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/*=============================================================================
Copyright (c) 2005-2013 Joel de Guzman
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_BUILD_DEQUE_02032013_1921)
#define BOOST_FUSION_BUILD_DEQUE_02032013_1921
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/iterator/equal_to.hpp>
#include <boost/fusion/iterator/next.hpp>
#include <boost/fusion/iterator/value_of.hpp>
#include <boost/fusion/iterator/deref.hpp>
#include <boost/fusion/sequence/intrinsic/begin.hpp>
#include <boost/fusion/sequence/intrinsic/end.hpp>
#include <boost/fusion/container/deque/front_extended_deque.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename First, typename Last
, bool is_empty = result_of::equal_to<First, Last>::value>
struct build_deque;
template <typename First, typename Last>
struct build_deque<First, Last, true>
{
typedef deque<> type;
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static type
call(First const&, Last const&)
{
return type();
}
};
template <typename T, typename Rest>
struct push_front_deque;
template <typename T, typename ...Rest>
struct push_front_deque<T, deque<Rest...>>
{
typedef deque<T, Rest...> type;
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static type
call(T const& first, deque<Rest...> const& rest)
{
return type(front_extended_deque<deque<Rest...>, T>(rest, first));
}
};
template <typename First, typename Last>
struct build_deque<First, Last, false>
{
typedef
build_deque<typename result_of::next<First>::type, Last>
next_build_deque;
typedef push_front_deque<
typename result_of::value_of<First>::type
, typename next_build_deque::type>
push_front;
typedef typename push_front::type type;
BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static type
call(First const& f, Last const& l)
{
typename result_of::value_of<First>::type v = *f;
return push_front::call(
v, next_build_deque::call(fusion::next(f), l));
}
};
}}}
#endif
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