blob: eebebc20e3023dd2f250a012f11cdc9271ef7c3d (
plain)
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
66
67
68
69
70
71
72
73
74
75
|
// 2003-05-01 Petur Runolfsson <peturr02@ru.is>
// Copyright (C) 2003, 2009, 2010 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/>.
// { dg-require-fileio "" }
// { dg-require-binary-io "" }
#include <iostream>
#include <cstdio>
#include <testsuite_hooks.h>
void test10()
{
using namespace std;
bool test __attribute__((unused)) = true;
const char* name = "filebuf_virtuals-1.txt";
FILE* ret = freopen(name, "r", stdin);
VERIFY( ret );
streampos p1 = cin.tellg();
VERIFY( p1 != streampos(-1) );
VERIFY( streamoff(p1) == 0 );
cin.seekg(0, ios::end);
VERIFY( cin.good() );
streampos p2 = cin.tellg();
VERIFY( p2 != streampos(-1) );
VERIFY( p2 != p1 );
VERIFY( streamoff(p2) == ftell(stdin) );
cin.seekg(p1);
VERIFY( cin.good() );
streamoff n = p2 - p1;
VERIFY( n > 0 );
for (int i = 0; i < n; ++i)
{
streampos p3 = cin.tellg();
VERIFY( streamoff(p3) == i );
VERIFY( ftell(stdin) == i );
cin.get();
VERIFY( cin.good() );
}
streampos p4 = cin.tellg();
VERIFY( streamoff(p4) == n );
VERIFY( ftell(stdin) == n );
cin.get();
VERIFY( cin.eof() );
}
int main()
{
test10();
return 0;
}
|