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44 lines
1017 B
44 lines
1017 B
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#ifndef BOOST_MPL_MAP_AUX_CONTAINS_IMPL_HPP_INCLUDED
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#define BOOST_MPL_MAP_AUX_CONTAINS_IMPL_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2003-2004
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/mpl for documentation.
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// $Id$
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// $Date$
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// $Revision$
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#include <boost/mpl/contains_fwd.hpp>
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#include <boost/mpl/if.hpp>
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#include <boost/mpl/map/aux_/at_impl.hpp>
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#include <boost/mpl/map/aux_/tag.hpp>
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#include <boost/type_traits/is_same.hpp>
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namespace boost { namespace mpl {
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template<>
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struct contains_impl< aux::map_tag >
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{
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template< typename Map, typename Pair > struct apply
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: is_same<
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typename at_impl<aux::map_tag>::apply<
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Map
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, typename Pair::first
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>::type
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, typename Pair::second
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>
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{
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};
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};
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}}
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#endif // BOOST_MPL_MAP_AUX_CONTAINS_IMPL_HPP_INCLUDED
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