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/*=============================================================================
Copyright (c) 2011 Eric Niebler
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)
==============================================================================*/
#if !defined(BOOST_FUSION_SEGMENTED_SEQUENCE_HPP_INCLUDED)
#define BOOST_FUSION_SEGMENTED_SEQUENCE_HPP_INCLUDED
#include <boost/fusion/support/config.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/fusion/support/tag_of.hpp>
#include <boost/fusion/sequence/intrinsic_fwd.hpp>
namespace boost { namespace fusion { namespace detail
{
struct segment_sequence_tag {};
// Here, Sequence is a sequence of ranges (which may or may not be
// segmented).
template<typename Sequence>
struct segment_sequence
: sequence_base<segment_sequence<Sequence> >
{
typedef fusion_sequence_tag tag;
typedef segment_sequence_tag fusion_tag;
typedef typename Sequence::is_view is_view;
typedef typename Sequence::category category;
typedef Sequence sequence_type;
sequence_type sequence;
BOOST_FUSION_GPU_ENABLED explicit segment_sequence(Sequence const & seq)
: sequence(seq)
{}
};
}
namespace extension
{
template<typename Tag>
struct is_segmented_impl;
template<>
struct is_segmented_impl<detail::segment_sequence_tag>
{
template<typename Sequence>
struct apply
: mpl::true_
{};
};
template<typename Tag>
struct segments_impl;
template<>
struct segments_impl<detail::segment_sequence_tag>
{
template<typename Sequence>
struct apply
{
typedef typename Sequence::sequence_type type;
BOOST_FUSION_GPU_ENABLED
static type call(Sequence & seq)
{
return seq.sequence;
}
};
};
}}}
#endif
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