// Boost.Bimap

//

// Copyright (c) 2006-2007 Matias Capeletto

//

// 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)



/// \file tags/support/is_tagged.hpp

/// \brief type_traits extension



#ifndef BOOST_BIMAP_TAGS_SUPPORT_IS_TAGGED_HPP

#define BOOST_BIMAP_TAGS_SUPPORT_IS_TAGGED_HPP



#if defined(_MSC_VER) && (_MSC_VER>=1200)

#pragma once

#endif



#include <boost/config.hpp>



#include <boost/mpl/bool.hpp>

#include <boost/bimap/tags/tagged.hpp>



/** \struct boost::bimaps::tags::support::is_tagged

\brief Type trait to check if a type is tagged.



\code

template< class Type >

struct is_tagged

{

    typedef {mpl::true_/mpl::false_} type;

};

\endcode



See also tagged.

                                                                                **/



#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES



namespace boost {

namespace bimaps {

namespace tags {

namespace support {





// is_tagged metafunction



template< class Type >

struct is_tagged :

    ::boost::mpl::false_ {};



template< class Type, class Tag >

struct is_tagged< tagged< Type, Tag > > :

    ::boost::mpl::true_ {};



} // namespace support

} // namespace tags

} // namespace bimaps

} // namespace boost



#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES



#endif // BOOST_BIMAP_TAGS_SUPPORT_IS_TAGGED_HPP



