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#ifndef BOOST_MPL_AUX_INSERT_RANGE_IMPL_HPP_INCLUDED
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#define BOOST_MPL_AUX_INSERT_RANGE_IMPL_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2000-2004
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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/placeholders.hpp>
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#include <boost/mpl/fold.hpp>
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#include <boost/mpl/insert.hpp>
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#include <boost/mpl/clear.hpp>
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#include <boost/mpl/joint_view.hpp>
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#include <boost/mpl/iterator_range.hpp>
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#include <boost/mpl/aux_/na_spec.hpp>
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#include <boost/mpl/aux_/iter_push_front.hpp>
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#include <boost/mpl/aux_/traits_lambda_spec.hpp>
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#include <boost/mpl/aux_/config/forwarding.hpp>
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#include <boost/type_traits/same_traits.hpp>
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namespace boost { namespace mpl {
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// default implementation; conrete sequences might override it by
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// specializing either the 'insert_range_impl' or the primary
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// 'insert_range' template
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template< typename Tag >
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struct insert_range_impl
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{
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template<
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typename Sequence
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, typename Pos
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, typename Range
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>
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struct apply
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#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
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: reverse_fold<
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joint_view<
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iterator_range<typename begin<Sequence>::type,Pos>
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, joint_view<
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Range
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, iterator_range<Pos,typename end<Sequence>::type>
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>
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>
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, typename clear<Sequence>::type
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, insert<_1, begin<_1>, _2>
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>
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{
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#else
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{
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typedef typename reverse_fold<
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joint_view<
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iterator_range<typename begin<Sequence>::type,Pos>
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, joint_view<
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Range
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, iterator_range<Pos,typename end<Sequence>::type>
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>
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>
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, typename clear<Sequence>::type
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, insert<_1, begin<_1>, _2>
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>::type type;
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#endif
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};
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};
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BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(3,insert_range_impl)
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}}
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#endif // BOOST_MPL_AUX_INSERT_RANGE_IMPL_HPP_INCLUDED
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