1// 2000-06-29 bkoz
2
3// Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation
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
8// Free Software Foundation; either version 2, or (at your option)
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
17// with this library; see the file COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// 27.6.2.4  basic_ostream seek members  [lib.ostream.seeks]
22
23#include <ostream>
24#include <istream>
25#include <sstream>
26#include <testsuite_hooks.h>
27
28const char* s = " lootpack, peanut butter wolf, rob swift, madlib, quasimoto";
29const int times = 10;
30
31void write_rewind(std::iostream& stream)
32{
33  bool test __attribute__((unused)) = true;
34
35  for (int j = 0; j < times; j++)
36    {
37      std::streampos begin = stream.tellp();
38
39      for (int i = 0; i < times; ++i)
40	stream << j << '-' << i << s << '\n';
41
42      stream.seekp(begin);
43    }
44  VERIFY( stream.good() );
45}
46
47void check_contents(std::iostream& stream)
48{
49  bool test __attribute__((unused)) = true;
50
51  stream.clear();
52  stream.seekg(0, std::ios::beg);
53  int i = 0;
54  int loop = times * times + 2;
55  while (i < loop)
56    {
57      stream.ignore(80, '\n');
58      if (stream.good())
59	++i;
60      else
61	break;
62    }
63  VERIFY( i == times );
64}
65
66// stringstream
67// libstdc++/2346
68// N.B. The original testcase was broken, using tellg/seekg in write_rewind.
69void test03()
70{
71  std::stringstream sstrm;
72
73  write_rewind(sstrm);
74  check_contents(sstrm);
75}
76
77int main()
78{
79  test03();
80  return 0;
81}
82