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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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