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// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 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 <cstdio>

#include <fstream>

#include <cstring>

#include <ext/stdio_filebuf.h>

#include <testsuite_hooks.h>

void test1()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  FILE* file = fopen("tmp_10063-1", "w");

  putc('0', file);

  putc('1', file);

  {

    __gnu_cxx::stdio_filebuf<char> sbuf(file, ios_base::out);

    sbuf.sputc('2');

    sbuf.sputc('3');

  }

  putc('4', file);

  fclose(file);

  filebuf fbuf;

  fbuf.open("tmp_10063-1", ios_base::in);

  char buf[10];

  streamsize n = fbuf.sgetn(buf, sizeof(buf));

  fbuf.close();

  VERIFY(n == 5);

  VERIFY(!memcmp(buf, "01234", 5));

}

int main()

{

  test1();

  return 0;

}