forked from boostorg/mpl
65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
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#ifndef BOOST_MPL_MAP_AUX_INSERT_IMPL_HPP_INCLUDED
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#define BOOST_MPL_MAP_AUX_INSERT_IMPL_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2003-2004
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// Copyright David Abrahams 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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// $Source$
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// $Date$
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// $Revision$
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#include <boost/mpl/insert_fwd.hpp>
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#include <boost/mpl/map/aux_/contains_impl.hpp>
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#include <boost/mpl/map/aux_/item.hpp>
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#include <boost/mpl/map/aux_/tag.hpp>
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#include <boost/mpl/aux_/na.hpp>
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#include <boost/mpl/aux_/config/typeof.hpp>
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namespace boost { namespace mpl {
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#if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
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namespace aux {
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template< typename Map, typename Pair >
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struct map_insert_impl
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: if_<
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contains_impl<aux::map_tag>::apply<Map,Pair>
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, Map
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, m_item<
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typename Pair::first
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, typename Pair::second
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, Map
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>
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>
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{
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};
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}
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template<>
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struct insert_impl< aux::map_tag >
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{
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template<
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typename Map
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, typename PosOrKey
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, typename KeyOrNA
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>
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struct apply
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: aux::map_insert_impl<
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Map
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, typename if_na<KeyOrNA,PosOrKey>::type
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>
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{
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};
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};
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#endif
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}}
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#endif // BOOST_MPL_MAP_AUX_INSERT_IMPL_HPP_INCLUDED
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