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/* Copyright 2003-2013 Joaquin M Lopez Munoz.
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE_1_0.txt or copy at
 * See for library home page.


#if defined(_MSC_VER)
#pragma once

#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include <boost/mpl/contains.hpp>

namespace boost{

namespace multi_index{

namespace detail{

/* determines whether an index type has a given tag in its tag list */

template<typename Tag>
struct has_tag
  template<typename Index>
  struct apply:mpl::contains<BOOST_DEDUCED_TYPENAME Index::tag_list,Tag>

} /* namespace multi_index::detail */

} /* namespace multi_index */

} /* namespace boost */