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// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>

// Copyright (C) 2001, 2002, 2003 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 2, 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 COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// 27.8.1.4 Overridden virtual functions

#include <fstream>

#include <testsuite_hooks.h>

class testbuf : public std::filebuf

{

public:

  // Typedefs:

  typedef std::filebuf base_type;

  typedef base_type::traits_type traits_type;

  typedef base_type::char_type char_type;

  testbuf(): base_type()

  { _M_mode = (std::ios_base::in | std::ios_base::out); }

  bool

  check_pointers()

  {

    bool test __attribute__((unused)) = true;

    test = (this->pbase() == NULL);

    test &= (this->pptr() == NULL);

    return test;

  }

};

const char name_01[] = "filebuf_virtuals-1.txt";

// Test overloaded virtual functions.

void test05()

{

  using namespace std;

  typedef std::filebuf::int_type        int_type;

  typedef std::filebuf::traits_type     traits_type;

  typedef std::filebuf::pos_type        pos_type;

  typedef std::filebuf::off_type        off_type;

  typedef size_t                        size_type;

  bool test __attribute__((unused)) = true;

  {

    testbuf                             f_tmp;

    // setbuf

    // pubsetbuf(char_type* s, streamsize n)

    f_tmp.pubsetbuf(0,0);

    VERIFY( f_tmp.check_pointers() );

  }

  {

    testbuf                             f_tmp;

    f_tmp.open(name_01, ios_base::out | ios_base::in);

    f_tmp.sbumpc();

    // setbuf

    // pubsetbuf(char_type* s, streamsize n)

    f_tmp.pubsetbuf(0, 0);

    VERIFY( f_tmp.check_pointers() );

  }

}

int main()

{

  test05();

  return 0;

}