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/*=============================================================================
Copyright (c) 2009 Christopher Schmidt
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)
==============================================================================*/
#ifndef BOOST_FUSION_CONTAINER_MAP_DETAIL_KEY_OF_IMPL_HPP
#define BOOST_FUSION_CONTAINER_MAP_DETAIL_KEY_OF_IMPL_HPP
#include <boost/fusion/container/map/detail/value_of_impl.hpp>
namespace boost { namespace fusion { namespace extension
{
template <typename>
struct key_of_impl;
template <>
struct key_of_impl<map_iterator_tag>
{
template <typename It>
struct apply
{
typedef typename
value_of_impl<map_iterator_tag>::
template apply<It>::type::first_type
type;
};
};
}}}
#endif
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