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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 | ||
0c20e4ec NS |
22 | // { dg-require-fileio "" } |
23 | ||
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24 | #include <fstream> |
25 | #include <testsuite_hooks.h> | |
26 | ||
27 | class testbuf : public std::filebuf | |
28 | { | |
29 | public: | |
30 | ||
31 | // Typedefs: | |
32 | typedef std::filebuf base_type; | |
33 | typedef base_type::traits_type traits_type; | |
34 | typedef base_type::char_type char_type; | |
35 | ||
36 | testbuf(): base_type() | |
37 | { _M_mode = (std::ios_base::in | std::ios_base::out); } | |
38 | ||
39 | bool | |
40 | check_pointers() | |
41 | { | |
fd0bf20c | 42 | bool test = true; |
8fc81078 PC |
43 | test = (!this->pbase()); |
44 | test &= (!this->pptr()); | |
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45 | return test; |
46 | } | |
47 | }; | |
48 | ||
49 | const char name_01[] = "filebuf_virtuals-1.txt"; | |
50 | ||
51 | // Test overloaded virtual functions. | |
52 | void test05() | |
53 | { | |
54 | using namespace std; | |
55 | typedef std::filebuf::int_type int_type; | |
56 | typedef std::filebuf::traits_type traits_type; | |
57 | typedef std::filebuf::pos_type pos_type; | |
58 | typedef std::filebuf::off_type off_type; | |
59 | typedef size_t size_type; | |
60 | ||
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61 | { |
62 | testbuf f_tmp; | |
63 | ||
64 | // setbuf | |
65 | // pubsetbuf(char_type* s, streamsize n) | |
66 | f_tmp.pubsetbuf(0,0); | |
67 | VERIFY( f_tmp.check_pointers() ); | |
68 | } | |
69 | ||
70 | { | |
71 | testbuf f_tmp; | |
72 | ||
73 | f_tmp.open(name_01, ios_base::out | ios_base::in); | |
11f10e6b | 74 | f_tmp.sbumpc(); |
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75 | |
76 | // setbuf | |
77 | // pubsetbuf(char_type* s, streamsize n) | |
78 | f_tmp.pubsetbuf(0, 0); | |
71b46021 | 79 | VERIFY( f_tmp.check_pointers() ); |
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80 | } |
81 | } | |
82 | ||
11f10e6b | 83 | int main() |
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84 | { |
85 | test05(); | |
86 | return 0; | |
87 | } |