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Overhaul the fusion::fold family to make SFINAE-friendly.

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This commit is contained in:
Kohei Takahashi
2015-09-04 00:51:56 +09:00
parent efd595fd10
commit d3449ab5e5
12 changed files with 131 additions and 489 deletions
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15
include/boost/fusion/algorithm/iteration/accumulate.hpp
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@ -1,5 +1,6 @@
/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2015 Kohei Takahashi
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)
@ -10,8 +11,6 @@
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/algorithm/iteration/accumulate_fwd.hpp>
#include <boost/fusion/algorithm/iteration/fold.hpp>
#include <boost/fusion/support/is_sequence.hpp>
#include <boost/utility/enable_if.hpp>
namespace boost { namespace fusion
{
@ -27,11 +26,7 @@ namespace boost { namespace fusion
template <typename Sequence, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename
lazy_enable_if<
traits::is_sequence<Sequence>
, result_of::accumulate<Sequence, State const, F>
>::type
inline typename result_of::accumulate<Sequence, State const, F>::type
accumulate(Sequence& seq, State const& state, F f)
{
return fusion::fold(seq, state, f);
@ -39,11 +34,7 @@ namespace boost { namespace fusion
template <typename Sequence, typename State, typename F>
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
inline typename
lazy_enable_if<
traits::is_sequence<Sequence>
, result_of::accumulate<Sequence const, State const, F>
>::type
inline typename result_of::accumulate<Sequence const, State const, F>::type
accumulate(Sequence const& seq, State const& state, F f)
{
return fusion::fold(seq, state, f);