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#ifndef BOOST_MPL_INSERT_IMPL_HPP_INCLUDED
#define BOOST_MPL_INSERT_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: insert_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
// $Revision: 49267 $
#include <boost/mpl/reverse_fold.hpp>
#include <boost/mpl/iterator_range.hpp>
#include <boost/mpl/clear.hpp>
#include <boost/mpl/push_front.hpp>
#include <boost/mpl/aux_/na_spec.hpp>
#include <boost/mpl/aux_/traits_lambda_spec.hpp>
#include <boost/type_traits/is_same.hpp>
namespace boost { namespace mpl {
// default implementation; conrete sequences might override it by
// specializing either the 'insert_impl' or the primary 'insert' template
template< typename Tag >
struct insert_impl
{
template<
typename Sequence
, typename Pos
, typename T
>
struct apply
{
typedef iterator_range<
typename begin<Sequence>::type
, Pos
> first_half_;
typedef iterator_range<
Pos
, typename end<Sequence>::type
> second_half_;
typedef typename reverse_fold<
second_half_
, typename clear<Sequence>::type
, push_front<_,_>
>::type half_sequence_;
typedef typename reverse_fold<
first_half_
, typename push_front<half_sequence_,T>::type
, push_front<_,_>
>::type type;
};
};
BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(3,insert_impl)
}}
#endif // BOOST_MPL_INSERT_IMPL_HPP_INCLUDED
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84 entries across 84 versions & 1 rubygems