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// { dg-require-namedlocale "" }

// 2003-09-08  Petur Runolfsson  <peturr02@ru.is>

// Copyright (C) 2003, 2005 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 <locale>

#include <cstdio>

#include <testsuite_hooks.h>

// Check that basic_filebuf::seekoff handles UTF-8 when open for input and

// output.

void test02()

{

  using namespace std;

  typedef wfilebuf::int_type int_type;

  bool test __attribute__((unused)) = true;

  const char name[] = "tmp_seekoff-2.tst";

  locale loc = locale("se_NO.UTF-8");

  const size_t size = 10;

  wchar_t buf[size];

  streamsize n;

  wfilebuf fb;

  fb.pubimbue(loc);

  fb.open(name, ios_base::in | ios_base::out | ios_base::trunc);

  n = fb.sputn(L"\xa0st", 3);

  VERIFY( n == 3 );

  fb.pubseekoff(0, ios_base::beg);

  n = fb.sgetn(buf, 2);

  VERIFY( n == 2 );

  VERIFY( !wmemcmp(buf, L"\xa0s", 2) );

  fb.pubseekoff(0, ios_base::cur);

  n = fb.sputn(L"\xb2R", 2);

  VERIFY( n == 2 );

  fb.pubseekoff(0, ios_base::beg);

  n = fb.sgetn(buf, size);

  VERIFY( n == 4 );

  VERIFY( !wmemcmp(buf, L"\xa0s\xb2R", 4) );

  fb.pubseekoff(0, ios_base::beg);

  n = fb.sputn(L"\x90m\x92n\x94", 5);

  VERIFY( n == 5 );

  fb.pubseekoff(0, ios_base::beg);

  n = fb.sgetn(buf, 2);

  VERIFY( n == 2 );

  VERIFY( !wmemcmp(buf, L"\x90m", 2) );

  fb.pubseekoff(0, ios_base::end);

  n = fb.sputn(L"I\xbfJ", 3);

  VERIFY( n == 3 );

  fb.pubseekoff(0, ios_base::beg);

  n = fb.sgetn(buf, size);

  VERIFY( n == 8 );

  VERIFY( !wmemcmp(buf, L"\x90m\x92n\x94I\xbfJ", 8) );

  fb.close();

}

int main()

{

  test02();

  return 0;

}