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/*=============================================================================
Copyright (c) 2012-2014 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)
==============================================================================*/
#if !defined(BOOST_FUSION_BUILD_CONS_10172012_0130)
#define BOOST_FUSION_BUILD_CONS_10172012_0130
#include <boost/tuple/tuple.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>
namespace boost { namespace fusion { namespace detail
{
template <
typename First
, typename Last
, bool is_empty = result_of::equal_to<First, Last>::value>
struct build_tuple_cons;
template <typename First, typename Last>
struct build_tuple_cons<First, Last, true>
{
typedef boost::tuples::null_type type;
BOOST_FUSION_GPU_ENABLED
static type
call(First const&, Last const&)
{
return type();
}
};
template <typename First, typename Last>
struct build_tuple_cons<First, Last, false>
{
typedef
build_tuple_cons<typename result_of::next<First>::type, Last>
next_build_tuple_cons;
typedef boost::tuples::cons<
typename result_of::value_of<First>::type
, typename next_build_tuple_cons::type>
type;
BOOST_FUSION_GPU_ENABLED
static type
call(First const& f, Last const& l)
{
typename result_of::value_of<First>::type v = *f;
return type(v, next_build_tuple_cons::call(fusion::next(f), l));
}
};
}}}
#endif
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