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1 | // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
99dee823 | 3 | // Copyright (C) 2001-2021 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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9 | // any later version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
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17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 27.8.1.4 Overridden virtual functions | |
21 | ||
22 | #include <fstream> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | const char name_05[] = "filebuf_virtuals-5.txt"; // empty file, need to create | |
26 | ||
27 | bool over_called; | |
28 | ||
29 | class Derived_filebuf : public std::filebuf | |
30 | { | |
31 | public: | |
32 | int_type overflow(int_type c) | |
33 | { | |
34 | over_called = true; | |
35 | return std::filebuf::overflow(c); | |
36 | } | |
37 | ||
38 | const char_type* pub_epptr() const | |
39 | { return epptr(); } | |
40 | ||
41 | const char_type* pub_pptr() const | |
42 | { return pptr(); } | |
43 | }; | |
44 | ||
45 | // libstdc++/9701 (partial) | |
46 | void test11() | |
47 | { | |
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48 | bool over_expected; |
49 | ||
50 | // sputc | |
51 | Derived_filebuf dfbuf_01; | |
52 | dfbuf_01.open(name_05, std::ios_base::out); | |
53 | over_called = false; | |
54 | dfbuf_01.sputc('i'); | |
71b46021 | 55 | VERIFY( over_called ); |
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56 | over_expected = dfbuf_01.pub_epptr() == dfbuf_01.pub_pptr(); |
57 | over_called = false; | |
58 | dfbuf_01.sputc('v'); | |
59 | VERIFY( (!over_expected && !over_called) | |
60 | || (over_expected && over_called) ); | |
61 | dfbuf_01.close(); | |
62 | } | |
63 | ||
11f10e6b | 64 | int main() |
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65 | { |
66 | test11(); | |
67 | return 0; | |
68 | } |