#ifndef BOOST_ARCHIVE_ITERATORS_OSTREAM_ITERATOR_HPP

#define BOOST_ARCHIVE_ITERATORS_OSTREAM_ITERATOR_HPP



// MS compatible compilers support #pragma once

#if defined(_MSC_VER) && (_MSC_VER >= 1020)

# pragma once

#endif



/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8

// ostream_iterator.hpp



// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 

// Use, modification and distribution is subject to the Boost Software

// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at

// http://www.boost.org/LICENSE_1_0.txt)



//  See http://www.boost.org for updates, documentation, and revision history.



// note: this is a custom version of the standard ostream_iterator.

// This is necessary as the standard version doesn't work as expected

// for wchar_t based streams on systems for which wchar_t not a true

// type but rather a synonym for some integer type.



#include <ostream>

#include <boost/iterator/iterator_facade.hpp>



namespace boost { 

namespace archive {

namespace iterators {



// given a type, make an input iterator based on a pointer to that type

template<class Elem>

class ostream_iterator :  

    public boost::iterator_facade<

        ostream_iterator<Elem>,

        Elem,

        std::output_iterator_tag,

        ostream_iterator<Elem> &

    >

{

    friend class boost::iterator_core_access;

    typedef ostream_iterator this_t ;

    typedef Elem char_type;

    typedef std::basic_ostream<char_type> ostream_type;



    //emulate the behavior of std::ostream 

    ostream_iterator & dereference() const {

        return const_cast<ostream_iterator &>(*this);

    }

    bool equal(const this_t & rhs) const {

        return m_ostream == rhs.m_ostream;

    }

    void increment(){}

protected:

    ostream_type *m_ostream;

    void put_val(char_type e){

        if(NULL != m_ostream){

            m_ostream->put(e);

            if(! m_ostream->good())

                m_ostream = NULL;

        }

    }

public:

    this_t & operator=(char_type c){

        put_val(c);

        return *this;

    }

    ostream_iterator(ostream_type & os) :

        m_ostream (& os)

    {}

    ostream_iterator() :

        m_ostream (NULL)

    {}

    ostream_iterator(const ostream_iterator & rhs) :

        m_ostream (rhs.m_ostream)

    {}

};



} // namespace iterators

} // namespace archive

} // namespace boost



#endif // BOOST_ARCHIVE_ITERATORS_OSTREAM_ITERATOR_HPP

