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// 1999-07-01 bkoz

// Copyright (C) 1999, 2000, 2001, 2002, 2003 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 2, 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 COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// 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 <fstream>

#include <iostream>

#include <testsuite_hooks.h>

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

// based on a bug report libstdc++ 9

// mode == out

void test05(std::size_t size)

{

  bool test __attribute__((unused)) = true;

  const char filename[] = "inserters_extractors-1.txt";

  const wchar_t fillc = L'f';

  std::wofstream ofs(filename);

  std::wstring str(size, fillc);

  // sanity checks

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

  VERIFY( ofs.good() );

  // stress test

  ofs << str << std::endl;

  if (!ofs.good())

    test = false;

  ofs << str << std::endl;

  if (!ofs.good())

    test = false;

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

  VERIFY( ofs.good() );

  ofs.close();

  // sanity check on the written file

  std::wifstream ifs(filename);

  std::size_t count = 0;

  wchar_t c;

  while (count <= (2 * size) + 4)

    {

      ifs >> c;

      if (ifs.good() && c == fillc)

        {

          ++count;

          c = '0';

        }

      else

        break;

    }

  VERIFY( count == 2 * size );

}

int main()

{

  test05(1);

  test05(1000);

  test05(10000);

  return 0;

}