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// 2003-06-02 Paolo Carlini <pcarlini@unitus.it>

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

//

// 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/>.

// 27.8.1.4 Overridden virtual functions

// { dg-require-fileio "" }

#include <fstream>

#include <testsuite_hooks.h>

const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it

// libstdc++/9761

void test01()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  filebuf fbuf;

  filebuf::int_type r1, r2;

  fbuf.open(name_01, ios_base::in);

  fbuf.sbumpc();

  fbuf.sbumpc();

  r1 = fbuf.sputbackc('a');

  r2 = fbuf.sputbackc('b');

  fbuf.close();

  VERIFY( r1 != filebuf::traits_type::eof() );

  VERIFY( r2 == filebuf::traits_type::eof() );

}

int main()

{

  test01();

  return 0;

}