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748086b7 | 1 | // Copyright (C) 2003, 2005, 2009 Free Software Foundation, Inc. |
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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 | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
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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 | |
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15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
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17 | |
18 | // 27.8.1.4 Overridden virtual functions | |
19 | ||
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20 | // { dg-require-fileio "" } |
21 | ||
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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; | |
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31 | using __gnu_test::pod_uchar; |
32 | typedef basic_filebuf<pod_uchar>::traits_type traits_type; | |
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33 | |
34 | bool test __attribute__((unused)) = true; | |
35 | const char* name = "tmp_seekpos_12790"; | |
36 | ||
37 | locale loc(locale::classic(), | |
38 | new codecvt<traits_type::char_type, char, | |
39 | traits_type::state_type>); | |
40 | ||
821503db | 41 | basic_filebuf<pod_uchar> fb; |
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42 | fb.pubimbue(loc); |
43 | ||
44 | fb.open(name, ios_base::out | ios_base::trunc); | |
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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)); | |
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51 | |
52 | fb.close(); | |
53 | fb.open(name, ios_base::in); | |
54 | ||
55 | fb.sbumpc(); | |
56 | fb.sbumpc(); | |
57 | traits_type::pos_type pos1 = fb.pubseekoff(0, ios_base::cur); | |
58 | fb.sbumpc(); | |
59 | fb.sbumpc(); | |
60 | ||
61 | // Check that seekpos returns the correct state | |
62 | traits_type::pos_type pos2 = fb.pubseekpos(pos1); | |
63 | traits_type::int_type c = fb.sbumpc(); | |
64 | VERIFY( c != traits_type::eof() ); | |
65 | VERIFY( traits_type::eq(traits_type::to_char_type(c), | |
821503db | 66 | pod_uchar::from<char>('a')) ); |
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67 | fb.sbumpc(); |
68 | ||
69 | fb.pubseekpos(pos2); | |
70 | c = fb.sbumpc(); | |
71 | VERIFY( c != traits_type::eof() ); | |
72 | VERIFY( traits_type::eq(traits_type::to_char_type(c), | |
821503db | 73 | pod_uchar::from<char>('a')) ); |
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74 | |
75 | fb.close(); | |
76 | } | |
77 | ||
78 | int main() | |
79 | { | |
80 | test01(); | |
81 | return 0; | |
82 | } |