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// Derived from libstdc++/12048 by LJR <ljrittle@acm.org> with
// reminder from Petur Runolfsson <peturr02@ru.is>.
 
// Copyright (C) 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.
 
// DR 49 states that cin.rdbuf()->sbumpc() and fgetc(stdin) should be
// equivalent and interchangable. Currently however, cin.rdbuf()->sungetc()
// only returns characters that were read with cin.rdbuf()->sbumpc()
 
// { dg-do run { xfail *-*-* } }
 
#include <iostream>
#include <cstdio>
#include <testsuite_hooks.h>
 
void
test01()
{
  std::freopen("cin_unget-1.txt", "r", stdin);
 
  char c1;
  int c2;
  char c3;
  std::cin.get(c1);
  c2 = std::fgetc(stdin);
  std::cin.unget();
  if (std::cin.good())
    {
      std::cin.get(c3);
      VERIFY( std::cin.good() );
      VERIFY( c3 == std::char_traits<char>::to_char_type(c2) );
    }
}
 
int main(void)
{
  test01();
  return 0;
}