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/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2007 Dan Marsden
Copyright (c) 2009-2010 Christopher Schmidt
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)
This is an auto-generated file. Do not edit!
==============================================================================*/
# if BOOST_WORKAROUND (BOOST_MSVC, < 1500)
# define BOOST_FUSION_FOLD_IMPL_ENABLER(T) void
# else
# define BOOST_FUSION_FOLD_IMPL_ENABLER(T) typename T::type
# endif
namespace boost { namespace fusion
{
namespace detail
{
template<int SeqSize, typename It, typename State, typename F, typename = void
# if BOOST_WORKAROUND (BOOST_MSVC, < 1500)
, bool = SeqSize == 0
# endif
>
struct result_of_it_fold
{};
template<typename It, typename State, typename F>
struct result_of_it_fold<0,It,State,F
, typename boost::enable_if_has_type<BOOST_FUSION_FOLD_IMPL_ENABLER(State)>::type
# if BOOST_WORKAROUND (BOOST_MSVC, < 1500)
, true
# endif
>
{
typedef typename State::type type;
};
template<int SeqSize, typename It, typename State, typename F>
struct result_of_it_fold<SeqSize,It,State,F
, typename boost::enable_if_has_type<
# if BOOST_WORKAROUND (BOOST_MSVC, >= 1500)
typename boost::disable_if_c<SeqSize == 0, State>::type::type
# else
BOOST_FUSION_FOLD_IMPL_ENABLER(State)
# endif
>::type
# if BOOST_WORKAROUND (BOOST_MSVC, < 1500)
, false
# endif
>
: result_of_it_fold<
SeqSize-1
, typename result_of::next<It>::type
, boost::result_of<
F(
typename add_reference<typename State::type>::type,
typename fusion::result_of::deref<It const>::type
)
>
, F
>
{};
template<typename It, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename result_of_it_fold<
0
, It
, State
, F
>::type
it_fold(mpl::int_<0>, It const&, typename State::type state, F&)
{
return state;
}
template<typename It, typename State, typename F, int SeqSize>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename lazy_enable_if_c<
SeqSize != 0
, result_of_it_fold<
SeqSize
, It
, State
, F
>
>::type
it_fold(mpl::int_<SeqSize>, It const& it, typename State::type state, F& f)
{
return it_fold<
typename result_of::next<It>::type
, boost::result_of<
F(
typename add_reference<typename State::type>::type,
typename fusion::result_of::deref<It const>::type
)
>
, F
>(
mpl::int_<SeqSize-1>()
, fusion::next(it)
, f(state, fusion::deref(it))
, f
);
}
template<typename Seq, typename State, typename F
, bool = traits::is_sequence<Seq>::value
, bool = traits::is_segmented<Seq>::value>
struct result_of_fold
{};
template<typename Seq, typename State, typename F>
struct result_of_fold<Seq, State, F, true, false>
: result_of_it_fold<
result_of::size<Seq>::value
, typename result_of::begin<Seq>::type
, add_reference<State>
, F
>
{};
template<typename Seq, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename result_of_fold<Seq, State, F>::type
fold(Seq& seq, State& state, F& f)
{
return it_fold<
typename result_of::begin<Seq>::type
, add_reference<State>
, F
>(
typename result_of::size<Seq>::type()
, fusion::begin(seq)
, state
, f
);
}
}
namespace result_of
{
template<typename Seq, typename State, typename F>
struct fold
: detail::result_of_fold<Seq, State, F>
{};
}
template<typename Seq, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename result_of::fold<
Seq
, State const
, F
>::type
fold(Seq& seq, State const& state, F f)
{
return detail::fold<Seq, State const, F>(seq, state, f);
}
template<typename Seq, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename result_of::fold<
Seq const
, State const
, F
>::type
fold(Seq const& seq, State const& state, F f)
{
return detail::fold<Seq const, State const, F>(seq, state, f);
}
template<typename Seq, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename result_of::fold<
Seq
, State
, F
>::type
fold(Seq& seq, State& state, F f)
{
return detail::fold<Seq, State, F>(seq, state, f);
}
template<typename Seq, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename result_of::fold<
Seq const
, State
, F
>::type
fold(Seq const& seq, State& state, F f)
{
return detail::fold<Seq const, State, F>(seq, state, f);
}
}}
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