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added reverse_fold/iter_fold/reverse_iter_fold (1)

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[SVN r63066]
This commit is contained in:
Christopher Schmidt
2010-06-17 21:21:37 +00:00
parent 7d14098b21
commit ea89db72cb
18 changed files with 782 additions and 304 deletions
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43
include/boost/fusion/algorithm/iteration/fold.hpp
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@ -1,48 +1,15 @@
/*=============================================================================
Copyright (c) 2001-2007 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
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_FOLD_05052005_1214)
#define BOOST_FUSION_FOLD_05052005_1214
#ifndef BOOST_FUSION_ALGORITHM_ITERATION_FOLD_HPP
#define BOOST_FUSION_ALGORITHM_ITERATION_FOLD_HPP
#include <boost/fusion/algorithm/iteration/detail/fold.hpp>
#include <boost/fusion/sequence/intrinsic/size.hpp>
#include <boost/fusion/support/category_of.hpp>
#include <boost/type_traits/is_base_of.hpp>
#include <boost/static_assert.hpp>
namespace boost { namespace fusion {
struct random_access_traversal_tag;
namespace result_of
{
template <typename Sequence, typename State, typename F>
struct fold
: fusion::detail::choose_fold<
Sequence, State, F
, is_base_of<random_access_traversal_tag, typename traits::category_of<Sequence>::type>::value>
{};
}
template <typename Sequence, typename State, typename F>
inline typename result_of::fold<Sequence, State, F>::type
fold(Sequence& seq, State const& state, F f)
{
return detail::fold(seq, state, f, typename traits::category_of<Sequence>::type());
}
template <typename Sequence, typename State, typename F>
inline typename result_of::fold<Sequence const, State, F>::type
fold(Sequence const& seq, State const& state, F f)
{
return detail::fold(seq, state, f, typename traits::category_of<Sequence>::type());
}
}}
#endif