// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)

// (C) Copyright 2003-2007 Jonathan Turkanis

// Distributed under 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/libs/iostreams for documentation.



// Borrowed from <boost/archive/add_facet.hpp>



#ifndef BOOST_IOSTREAMS_DETAIL_ADD_FACET_HPP_INCLUDED

#define BOOST_IOSTREAMS_DETAIL_ADD_FACET_HPP_INCLUDED



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

# pragma once

#endif



#include <boost/config.hpp>  // BOOST_DINKUMWARE_STDLIB.

#include <boost/detail/workaround.hpp>



//------------------Definition of add_facet-----------------------------------//



// Does STLport uses old Dinkumware locale?

#if (defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)) && \

    defined(_STLP_NO_OWN_IOSTREAMS) \

    /**/

#  if (defined(_YVALS) && !defined(__IBMCPP__)) || defined(_CPPLIB_VER)

#    define BOOST_IOSTREMS_STLPORT_WITH_OLD_DINKUMWARE

#  endif

#endif



namespace boost { namespace iostreams { namespace detail {



template<class Facet>

inline std::locale add_facet(const std::locale &l, Facet * f)

{

    return

        #if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1) || \

            defined(BOOST_IOSTREMS_STLPORT_WITH_OLD_DINKUMWARE) \

            /**/

            std::locale(std::_Addfac(l, f));

        #else

            // standard compatible

            std::locale(l, f);

        #endif

}



} } } // End namespaces detail, iostreams, boost.



#endif // #ifndef BOOST_IOSTREAMS_DETAIL_ADD_FACET_HPP_INCLUDED

