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