();
55 fb.sbumpc();
56
57 // Check that seekoff returns the correct state
58 traits_type::pos_type pos = fb.pubseekoff(0, ios_base::cur);
59
60 traits_type::int_type c = fb.sbumpc();
61 VERIFY( c != traits_type::eof() );
62 VERIFY( traits_type::eq(traits_type::to_char_type(c),
63 character::from_char('a')) );
64 fb.sbumpc();
65
66 fb.pubseekpos(pos);
67
68 c = fb.sbumpc();
69 VERIFY( c != traits_type::eof() );
70 VERIFY( traits_type::eq(traits_type::to_char_type(c),
71 character::from_char('a')) );
72
73 fb.close();
74 }
75
main()76 int main()
77 {
78 test01();
79 return 0;
80 }
81