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make for_each aware of segments

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[SVN r73899]
This commit is contained in:
Eric Niebler
2011-08-18 22:09:59 +00:00
parent b8bb98a36b
commit 5ff6210759
5 changed files with 56 additions and 41 deletions
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12
include/boost/fusion/algorithm/iteration/detail/for_each.hpp
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@ -13,6 +13,7 @@
#include <boost/fusion/iterator/next.hpp>
#include <boost/fusion/iterator/deref.hpp>
#include <boost/fusion/iterator/distance.hpp>
#include <boost/fusion/support/category_of.hpp>
#include <boost/mpl/bool.hpp>
namespace boost { namespace fusion {
@ -36,7 +37,7 @@ namespace detail
template <typename Sequence, typename F, typename Tag>
inline void
for_each(Sequence& seq, F const& f, Tag)
for_each_dispatch(Sequence& seq, F const& f, Tag)
{
detail::for_each_linear(
fusion::begin(seq)
@ -117,12 +118,19 @@ namespace detail
template <typename Sequence, typename F>
inline void
for_each(Sequence& seq, F const& f, random_access_traversal_tag)
for_each_dispatch(Sequence& seq, F const& f, random_access_traversal_tag)
{
typedef typename result_of::begin<Sequence>::type begin;
typedef typename result_of::end<Sequence>::type end;
for_each_unrolled<result_of::distance<begin, end>::type::value>::call(fusion::begin(seq), f);
}
template <typename Sequence, typename F>
inline void
for_each(Sequence& seq, F const& f, mpl::false_) // unsegmented implementation
{
detail::for_each_dispatch(seq, f, typename traits::category_of<Sequence>::type());
}
}}}

40
include/boost/fusion/algorithm/iteration/ext_/for_each_s.hpp → include/boost/fusion/algorithm/iteration/detail/segmented_for_each.hpp
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@ -4,11 +4,12 @@
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_FOR_EACH_S_HPP_INCLUDED)
#define BOOST_FUSION_FOR_EACH_S_HPP_INCLUDED
#if !defined(BOOST_FUSION_SEGMENTED_FOR_EACH_HPP_INCLUDED)
#define BOOST_FUSION_SEGMENTED_FOR_EACH_HPP_INCLUDED
#include <boost/mpl/bool.hpp>
#include <boost/fusion/support/void.hpp>
#include <boost/fusion/algorithm/iteration/for_each.hpp>
#include <boost/fusion/algorithm/iteration/for_each_fwd.hpp>
#include <boost/fusion/support/segmented_fold_until.hpp>
namespace boost { namespace fusion { namespace detail
@ -35,32 +36,13 @@ namespace boost { namespace fusion { namespace detail
}
};
};
template <typename Sequence, typename F>
inline void
for_each(Sequence& seq, F const& f, mpl::true_) // segmented implementation
{
fusion::segmented_fold_until(seq, void_(), segmented_for_each_fun<F>(f));
}
}}}
namespace boost { namespace fusion
{
namespace result_of
{
template <typename Sequence, typename F>
struct for_each_s
{
typedef void type;
};
}
template <typename Sequence, typename F>
inline void
for_each_s(Sequence& seq, F const& f)
{
fusion::segmented_fold_until(seq, void_(), detail::segmented_for_each_fun<F>(f));
}
template <typename Sequence, typename F>
inline void
for_each_s(Sequence const& seq, F const& f)
{
fusion::segmented_fold_until(seq, void_(), detail::segmented_for_each_fun<F>(f));
}
}}
#endif

14
include/boost/fusion/algorithm/iteration/for_each.hpp
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@ -9,11 +9,11 @@
#define BOOST_FUSION_FOR_EACH_20070527_0943
#include <boost/fusion/algorithm/iteration/detail/for_each.hpp>
#include <boost/fusion/algorithm/iteration/detail/segmented_for_each.hpp>
#include <boost/fusion/support/is_segmented.hpp>
#include <boost/fusion/support/category_of.hpp>
namespace boost { namespace fusion {
namespace boost { namespace fusion
{
namespace result_of
{
template <typename Sequence, typename F>
@ -23,20 +23,18 @@ namespace boost { namespace fusion {
};
}
struct random_access_traversal_tag;
template <typename Sequence, typename F>
inline void
for_each(Sequence& seq, F const& f)
{
detail::for_each(seq, f, typename traits::category_of<Sequence>::type());
detail::for_each(seq, f, typename traits::is_segmented<Sequence>::type());
}
template <typename Sequence, typename F>
inline void
for_each(Sequence const& seq, F const& f)
{
detail::for_each(seq, f, typename traits::category_of<Sequence>::type());
detail::for_each(seq, f, typename traits::is_segmented<Sequence>::type());
}
}}

27
include/boost/fusion/algorithm/iteration/for_each_fwd.hpp Normal file
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@ -0,0 +1,27 @@
/*=============================================================================
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_FOR_EACH_FWD_HPP_INCLUDED)
#define BOOST_FUSION_FOR_EACH_FWD_HPP_INCLUDED
namespace boost { namespace fusion
{
namespace result_of
{
template <typename Sequence, typename F>
struct for_each;
}
template <typename Sequence, typename F>
void
for_each(Sequence& seq, F const& f);
template <typename Sequence, typename F>
void
for_each(Sequence const& seq, F const& f);
}}
#endif