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f492015b | 1 | // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
f1717362 | 3 | // Copyright (C) 2001-2016 Free Software Foundation, Inc. |
f492015b | 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 | |
6bc9506f | 8 | // Free Software Foundation; either version 3, or (at your option) |
f492015b | 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 | |
6bc9506f | 17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
f492015b | 19 | |
20 | // 27.8.1.4 Overridden virtual functions | |
21 | ||
b14642ed | 22 | // { dg-require-fileio "" } |
23 | ||
f492015b | 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_sgetc_1io.tst"; // empty file, need to create | |
33 | ||
34 | // Test overloaded virtual functions. | |
35 | void test05() | |
36 | { | |
37 | using namespace std; | |
56dcf3cc | 38 | using namespace __gnu_test; |
f492015b | 39 | typedef std::filebuf::int_type int_type; |
40 | typedef filebuf::traits_type traits_type; | |
41 | ||
f8ef786c | 42 | bool test __attribute__((unused)) = true; |
f492015b | 43 | int_type c1, c2, c3; |
44 | ||
45 | // int_type sgetc() | |
46 | // if read_cur not avail, return uflow(), else return *read_cur | |
47 | ||
48 | // in | out 1 | |
49 | { | |
50 | constraint_filebuf fb_03; // in | out | |
51 | fb_03.open(name_03, ios::out | ios::in | ios::trunc); | |
a6bfe6ae | 52 | VERIFY( !fb_03.write_position() ); |
f492015b | 53 | VERIFY( !fb_03.read_position() ); |
54 | c1 = fb_03.sgetc(); | |
55 | c2 = fb_03.sbumpc(); | |
56 | VERIFY( c1 == traits_type::eof() ); | |
57 | VERIFY( c1 == c2 ); | |
a6bfe6ae | 58 | VERIFY( !fb_03.write_position() ); |
f492015b | 59 | VERIFY( !fb_03.read_position() ); |
60 | } | |
61 | ||
62 | // in | out 2 | |
63 | { | |
64 | constraint_filebuf fb_01; // in | |
65 | fb_01.open(name_01, ios::in | ios::out); | |
a6bfe6ae | 66 | VERIFY( !fb_01.write_position() ); |
f492015b | 67 | c1 = fb_01.sgetc(); |
68 | VERIFY( c1 == '/' ); | |
69 | c2 = fb_01.sgetc(); | |
70 | VERIFY( c1 == c2 ); | |
71 | fb_01.sbumpc(); | |
72 | c1 = fb_01.sbumpc(); | |
73 | c2 = fb_01.sgetc(); | |
74 | c3 = fb_01.sgetc(); | |
75 | VERIFY( c1 == '/' ); | |
76 | VERIFY( c2 == ' ' ); | |
77 | VERIFY( c3 == ' ' ); | |
a6bfe6ae | 78 | VERIFY( !fb_01.write_position() ); |
f492015b | 79 | VERIFY( fb_01.read_position() ); |
80 | } | |
81 | } | |
82 | ||
f8ef786c | 83 | int main() |
f492015b | 84 | { |
85 | test05(); | |
86 | return 0; | |
87 | } |