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// Copyright (C) 2001, 2002, 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/>.

// { dg-require-fileio "" }

// 27.8.1.3 filebuf member functions

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

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

// various tests for filebuf::open() and filebuf::close() including

// the non-portable functionality in the libstdc++-v3 IO library

#include <fstream>

#include <ext/stdio_filebuf.h>

#include <testsuite_hooks.h>

// Verify that std::filebuf doesn't close files that it didn't open

// when using the following std::filebuf ctor:

//

//      std::filebuf(__c_file_type*  __f,

//                   ios_base::openmode __mode,

//                   int_type  __s);

//

// Thanks to "George T. Talbot" <george@moberg.com> for uncovering

// this bug/situation. 

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

void test_02()

{

  bool test __attribute__((unused)) = true;

  int close_num = 0;

  // read (ext)

  FILE* f2 = fopen(name_01, "r");

  VERIFY( f2 != NULL );

  if (f2)

  {

    __gnu_cxx::stdio_filebuf<char> fb(f2, std::ios_base::in, 512);

    close_num = fclose(f2);

  }

  VERIFY( close_num == 0 );

  // read (standard)

  FILE* f = fopen(name_01, "r");

  VERIFY( f != NULL );

  if (f)

  {

    std::ifstream ifstream1(name_01);

    VERIFY( ifstream1.is_open() );

    std::ios_base::iostate st01 = ifstream1.rdstate();

    VERIFY( st01 == std::ios_base::goodbit );

    close_num = fclose(f);

  }

  VERIFY( close_num == 0 );

}

int

main()

{

  test_02();

  return 0;

}