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// 1999-10-14 bkoz

// Copyright (C) 1999, 2001, 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.

// As a special exception, you may use this file as part of a free software

// library without restriction.  Specifically, if other files instantiate

// templates or use macros or inline functions from this file, or you compile

// this file and link it with other files to produce an executable, this

// file does not by itself cause the resulting executable to be covered by

// the GNU General Public License.  This exception does not however

// invalidate any other reasons why the executable file might be covered by

// the GNU General Public License.

// 27.6.1.1.2 class basic_istream::sentry

#include <istream>

#include <sstream>

#include <ext/pod_char_traits.h>

#include <testsuite_hooks.h>

#include <testsuite_character.h>

void test01()

{

  using namespace std;

  using __gnu_test::pod_ushort;

  typedef basic_string<pod_ushort>      string_type;

  typedef basic_stringbuf<pod_ushort>   stringbuf_type;

  typedef basic_istream<pod_ushort>     istream_type;

  bool test __attribute__((unused)) = true;

  const string_type str01;

  stringbuf_type strbuf01;

  stringbuf_type strbuf02(str01);

  istream_type istr01(&strbuf01);

  istream_type istr02(&strbuf02);

  // test negatives

  try

    {

      istream_type::sentry sentry01(istr01);

    }

  catch (std::bad_cast& obj)

    {

      // Ok, throws bad_cast because locale has no ctype facet.

    }

  catch (...)

    {

      VERIFY( false );

    }

  try

    {

      istream_type::sentry sentry02(istr01, true);

    }

  catch (std::bad_cast& obj)

    {

      // Ok, throws bad_cast because locale has no ctype facet.

    }

  catch (...)

    {

      VERIFY( false );

    }

  // imbued.

  const std::locale loc(std::locale::classic(), new std::ctype<pod_ushort>);

  istr01.imbue(loc);

  try

    {

      istream_type::sentry sentry01(istr01);

      VERIFY( bool(sentry01) == false );

    }

  catch (...)

    {

      VERIFY( false );

    }

  try

    {

      istream_type::sentry sentry02(istr01, true);

      VERIFY( bool(sentry02) == false );

    }

  catch (...)

    {

      VERIFY( false );

    }

  // test positive 

  try

    {

      istream_type::sentry sentry03(istr02);

    }

  catch (std::bad_cast& obj)

    {

      // Ok, throws bad_cast because locale has no ctype facet.

    }

  catch (...)

    {

      VERIFY( false );

    }

  try

    {

      istream_type::sentry sentry04(istr02, true);

    }

  catch (std::bad_cast& obj)

    {

      // Ok, throws bad_cast because locale has no ctype facet.

    }

  catch (...)

    {

      VERIFY( false );

    }

  // imbued.

  istr02.imbue(loc);

  try

    {

      istr02.clear();

      istream_type::sentry sentry03(istr02);

      // ... as eofbit set.

      VERIFY( bool(sentry03) == false );

    }

  catch (...)

    {

      VERIFY( false );

    }

  try

    {

      istr02.clear();

      istream_type::sentry sentry04(istr02, true);

      VERIFY( bool(sentry04) == true );

    }

  catch (...)

    {

      VERIFY( false );

    }

}

#if !__GXX_WEAK__

// Explicitly instantiate for systems with no COMDAT or weak support.

template

  std::basic_string<__gnu_test::pod_ushort>::size_type

  std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_max_size;

template

  __gnu_test::pod_ushort

  std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_terminal;

#endif

int main()

{

  test01();

  return 0;

}