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1 | // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
a945c346 | 3 | // Copyright (C) 2001-2024 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/>. | |
46c4e5d6 | 19 | |
dfd07532 | 20 | // C++98 27.8.1.4 Overridden virtual functions |
46c4e5d6 | 21 | |
0c20e4ec | 22 | // { dg-require-fileio "" } |
dfd07532 | 23 | // { dg-additional-files "sgetc.txt" } |
0c20e4ec | 24 | |
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25 | #include <fstream> |
26 | #include <testsuite_hooks.h> | |
27 | #include <testsuite_io.h> | |
28 | ||
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29 | const char name_01[] = "sgetc.txt"; // file with data in it |
30 | const char name_03[] = "tmp_sgetc_1io.tst"; // empty file, need to create | |
31 | ||
32 | // Test overloaded virtual functions. | |
33 | void test05() | |
34 | { | |
35 | using namespace std; | |
aecf642c | 36 | using namespace __gnu_test; |
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37 | typedef std::filebuf::int_type int_type; |
38 | typedef filebuf::traits_type traits_type; | |
39 | ||
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40 | int_type c1, c2, c3; |
41 | ||
42 | // int_type sgetc() | |
43 | // if read_cur not avail, return uflow(), else return *read_cur | |
44 | ||
45 | // in | out 1 | |
46 | { | |
47 | constraint_filebuf fb_03; // in | out | |
48 | fb_03.open(name_03, ios::out | ios::in | ios::trunc); | |
71b46021 | 49 | VERIFY( !fb_03.write_position() ); |
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50 | VERIFY( !fb_03.read_position() ); |
51 | c1 = fb_03.sgetc(); | |
52 | c2 = fb_03.sbumpc(); | |
53 | VERIFY( c1 == traits_type::eof() ); | |
54 | VERIFY( c1 == c2 ); | |
71b46021 | 55 | VERIFY( !fb_03.write_position() ); |
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56 | VERIFY( !fb_03.read_position() ); |
57 | } | |
58 | ||
59 | // in | out 2 | |
60 | { | |
61 | constraint_filebuf fb_01; // in | |
62 | fb_01.open(name_01, ios::in | ios::out); | |
71b46021 | 63 | VERIFY( !fb_01.write_position() ); |
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64 | c1 = fb_01.sgetc(); |
65 | VERIFY( c1 == '/' ); | |
66 | c2 = fb_01.sgetc(); | |
67 | VERIFY( c1 == c2 ); | |
68 | fb_01.sbumpc(); | |
69 | c1 = fb_01.sbumpc(); | |
70 | c2 = fb_01.sgetc(); | |
71 | c3 = fb_01.sgetc(); | |
72 | VERIFY( c1 == '/' ); | |
73 | VERIFY( c2 == ' ' ); | |
74 | VERIFY( c3 == ' ' ); | |
71b46021 | 75 | VERIFY( !fb_01.write_position() ); |
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76 | VERIFY( fb_01.read_position() ); |
77 | } | |
78 | } | |
79 | ||
11f10e6b | 80 | int main() |
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81 | { |
82 | test05(); | |
83 | return 0; | |
84 | } |