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// 1999-07-01 bkoz

// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009

// 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/>.

// 21.3.7.9 inserters and extractors

// NB: This file is predicated on sstreams, istreams, and ostreams

// working, not to mention other major details like char_traits, and

// all of the string class.

#include <string>

#include <sstream>

#include <testsuite_hooks.h>

// testing basic_stringbuf::xsputn via stress testing with large strings

// based on a bug report libstdc++ 9

void test04(std::size_t size)

{

  bool test __attribute__((unused)) = true;

  std::wstring str(size, L's');

  std::size_t expected_size = 2 * (size + 1);

  std::wostringstream oss(str);

  // sanity checks

  VERIFY( str.size() == size );

  VERIFY( oss.good() );

  // stress test

  oss << str << std::endl;

  if (!oss.good())

    test = false;

  oss << str << std::endl;

  if (!oss.good())

    test = false;

  VERIFY( str.size() == size );

  VERIFY( oss.good() );

  std::wstring str_tmp = oss.str();

  VERIFY( str_tmp.size() == expected_size );

}

int main()

{

  test04(1); // expected_size == 4

  test04(1000); // expected_size == 2002

  test04(10000); // expected_size == 20002

  return 0;

}