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23cac885 | 1 | // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
53279c10 | 2 | |
a5544970 | 3 | // Copyright (C) 2001-2019 Free Software Foundation, Inc. |
53279c10 JQ |
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) |
53279c10 JQ |
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/>. | |
53279c10 | 19 | |
23cac885 BK |
20 | // 27.8.1.4 Overridden virtual functions |
21 | ||
22 | #include <fstream> | |
53279c10 | 23 | #include <testsuite_hooks.h> |
46c4e5d6 | 24 | #include <testsuite_io.h> |
53279c10 | 25 | |
46c4e5d6 BK |
26 | // @require@ %-*.tst %-*.txt |
27 | // @diff@ %-*.tst %*.txt | |
53279c10 | 28 | |
46c4e5d6 BK |
29 | const char name_02[] = "tmp_sgetc_2out.tst"; // empty file, need to create |
30 | ||
31 | // Test overloaded virtual functions. | |
32 | void test05() | |
53279c10 JQ |
33 | { |
34 | using namespace std; | |
aecf642c | 35 | using namespace __gnu_test; |
46c4e5d6 BK |
36 | typedef std::filebuf::int_type int_type; |
37 | typedef filebuf::traits_type traits_type; | |
38 | ||
11f10e6b | 39 | int_type c1, c2; |
46c4e5d6 BK |
40 | |
41 | // int_type sgetc() | |
42 | // if read_cur not avail, return uflow(), else return *read_cur | |
53279c10 | 43 | |
46c4e5d6 BK |
44 | // out |
45 | { | |
46 | constraint_filebuf fb_02; // out | |
47 | fb_02.pubsetbuf(0, 0); | |
48 | fb_02.open(name_02, ios::out | ios::trunc); | |
49 | VERIFY( fb_02.unbuffered() ); | |
50 | VERIFY( !fb_02.read_position() ); | |
51 | c1 = fb_02.sgetc(); | |
52 | VERIFY( c1 == traits_type::eof() ); | |
53 | c2 = fb_02.sgetc(); | |
54 | VERIFY( c2 == traits_type::eof() ); | |
55 | fb_02.sbumpc(); | |
56 | c1 = fb_02.sbumpc(); | |
57 | c2 = fb_02.sgetc(); | |
58 | VERIFY( c1 == c2 ); | |
59 | VERIFY( fb_02.unbuffered() ); | |
60 | VERIFY( !fb_02.read_position() ); | |
61 | } | |
53279c10 JQ |
62 | } |
63 | ||
11f10e6b | 64 | int main() |
53279c10 | 65 | { |
46c4e5d6 | 66 | test05(); |
53279c10 JQ |
67 | return 0; |
68 | } |