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// 2003-05-01 Petur Runolfsson <peturr02@ru.is>

// Copyright (C) 2003, 2009 Free Software Foundation

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING3.  If not see

// <http://www.gnu.org/licenses/>.

// { dg-require-fileio "" }

#include <ext/stdio_sync_filebuf.h>

#include <testsuite_hooks.h>

// libstdc++/12048

void test02()

{

  bool test __attribute__((unused)) = true;

  const char* name = "cin_unget-1.txt";

  std::FILE* file = std::fopen(name, "r");

  __gnu_cxx::stdio_sync_filebuf<char> sbuf(file);

  int c1 = sbuf.sbumpc();

  VERIFY( c1 != EOF );

  int c2 = sbuf.sungetc();

  VERIFY( c2 != EOF );

  int c3 = sbuf.sbumpc();

  VERIFY( c3 == c1 );

  std::fclose(file);

}

int main ()

{

  test02();

  return 0;

}