1// Derived from libstdc++/12048 by LJR <ljrittle@acm.org> with
2// reminder from Petur Runolfsson <peturr02@ru.is>.
3
4// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
5// Free Software Foundation, Inc.
6//
7// This file is part of the GNU ISO C++ Library.  This library is free
8// software; you can redistribute it and/or modify it under the
9// terms of the GNU General Public License as published by the
10// Free Software Foundation; either version 3, or (at your option)
11// any later version.
12
13// This library is distributed in the hope that it will be useful,
14// but WITHOUT ANY WARRANTY; without even the implied warranty of
15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16// GNU General Public License for more details.
17
18// You should have received a copy of the GNU General Public License along
19// with this library; see the file COPYING3.  If not see
20// <http://www.gnu.org/licenses/>.
21
22// { dg-require-fileio "" }
23
24#include <iostream>
25#include <cstdio>
26#include <testsuite_hooks.h>
27
28void
29test01()
30{
31  std::freopen("cin_unget-1.txt", "r", stdin);
32
33  char c1;
34  char c2;
35  std::cin.get(c1);
36  std::cin.unget();
37  std::cin.get(c2);
38  VERIFY( std::cin.good() );
39  VERIFY( c1 == c2 );
40}
41
42int main(void)
43{
44  test01();
45  return 0;
46}
47