boost/fusion/container/map/detail/cpp03/convert_impl.hpp
/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2005-2006 Dan Marsden
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(FUSION_CONVERT_IMPL_09232005_1340)
#define FUSION_CONVERT_IMPL_09232005_1340
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/container/map/detail/cpp03/as_map.hpp>
#include <boost/fusion/container/map/detail/cpp03/map.hpp>
#include <boost/fusion/sequence/intrinsic/begin.hpp>
#include <boost/fusion/sequence/intrinsic/size.hpp>
namespace boost { namespace fusion
{
struct map_tag;
namespace extension
{
template <typename T>
struct convert_impl;
template <>
struct convert_impl<map_tag>
{
template <typename Sequence>
struct apply
{
typedef typename
detail::as_map<
result_of::size<Sequence>::value
, is_base_of<
associative_tag
, typename traits::category_of<Sequence>::type>::value
>
gen;
typedef typename gen::
template apply<typename result_of::begin<Sequence>::type>::type
type;
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static type call(Sequence& seq)
{
return gen::call(fusion::begin(seq));
}
};
};
}
}}
#endif