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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 | |
83f51799 | 16 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
5e93f39f PR |
17 | // USA. |
18 | ||
0c20e4ec NS |
19 | // { dg-require-fileio "" } |
20 | ||
5e93f39f PR |
21 | // 27.8.1.3 filebuf member functions |
22 | ||
23 | #include <locale> | |
24 | #include <fstream> | |
25 | #include <testsuite_hooks.h> | |
26 | ||
27 | class Cvt : public std::codecvt<char, char, std::mbstate_t> | |
28 | { | |
29 | public: | |
30 | mutable bool unshift_called; | |
31 | ||
32 | Cvt() | |
33 | : unshift_called(false) | |
34 | { } | |
35 | ||
36 | protected: | |
37 | bool | |
38 | do_always_noconv() const throw() | |
39 | { return false; } | |
40 | ||
41 | int | |
42 | do_encoding() const throw() | |
43 | { return -1; } | |
44 | ||
45 | std::codecvt_base::result | |
46 | do_unshift(std::mbstate_t&, char* to, char*, char*& to_next) const | |
47 | { | |
48 | unshift_called = true; | |
49 | to_next = to; | |
50 | return std::codecvt_base::ok; | |
51 | } | |
52 | }; | |
53 | ||
54 | // libstdc++/12790 | |
55 | // basic_filebuf::close() should call codecvt::unshift() | |
56 | void test01() | |
57 | { | |
58 | using namespace std; | |
59 | ||
60 | bool test __attribute__((unused)) = true; | |
61 | const char* name = "tmp_close_12790"; | |
62 | ||
63 | Cvt* cvt = new Cvt; | |
64 | locale loc(locale::classic(), cvt); | |
65 | ||
66 | filebuf fb; | |
67 | fb.pubimbue(loc); | |
68 | ||
69 | fb.open(name, ios_base::out); | |
70 | fb.sputc('a'); | |
71 | fb.pubsync(); // Does not call unshift() | |
72 | ||
73 | VERIFY( !cvt->unshift_called ); | |
74 | fb.close(); | |
75 | VERIFY( cvt->unshift_called ); | |
76 | } | |
77 | ||
78 | int main() | |
79 | { | |
80 | test01(); | |
81 | return 0; | |
82 | } |