forked from boostorg/fusion
2114bfca6c
Note 1: Forwarding functions are specified as a C++14 constexpr since std::forward is not a constexpr within C++11. Note 2: Though I'm not sure why it doesn't compile, some declarations are specified as a C++14 constexpr or non-constexpr. Note 3: Boost.Tuple adaptation and TR1-based tuple implementations are not constexpr.
77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*=============================================================================
|
|
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_FOLD_UNTIL_HPP_INCLUDED)
|
|
#define BOOST_FUSION_SEGMENTED_FOLD_UNTIL_HPP_INCLUDED
|
|
|
|
#include <boost/fusion/support/config.hpp>
|
|
#include <boost/type_traits/is_const.hpp>
|
|
#include <boost/utility/enable_if.hpp>
|
|
#include <boost/fusion/support/detail/segmented_fold_until_impl.hpp>
|
|
#include <boost/fusion/view/iterator_range.hpp>
|
|
#include <boost/fusion/sequence/intrinsic/begin.hpp>
|
|
#include <boost/fusion/sequence/intrinsic/end.hpp>
|
|
#include <boost/fusion/sequence/intrinsic/empty.hpp>
|
|
#include <boost/fusion/container/list/cons.hpp>
|
|
|
|
namespace boost { namespace fusion
|
|
{
|
|
//auto segmented_fold_until(seq, state, fun)
|
|
//{
|
|
// return first(segmented_fold_until_impl(seq, state, nil_, fun));
|
|
//}
|
|
|
|
namespace result_of
|
|
{
|
|
template <typename Sequence, typename State, typename Fun>
|
|
struct segmented_fold_until
|
|
{
|
|
typedef
|
|
detail::segmented_fold_until_impl<
|
|
Sequence
|
|
, State
|
|
, fusion::nil_
|
|
, Fun
|
|
>
|
|
filter;
|
|
|
|
typedef
|
|
typename filter::type
|
|
type;
|
|
};
|
|
}
|
|
|
|
template <typename Sequence, typename State, typename Fun>
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
|
inline typename
|
|
lazy_disable_if<
|
|
is_const<Sequence>
|
|
, result_of::segmented_fold_until<Sequence, State, Fun>
|
|
>::type
|
|
segmented_fold_until(Sequence& seq, State const& state, Fun const& fun)
|
|
{
|
|
typedef
|
|
typename result_of::segmented_fold_until<Sequence, State, Fun>::filter
|
|
filter;
|
|
|
|
return filter::call(seq, state, fusion::nil_(), fun);
|
|
}
|
|
|
|
template <typename Sequence, typename State, typename Fun>
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
|
inline typename result_of::segmented_fold_until<Sequence const, State, Fun>::type
|
|
segmented_fold_until(Sequence const& seq, State const& state, Fun const& fun)
|
|
{
|
|
typedef
|
|
typename result_of::segmented_fold_until<Sequence const, State, Fun>::filter
|
|
filter;
|
|
|
|
return filter::call(seq, state, fusion::nil_(), fun);
|
|
}
|
|
}}
|
|
|
|
#endif
|