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/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
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(FUSION_REVERSE_VIEW_07202005_0836)
#define FUSION_REVERSE_VIEW_07202005_0836
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/support/detail/access.hpp>
#include <boost/fusion/support/is_view.hpp>
#include <boost/fusion/support/category_of.hpp>
#include <boost/fusion/view/reverse_view/reverse_view_iterator.hpp>
#include <boost/fusion/view/reverse_view/detail/begin_impl.hpp>
#include <boost/fusion/view/reverse_view/detail/end_impl.hpp>
#include <boost/fusion/view/reverse_view/detail/at_impl.hpp>
#include <boost/fusion/view/reverse_view/detail/value_at_impl.hpp>
#include <boost/fusion/support/sequence_base.hpp>
#include <boost/fusion/sequence/intrinsic/begin.hpp>
#include <boost/fusion/sequence/intrinsic/end.hpp>
#include <boost/fusion/sequence/intrinsic/size.hpp>
#include <boost/type_traits/is_base_of.hpp>
#include <boost/static_assert.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/eval_if.hpp>
#include <boost/mpl/inherit.hpp>
#include <boost/mpl/identity.hpp>
namespace boost { namespace fusion
{
struct reverse_view_tag;
struct fusion_sequence_tag;
template <typename Sequence>
struct reverse_view : sequence_base<reverse_view<Sequence> >
{
typedef reverse_view_tag fusion_tag;
typedef fusion_sequence_tag tag; // this gets picked up by MPL
typedef mpl::true_ is_view;
typedef Sequence seq_type;
typedef typename traits::category_of<Sequence>::type category;
typedef typename result_of::begin<Sequence>::type first_type;
typedef typename result_of::end<Sequence>::type last_type;
typedef typename result_of::size<Sequence>::type size;
BOOST_STATIC_ASSERT((
is_base_of<
bidirectional_traversal_tag
, typename traits::category_of<first_type>::type>::value));
BOOST_FUSION_GPU_ENABLED
reverse_view(Sequence& in_seq)
: seq(in_seq)
{}
BOOST_FUSION_GPU_ENABLED
first_type first() const { return fusion::begin(seq); }
BOOST_FUSION_GPU_ENABLED
last_type last() const { return fusion::end(seq); }
typename mpl::if_<traits::is_view<Sequence>, Sequence, Sequence&>::type seq;
private:
// silence MSVC warning C4512: assignment operator could not be generated
reverse_view& operator= (reverse_view const&);
};
}}
#endif
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