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// 2003-05-01 Petur Runolfsson  <peturr02@ru.is>

// Copyright (C) 2003, 2004 Free Software Foundation

//

// 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.

// 27.3 Standard iostream objects

// Check that standard streams can be used from constructors and

// destructors of static objects, provided that an instance of 

// ios_base::Init has been constructed.

void init_standard_streams();

int use_standard_streams();

struct Strange

{

  int i;

  Strange()

  {

    init_standard_streams();

    i = use_standard_streams();

  }

  ~Strange()

  {

    use_standard_streams();

    init_standard_streams();

  }

};

static Strange static_ob;

#include <testsuite_hooks.h>

#include <iostream>

void init_standard_streams()

{

  std::ios_base::Init init;

}

int use_standard_streams()

{

  std::wcout << L"Hello, world!" << std::endl;

  std::wcerr << L"World, hello!" << std::endl;

  int ret = std::ios_base::xalloc();

  std::wcin.iword(ret) = ret + 1;

  std::wcout.iword(ret) = ret + 2;

  std::wcerr.iword(ret) = ret + 3;

  std::wclog.iword(ret) = ret + 4;

  return ret;

}

void test05()

{

  bool test __attribute__((unused)) = true;

  int i = static_ob.i;

  VERIFY( std::wcin.iword(i) == i + 1 );

  VERIFY( std::wcout.iword(i) == i + 2 );

  VERIFY( std::wcerr.iword(i) == i + 3 );

  VERIFY( std::wclog.iword(i) == i + 4 );

}

int main()

{

  test05();

  return 0;

}