libstdc++-v3/testsuite/27_io/objects/char/12048-1.cc

   1 // Derived from libstdc++/12048 by LJR <ljrittle@acm.org> with
   2 // reminder from Petur Runolfsson <peturr02@ru.is>.
   3
   4 // Copyright (C) 2003 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 #include <iostream>
  23 #include <testsuite_hooks.h>
  24
  25 void
  26 test01()
  27 {
  28   std::freopen("cin_unget-1.txt", "r", stdin);
  29
  30   char c1;
  31   char c2;
  32   std::cin.get(c1);
  33   std::cin.unget();
  34   std::cin.get(c2);
  35   VERIFY( std::cin.good() );
  36   VERIFY( c1 == c2 );
  37 }
  38
  39 int main(void)
  40 {
  41   test01();
  42   return 0;
  43 }