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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_SIZE_08112006_1141)
#define BOOST_FUSION_SEGMENTED_SIZE_08112006_1141
#include <boost/fusion/support/config.hpp>
#include <boost/type_traits/add_const.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/mpl/fold.hpp>
#include <boost/mpl/plus.hpp>
#include <boost/mpl/size_t.hpp>
#include <boost/mpl/placeholders.hpp>
#include <boost/fusion/sequence/intrinsic_fwd.hpp>
#include <boost/fusion/mpl/begin.hpp>
#include <boost/fusion/mpl/end.hpp>
#include <boost/fusion/support/is_segmented.hpp>
namespace boost { namespace fusion { namespace detail
{
///////////////////////////////////////////////////////////////////////////
// calculates the size of any segmented data structure.
template<typename Sequence>
struct segmented_size;
///////////////////////////////////////////////////////////////////////////
template<typename Sequence, bool IsSegmented = traits::is_segmented<Sequence>::value>
struct segmented_size_impl
: mpl::fold<
typename remove_reference<
typename add_const<
typename result_of::segments<Sequence>::type
>::type
>::type
, mpl::size_t<0>
, mpl::plus<mpl::_1, segmented_size<remove_reference<mpl::_2> > >
>::type
{};
template<typename Sequence>
struct segmented_size_impl<Sequence, false>
: result_of::size<Sequence>::type
{};
template<typename Sequence>
struct segmented_size
: segmented_size_impl<Sequence>
{};
}}}
#endif
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