// (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