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8d9254fc | 1 | // Copyright (C) 2007-2020 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 | ||
20 | // { dg-require-fileio "" } | |
21 | ||
22 | #include <fstream> | |
23 | #include <cctype> | |
24 | #include <locale> | |
25 | #include <testsuite_hooks.h> | |
26 | ||
27 | class Mycvtcc | |
28 | : public std::codecvt<char, char, std::mbstate_t> | |
29 | { | |
30 | protected: | |
31 | virtual result | |
32 | do_in(state_type&, | |
33 | const extern_type* from, const extern_type* from_end, | |
34 | const extern_type*& from_next, | |
35 | intern_type* to, intern_type* to_limit, | |
36 | intern_type*& to_next) const | |
37 | { | |
38 | from_next = from, to_next = to; | |
39 | ||
40 | if (from_next == from_end || to_next == to_limit) | |
41 | return partial; | |
42 | ||
43 | if (std::islower(*from_next)) | |
44 | *to_next = std::toupper(*from_next); | |
45 | else | |
46 | *to_next = *from_next; | |
47 | ++from_next, ++to_next; | |
48 | return ok; | |
49 | } | |
50 | ||
51 | virtual bool | |
52 | do_always_noconv() const throw() | |
53 | { return false; } | |
54 | }; | |
55 | ||
56 | // See Novell Bug 255122 | |
57 | void test01() | |
58 | { | |
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59 | using namespace std; |
60 | ||
61 | const char* name = "tmp_underflow_3.tst"; | |
62 | filebuf fbuf, fbufx; | |
63 | ||
64 | fbuf.open(name, ios_base::out | ios_base::trunc); | |
65 | VERIFY( fbuf.sputc('a') == 'a' ); | |
66 | VERIFY( fbuf.sputc('b') == 'b' ); | |
67 | VERIFY( fbuf.sputc('\n') == '\n' ); | |
68 | fbuf.close(); | |
69 | ||
70 | fbufx.pubimbue(locale(locale::classic(), new Mycvtcc)); | |
71 | fbufx.open(name, ios_base::in); | |
72 | VERIFY( fbufx.sbumpc() == 'A' ); | |
73 | VERIFY( fbufx.sbumpc() == 'B' ); | |
74 | VERIFY( fbufx.sbumpc() == '\n' ); | |
75 | VERIFY( fbufx.sbumpc() == filebuf::traits_type::eof() ); | |
76 | fbufx.close(); | |
77 | } | |
78 | ||
79 | int main() | |
80 | { | |
81 | test01(); | |
82 | return 0; | |
83 | } |