74 lines
2.1 KiB
Plaintext
74 lines
2.1 KiB
Plaintext
|
/*=============================================================================
|
||
|
|
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_CONSTEXPR 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_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
||
|
|
static type call(Sequence & seq)
|
||
|
|
{
|
||
|
|
return seq.sequence;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
};
|
||
|
|
}}}
|
||
|
|
|
||
|
|
#endif
|