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// 2003-04-26 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::cout << "Hello, world!" << std::endl;
  std::cerr << "World, hello!" << std::endl;
 
  int ret = std::ios_base::xalloc();
  std::cin.iword(ret) = ret + 1;
  std::cout.iword(ret) = ret + 2;
  std::cerr.iword(ret) = ret + 3;
  std::clog.iword(ret) = ret + 4;
  return ret;
}
 
void test05()
{
  bool test __attribute__((unused)) = true;
  int i = static_ob.i;
 
  VERIFY( std::cin.iword(i) == i + 1 );
  VERIFY( std::cout.iword(i) == i + 2 );
  VERIFY( std::cerr.iword(i) == i + 3 );
  VERIFY( std::clog.iword(i) == i + 4 );
}
 
int main()
{
  test05();
  return 0;
}