/*=============================================================================
Copyright (c) 2003 Joel de Guzman
Use, modification and distribution is subject to 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(FUSION_ITERATOR_DETAIL_TYPE_SEQUENCE_ITERATOR_DEREF_TRAITS_HPP)
#define FUSION_ITERATOR_DETAIL_TYPE_SEQUENCE_ITERATOR_DEREF_TRAITS_HPP
#include <boost/spirit/fusion/detail/config.hpp>
#include <boost/spirit/fusion/detail/access.hpp>
#include <boost/mpl/deref.hpp>
namespace boost { namespace fusion
{
namespace type_sequence_iterator_detail
{
template <typename Iterator>
struct deref_traits_impl
{
typedef typename mpl::deref<
typename Iterator::iterator_type>::type
type;
static type
call(Iterator);
};
template <typename Iterator>
inline typename deref_traits_impl<Iterator>::type
deref_traits_impl<Iterator>::call(Iterator)
{
FUSION_RETURN_DEFAULT_CONSTRUCTED;
}
}
struct type_sequence_iterator_tag;
namespace meta
{
template <typename Tag>
struct deref_impl;
template <>
struct deref_impl<type_sequence_iterator_tag>
{
template <typename Iterator>
struct apply
: type_sequence_iterator_detail::deref_traits_impl<Iterator> {};
};
}
}}
#endif