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