// (C) Copyright Jonathan Turkanis 2003.

// 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.

#ifndef BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED

#define BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED

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

# pragma once

#endif

#include <boost/config.hpp>  // DEDUCED_TYPENAME, MSVC.

#include <boost/detail/workaround.hpp>

#include <boost/iostreams/detail/dispatch.hpp>

#include <boost/iostreams/detail/streambuf.hpp>

#include <boost/iostreams/detail/wrap_unwrap.hpp>

#include <boost/iostreams/operations_fwd.hpp>

#include <boost/mpl/if.hpp>

// Must come last.

#include <boost/iostreams/detail/config/disable_warnings.hpp>

namespace boost { namespace iostreams { 

namespace detail {

// Implementation templates for simulated tag dispatch.

template<typename T> 

struct imbue_impl;

} // End namespace detail.

template<typename T, typename Locale>

void imbue(T& t, const Locale& loc)

{ detail::imbue_impl<T>::imbue(detail::unwrap(t), loc); }

namespace detail {

//------------------Definition of imbue_impl----------------------------------//

template<typename T>

struct imbue_impl

    : mpl::if_<

          is_custom<T>,

          operations<T>,

          imbue_impl<

              BOOST_DEDUCED_TYPENAME

              dispatch<

                  T, streambuf_tag, localizable_tag, any_tag

              >::type

          >

      >::type

    { };

template<>

struct imbue_impl<any_tag> {

    template<typename T, typename Locale>

    static void imbue(T&, const Locale&) { }

};

template<>

struct imbue_impl<streambuf_tag> {

    template<typename T, typename Locale>

    static void imbue(T& t, const Locale& loc) { t.pubimbue(loc); }

};

template<>

struct imbue_impl<localizable_tag> {

    template<typename T, typename Locale>

    static void imbue(T& t, const Locale& loc) { t.imbue(loc); }

};

} // End namespace detail.

} } // End namespaces iostreams, boost.

#include <boost/iostreams/detail/config/enable_warnings.hpp>

#endif // #ifndef BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED