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1 | // Copyright (C) 2001, 2002, 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 | |
83f51799 | 16 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
23cac885 BK |
17 | // USA. |
18 | ||
19 | // 27.8.1.3 filebuf member functions | |
20 | // @require@ %-*.tst %-*.txt | |
21 | // @diff@ %-*.tst %-*.txt | |
22 | ||
23 | // various tests for filebuf::open() and filebuf::close() including | |
24 | // the non-portable functionality in the libstdc++-v3 IO library | |
25 | ||
0c20e4ec NS |
26 | // { dg-require-fileio "" } |
27 | ||
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28 | #include <fstream> |
29 | #include <testsuite_hooks.h> | |
30 | ||
31 | const char name_01[] = "filebuf_members-1.tst"; | |
32 | const char name_02[] = "filebuf_members-1.txt"; | |
33 | ||
34 | // Test member functions. | |
35 | void test_01() | |
36 | { | |
11f10e6b | 37 | bool test __attribute__((unused)) = true; |
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38 | const char* name_03 = "filebuf_members-3"; // empty file, need to create |
39 | ||
40 | std::filebuf fb_01; // in | |
41 | std::filebuf fb_02; // out | |
42 | std::filebuf fb_03; // in | out | |
43 | ||
44 | // bool is_open() | |
45 | VERIFY( !fb_01.is_open() ); | |
46 | VERIFY( !fb_02.is_open() ); | |
47 | VERIFY( !fb_03.is_open() ); | |
48 | ||
49 | // filebuf_type* open(const char* __s, ios_base::openmode __mode) | |
50 | fb_01.open(name_01, std::ios_base::in | std::ios_base::ate); | |
51 | VERIFY( fb_01.is_open() ); | |
52 | ||
53 | // Try to open two different files without closing the first: | |
54 | // Should keep the old file attached, and disregard attempt to overthrow. | |
55 | std::filebuf* f = fb_02.open(name_02, std::ios_base::in | std::ios_base::out | |
56 | | std::ios_base::trunc); | |
57 | VERIFY( f != NULL ); | |
58 | VERIFY( fb_02.is_open() ); | |
59 | ||
60 | f = fb_02.open(name_03, std::ios_base::in | std::ios_base::out); | |
61 | VERIFY( f == NULL ); | |
62 | VERIFY( fb_02.is_open() ); | |
63 | ||
64 | fb_03.open(name_03, std::ios_base::out | std::ios_base::trunc); | |
65 | VERIFY( fb_03.is_open() ); | |
66 | } | |
67 | ||
68 | int | |
69 | main() | |
70 | { | |
71 | test_01(); | |
72 | return 0; | |
73 | } | |
74 | ||
75 |