]>
Commit | Line | Data |
---|---|---|
23cac885 BK |
1 | // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
aa118a03 | 3 | // Copyright (C) 2001-2014 Free Software Foundation, Inc. |
23cac885 BK |
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) |
23cac885 BK |
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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
23cac885 BK |
19 | |
20 | // 27.8.1.4 Overridden virtual functions | |
21 | ||
22 | #include <fstream> | |
23cac885 BK |
23 | #include <testsuite_hooks.h> |
24 | ||
25 | // @require@ %-*.tst %-*.txt | |
26 | // @diff@ %-*.tst %*.txt | |
27 | ||
28 | // NB: This test assumes that _M_buf_size == 40, and not the usual | |
29 | // buffer_size length of BUFSIZ (8192), so that overflow/underflow can be | |
30 | // simulated a bit more readily. | |
31 | // NRB (Nota Really Bene): setting it to 40 breaks the test, as intended. | |
32 | const int buffer_size = 8192; | |
33 | //const int buffer_size = 40; | |
34 | ||
23cac885 BK |
35 | const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it |
36 | const char name_02[] = "filebuf_virtuals-2.txt"; // empty file, need to create | |
37 | const char name_03[] = "filebuf_virtuals-3.txt"; // empty file, need to create | |
23cac885 BK |
38 | |
39 | class derived_filebuf: public std::filebuf | |
40 | { | |
41 | public: | |
42 | void | |
7ef9fd85 | 43 | set_size(int_type __size) { _M_buf_size = __size; } |
23cac885 BK |
44 | }; |
45 | ||
46 | derived_filebuf fb_01; // in | |
47 | derived_filebuf fb_02; // out | |
48 | derived_filebuf fb_03; // in | out | |
49 | ||
50 | // Initialize filebufs to be the same size regardless of platform. | |
51 | void test03() | |
52 | { | |
53 | fb_01.set_size(buffer_size); | |
54 | fb_02.set_size(buffer_size); | |
55 | fb_03.set_size(buffer_size); | |
56 | } | |
57 | ||
58 | // Test overloaded virtual functions. | |
59 | void test05() | |
60 | { | |
61 | typedef std::filebuf::int_type int_type; | |
62 | typedef std::filebuf::traits_type traits_type; | |
63 | typedef std::filebuf::pos_type pos_type; | |
64 | typedef std::filebuf::off_type off_type; | |
65 | typedef size_t size_type; | |
66 | ||
11f10e6b | 67 | bool test __attribute__((unused)) = true; |
23cac885 | 68 | std::filebuf f_tmp; |
23cac885 BK |
69 | |
70 | fb_01.open(name_01, std::ios_base::in); | |
71 | fb_02.open(name_02, std::ios_base::out | std::ios_base::trunc); | |
72 | fb_03.open(name_03, std::ios_base::out | std::ios_base::in | std::ios_base::trunc); | |
73 | ||
74 | // NB Have to close these suckers. . . | |
75 | // filebuf_type* close() | |
76 | fb_01.close(); | |
77 | fb_02.close(); | |
78 | fb_03.close(); | |
79 | VERIFY( !fb_01.is_open() ); | |
80 | VERIFY( !fb_02.is_open() ); | |
81 | VERIFY( !fb_03.is_open() ); | |
82 | } | |
83 | ||
11f10e6b | 84 | int main() |
23cac885 BK |
85 | { |
86 | test03(); | |
87 | test05(); | |
88 | return 0; | |
89 | } |