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1 | // 2003-05-20 Paolo Carlini <pcarlini@unitus.it> |
2 | ||
99dee823 | 3 | // Copyright (C) 2003-2021 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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 27.8.1.3 filebuf member functions | |
21 | // @require@ %-*.tst %-*.txt | |
22 | // @diff@ %-*.tst %-*.txt | |
23 | ||
24 | // Test that upon filebuf::close() 27.8.1.1,3 is enforced. | |
25 | ||
26 | #include <fstream> | |
27 | #include <testsuite_hooks.h> | |
28 | ||
29 | const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it | |
30 | const char name_02[] = "filebuf_virtuals-2.txt"; // empty file, need to create | |
31 | ||
32 | bool overflow_called; | |
33 | bool underflow_called; | |
34 | bool uflow_called; | |
35 | ||
36 | class Close_filebuf : public std::filebuf | |
37 | { | |
38 | public: | |
39 | int_type overflow(int_type c) | |
40 | { | |
41 | overflow_called = true; | |
42 | return std::filebuf::overflow(c); | |
43 | } | |
44 | ||
45 | int_type underflow() | |
46 | { | |
47 | underflow_called = true; | |
48 | return std::filebuf::underflow(); | |
49 | } | |
50 | ||
51 | int_type uflow() | |
52 | { | |
53 | uflow_called = true; | |
54 | return std::filebuf::uflow(); | |
55 | } | |
56 | }; | |
57 | ||
58 | void test_05() | |
59 | { | |
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60 | Close_filebuf fb_01, fb_02; |
61 | char buffer[] = "xxxxxxxxxx"; | |
62 | ||
63 | // 'in' | |
64 | fb_01.open(name_01, std::ios_base::in); | |
65 | fb_01.sgetc(); | |
66 | ||
67 | fb_01.close(); | |
68 | ||
69 | underflow_called = false; | |
70 | fb_01.sgetc(); | |
71 | VERIFY( underflow_called == true ); | |
72 | ||
73 | uflow_called = false; | |
74 | fb_01.sbumpc(); | |
75 | VERIFY( uflow_called == true ); | |
76 | ||
77 | uflow_called = false; | |
78 | fb_01.snextc(); | |
79 | VERIFY( uflow_called == true ); | |
80 | ||
81 | uflow_called = false; | |
82 | fb_01.sgetn(buffer, sizeof(buffer)); | |
83 | VERIFY( uflow_called == true ); | |
84 | ||
85 | // 'out' | |
86 | fb_02.open(name_02, std::ios_base::out); | |
87 | ||
88 | fb_02.close(); | |
89 | ||
90 | overflow_called = false; | |
91 | fb_02.sputc('T'); | |
92 | VERIFY( overflow_called == true ); | |
93 | ||
94 | overflow_called = false; | |
95 | fb_02.sputn(buffer, sizeof(buffer)); | |
96 | VERIFY( overflow_called == true ); | |
97 | } | |
98 | ||
99 | int | |
100 | main() | |
101 | { | |
102 | test_05(); | |
103 | return 0; | |
104 | } |