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// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>

// Copyright (C) 2001, 2002, 2003 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 <testsuite_hooks.h>

const char name_04[] = "filebuf_virtuals-4.txt"; // empty file, need to create

class Cvt_to_upper : public std::codecvt<char, char, mbstate_t>

{

  bool do_always_noconv() const throw()

  {

    return false;

  }

};

// libstdc++/9169

// filebuf output fails if codecvt<>::out returns noconv

void test10()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  locale c_loc = locale::classic();

  locale loc(c_loc, new Cvt_to_upper);

  string str("abcdefghijklmnopqrstuvwxyz");

  string tmp;

  {

    ofstream out;

    out.imbue(loc);

    out.open(name_04);

    copy(str.begin(), str.end(), ostreambuf_iterator<char>(out));

  }

  {

    ifstream in;

    in.open(name_04);

    copy(istreambuf_iterator<char>(in), istreambuf_iterator<char>(),

         back_inserter(tmp));

  }

  VERIFY( tmp.size() == str.size() );

  VERIFY( tmp == str );

}

int main()

{

  test10();

  return 0;

}