1// 1999-07-01 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009
4// Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21// 21.3.7.9 inserters and extractors
22
23// NB: This file is predicated on sstreams, istreams, and ostreams
24// working, not to mention other major details like char_traits, and
25// all of the string class.
26
27#include <string>
28#include <sstream>
29#include <testsuite_hooks.h>
30
31// testing basic_stringbuf::xsputn via stress testing with large strings
32// based on a bug report libstdc++ 9
33void test04(std::size_t size)
34{
35  bool test __attribute__((unused)) = true;
36  std::string str(size, 's');
37  std::size_t expected_size = 2 * (size + 1);
38  std::ostringstream oss(str);
39
40  // sanity checks
41  VERIFY( str.size() == size );
42  VERIFY( oss.good() );
43
44  // stress test
45  oss << str << std::endl;
46  if (!oss.good())
47    test = false;
48
49  oss << str << std::endl;
50  if (!oss.good())
51    test = false;
52
53  VERIFY( str.size() == size );
54  VERIFY( oss.good() );
55  std::string str_tmp = oss.str();
56  VERIFY( str_tmp.size() == expected_size );
57}
58
59int main()
60{
61  test04(1); // expected_size == 4
62  test04(1000); // expected_size == 2002
63  test04(10000); // expected_size == 20002
64  return 0;
65}
66