1// Copyright (C) 2003 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 2, 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 COPYING.  If not, write to the Free
16// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17// USA.
18
19#include <iostream>
20#include <cstdio>
21#include <testsuite_hooks.h>
22
23void
24test01()
25{
26  std::freopen("cin_unget-1.txt", "r", stdin);
27
28  char buf[2];
29  VERIFY( std::cin.rdbuf()->sgetn(buf, 2) == 2 );
30  int c1 = std::cin.rdbuf()->sungetc();
31  int c2 = std::fgetc(stdin);
32  VERIFY( c1 == std::char_traits<char>::to_int_type(buf[1]) );
33  VERIFY( c2 == c1 );
34}
35
36int main(void)
37{
38  test01();
39  return 0;
40}
41