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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/>. | |
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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 | #include <testsuite_io.h> | |
27 | ||
28 | // @require@ %-*.tst %-*.txt | |
29 | // @diff@ %-*.tst %*.txt | |
30 | ||
31 | const char name_01[] = "sgetc.txt"; // file with data in it | |
32 | const char name_03[] = "tmp_sbumpc_2io.tst"; // empty file, need to create | |
33 | ||
34 | void test05() | |
35 | { | |
36 | using namespace std; | |
aecf642c | 37 | using namespace __gnu_test; |
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38 | typedef filebuf::int_type int_type; |
39 | typedef filebuf::traits_type traits_type; | |
40 | ||
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41 | // int_type sbumpc() |
42 | // if read_cur not avail returns uflow(), else return *read_cur & increment | |
43 | ||
44 | // in | out 1 | |
45 | { | |
46 | constraint_filebuf fb_03; | |
47 | fb_03.pubsetbuf(0, 0); | |
48 | fb_03.open(name_03, ios_base::out | ios_base::in | ios_base::trunc); | |
49 | VERIFY( fb_03.unbuffered() ); | |
50 | int_type c5 = fb_03.sbumpc(); | |
51 | VERIFY( c5 == traits_type::eof() ); | |
52 | VERIFY( fb_03.unbuffered() ); | |
53 | } | |
54 | ||
55 | // in | out 2 | |
56 | { | |
57 | constraint_filebuf fb_01; | |
58 | fb_01.pubsetbuf(0, 0); | |
59 | fb_01.open(name_01, ios_base::in | ios_base::out); | |
60 | VERIFY( fb_01.unbuffered() ); | |
61 | ||
62 | int_type c1 = fb_01.sbumpc(); | |
63 | VERIFY( c1 == '/' ); | |
64 | int_type c3 = fb_01.sbumpc(); | |
65 | VERIFY( c3 == '/' ); | |
66 | ||
67 | c1 = fb_01.sgetc(); | |
68 | int_type c2 = fb_01.sbumpc(); | |
69 | c3 = fb_01.sgetc(); | |
70 | VERIFY( c1 == ' ' ); | |
71 | VERIFY( c3 == '9' ); | |
72 | VERIFY( c1 == c2 ); | |
73 | VERIFY( c2 != c3 ); | |
74 | ||
75 | c1 = fb_01.sbumpc(); | |
76 | c2 = fb_01.sbumpc(); | |
77 | c3 = fb_01.sgetc(); | |
78 | VERIFY( c1 == '9' ); | |
79 | VERIFY( c2 == '9' ); | |
80 | VERIFY( c3 == '0' ); | |
81 | ||
82 | VERIFY( fb_01.unbuffered() ); | |
83 | } | |
84 | } | |
85 | ||
11f10e6b | 86 | int main() |
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87 | { |
88 | test05(); | |
89 | return 0; | |
90 | } |