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// 2003-05-20  Paolo Carlini  <pcarlini@unitus.it>

// Copyright (C) 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.

// 27.8.1.3 filebuf member functions

// @require@ %-*.tst %-*.txt

// @diff@ %-*.tst %-*.txt

// Test that upon filebuf::close() 27.8.1.1,3 is enforced.

#include <fstream>

#include <testsuite_hooks.h>

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

const char name_02[] = "filebuf_virtuals-2.txt"; // empty file, need to create

bool overflow_called;

bool underflow_called;

bool uflow_called;

class Close_filebuf : public std::filebuf

{

public:

  int_type overflow(int_type c)

  {

    overflow_called = true;

    return std::filebuf::overflow(c);

  }

  int_type underflow()

  {

    underflow_called = true;

    return std::filebuf::underflow();

  }

  int_type uflow()

  {

    uflow_called = true;

    return std::filebuf::uflow();

  }

};

void test_05()

{

  bool test __attribute__((unused)) = true;

  Close_filebuf fb_01, fb_02;

  char buffer[] = "xxxxxxxxxx";

  // 'in'

  fb_01.open(name_01, std::ios_base::in);

  fb_01.sgetc();

  fb_01.close();

  underflow_called = false;

  fb_01.sgetc();

  VERIFY( underflow_called == true );

  uflow_called = false;

  fb_01.sbumpc();

  VERIFY( uflow_called == true );

  uflow_called = false;

  fb_01.snextc();

  VERIFY( uflow_called == true );

  uflow_called = false;

  fb_01.sgetn(buffer, sizeof(buffer));

  VERIFY( uflow_called == true );

  // 'out'

  fb_02.open(name_02, std::ios_base::out);

  fb_02.close();

  overflow_called = false;

  fb_02.sputc('T');

  VERIFY( overflow_called == true );

  overflow_called = false;

  fb_02.sputn(buffer, sizeof(buffer));

  VERIFY( overflow_called == true );

}

int

main()

{

  test_05();

  return 0;

}