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// Copyright (C) 2004, 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/>.

// 27.5.2 template class basic_streambuf

#include <cstring>

#include <cwchar>

#include <streambuf>

#include <sstream>

#include <ostream>

#include <testsuite_hooks.h>

// libstdc++/9424

class Outbuf_2 : public std::wstreambuf

{

  wchar_t buf[1];

public:

  Outbuf_2()

  {

    setp(buf, buf + 1);

  }

  int_type overflow(int_type c)

  {

    int_type eof = traits_type::eof();

    if (pptr() < epptr())

      {

        if (traits_type::eq_int_type(c, eof))

          return traits_type::not_eof(c);

        *pptr() = traits_type::to_char_type(c);

        pbump(1);

        return c;

      }

    return eof;

  }

};

class Inbuf_2 : public std::wstreambuf

{

  static const wchar_t buf[];

  const wchar_t* current;

  int size;

public:

  Inbuf_2()

  {

    current = buf;

    size = std::wcslen(buf);

  }

  int_type underflow()

  {

    if (current < buf + size)

      return traits_type::to_int_type(*current);

    return traits_type::eof();

  }

  int_type uflow()

  {

    if (current < buf + size)

      return traits_type::to_int_type(*current++);

    return traits_type::eof();

  }

};

const wchar_t Inbuf_2::buf[] = L"Atteivlis";

void test11()

{

  bool test __attribute__((unused)) = true;

  Inbuf_2 inbuf1;

  std::wistream is(&inbuf1);

  Outbuf_2 outbuf1;

  is >> &outbuf1;

  VERIFY( inbuf1.sgetc() == L't' );

  VERIFY( is.good() );

}

int main()

{

  test11();

  return 0;

}