1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
// 2001-05-21 Benjamin Kosnik <bkoz@redhat.com>
// Copyright (C) 2001-2019 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 27.7.1.3 Overridden virtual functions
// { dg-require-fileio "" }
#include <fstream>
#include <testsuite_hooks.h>
void test02(std::filebuf& in, bool pass)
{
using namespace std;
typedef streambuf::pos_type pos_type;
typedef streambuf::off_type off_type;
pos_type bad = pos_type(off_type(-1));
pos_type p = 0;
// seekoff
p = in.pubseekoff(0, ios_base::beg, ios_base::in);
if (pass)
VERIFY( p != bad );
p = in.pubseekoff(0, ios_base::beg, ios_base::out);
if (pass)
VERIFY( p != bad );
p = in.pubseekoff(0, ios_base::beg);
if (pass)
VERIFY( p != bad );
}
const char name_01[] = "filebuf_virtuals-1.tst"; // file with data in it
const char name_03[] = "filebuf_members-1.tst"; // empty file
int main()
{
using namespace std;
filebuf in1;
in1.open(name_01, ios_base::in | ios_base::out);
filebuf in2;
filebuf in3;
in3.open(name_03, ios_base::in | ios_base::out);
test02(in1, true);
test02(in2, false);
test02(in3, true);
return 0;
}
|
