1// Copyright (C) 2004 Free Software Foundation
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 2, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING.  If not, write to the Free
16// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17// USA.
18
19// 27.6.1.3 unformatted input functions
20// NB: ostream has a particular "seeks" category. Adopt this for istreams too.
21// @require@ %-*.tst %-*.txt
22// @diff@ %-*.tst %-*.txt
23
24#include <istream>
25#include <sstream>
26#include <fstream>
27#include <testsuite_hooks.h>
28
29void test01()
30{
31  using namespace std;
32  typedef ios::off_type off_type;
33  typedef ios::pos_type pos_type;
34
35  bool test __attribute__((unused)) = true;
36  const char str_lit01[] = "wistream_seeks-1.tst";
37
38  // in
39  wistringstream ist1;
40  pos_type p3 = ist1.tellg();
41
42  wifstream ifs1;
43  pos_type p4 = ifs1.tellg();
44
45  // N.B. We implement the resolution of DR 453 and
46  // istringstream::tellg() doesn't fail.
47  VERIFY( p3 == pos_type(off_type(0)) );
48  VERIFY( p4 == pos_type(off_type(-1)) );
49
50  // in
51  // test ctors leave things in the same positions...
52  wistringstream ist2(L"bob_marley:kaya");
53  p3 = ist2.tellg();
54
55  wifstream ifs2(str_lit01);
56  p4 = ifs2.tellg();
57
58  VERIFY( p3 == p4 );
59}
60
61int main()
62{
63  test01();
64  return 0;
65}
66