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