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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 | |
16 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
17 | // USA. | |
18 | ||
19 | // 27.8.1.3 filebuf member functions | |
20 | ||
21 | #include <locale> | |
22 | #include <fstream> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | class Cvt : public std::codecvt<wchar_t, char, std::mbstate_t> | |
26 | { | |
27 | public: | |
28 | mutable bool unshift_called; | |
29 | ||
30 | Cvt() | |
31 | : unshift_called(false) | |
32 | { } | |
33 | ||
34 | protected: | |
35 | bool | |
36 | do_always_noconv() const throw() | |
37 | { return false; } | |
38 | ||
39 | int | |
40 | do_encoding() const throw() | |
41 | { return -1; } | |
42 | ||
43 | std::codecvt_base::result | |
44 | do_unshift(std::mbstate_t&, char* to, char*, char*& to_next) const | |
45 | { | |
46 | unshift_called = true; | |
47 | to_next = to; | |
48 | return std::codecvt_base::ok; | |
49 | } | |
50 | }; | |
51 | ||
52 | // libstdc++/12790 | |
53 | // basic_filebuf::close() should call codecvt::unshift() | |
54 | void test01() | |
55 | { | |
56 | using namespace std; | |
57 | ||
58 | bool test __attribute__((unused)) = true; | |
59 | const char* name = "tmp_close_12790"; | |
60 | ||
61 | Cvt* cvt = new Cvt; | |
62 | locale loc(locale::classic(), cvt); | |
63 | ||
64 | wfilebuf fb; | |
65 | fb.pubimbue(loc); | |
66 | ||
67 | fb.open(name, ios_base::out); | |
68 | fb.sputc(L'a'); | |
69 | ||
70 | VERIFY( !cvt->unshift_called ); | |
71 | fb.close(); | |
72 | VERIFY( cvt->unshift_called ); | |
73 | } | |
74 | ||
75 | int main() | |
76 | { | |
77 | test01(); | |
78 | return 0; | |
79 | } |