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1 | // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
7adcbafe | 3 | // Copyright (C) 2001-2022 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 | ||
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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 | ||
33 | void test05() | |
34 | { | |
35 | using namespace std; | |
aecf642c | 36 | using namespace __gnu_test; |
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37 | typedef filebuf::int_type int_type; |
38 | typedef filebuf::traits_type traits_type; | |
39 | ||
11f10e6b | 40 | int_type c1; |
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41 | |
42 | // int_type snextc() | |
43 | // calls sbumpc and if sbumpc != eof, return sgetc | |
44 | ||
45 | // in | |
46 | { | |
47 | constraint_filebuf fb_01; | |
48 | fb_01.pubsetbuf(0, 0); | |
49 | fb_01.open(name_01, ios_base::in); | |
50 | VERIFY( fb_01.unbuffered() ); | |
51 | c1 = fb_01.snextc(); | |
52 | VERIFY( c1 == '/' ); // overflow | |
53 | c1 = fb_01.snextc(); | |
54 | VERIFY( c1 == ' ' ); | |
55 | VERIFY( fb_01.unbuffered() ); | |
56 | } | |
57 | ||
58 | // in | |
59 | { | |
60 | constraint_filebuf fb_01; | |
61 | fb_01.pubsetbuf(0, 0); | |
62 | fb_01.open(name_01, ios_base::in); | |
63 | VERIFY( fb_01.unbuffered() ); | |
64 | int_type c4 = fb_01.sbumpc(); | |
65 | VERIFY( c4 == '/' ); | |
66 | c4 = fb_01.sbumpc(); | |
67 | VERIFY( c4 == '/' ); | |
68 | c4 = fb_01.sgetc(); | |
69 | VERIFY( c4 == ' ' ); | |
70 | c1 = fb_01.snextc(); | |
71 | VERIFY( c1 == '9' ); | |
72 | c4 = fb_01.sgetc(); | |
73 | VERIFY( c4 == '9' ); | |
74 | VERIFY( fb_01.unbuffered() ); | |
75 | } | |
76 | } | |
77 | ||
11f10e6b | 78 | int main() |
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79 | { |
80 | test05(); | |
81 | return 0; | |
82 | } |