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/*=============================================================================
Copyright (c) 2001-2011 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(FUSION_CONVERT_MAIN_09232005_1340)
#define FUSION_CONVERT_MAIN_09232005_1340
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/container/map/map.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename It, bool is_assoc>
struct pair_from
{
typedef typename result_of::value_of<It>::type type;
BOOST_FUSION_GPU_ENABLED
static inline type call(It const& it)
{
return *it;
}
};
template <typename It>
struct pair_from<It, true>
{
typedef typename result_of::key_of<It>::type key_type;
typedef typename result_of::value_of_data<It>::type data_type;
typedef typename fusion::pair<key_type, data_type> type;
BOOST_FUSION_GPU_ENABLED
static inline type call(It const& it)
{
return type(deref_data(it));
}
};
}}}
///////////////////////////////////////////////////////////////////////////////
// Without variadics, we will use the PP version
///////////////////////////////////////////////////////////////////////////////
#if !defined(BOOST_FUSION_HAS_VARIADIC_MAP)
# include <boost/fusion/container/map/detail/cpp03/convert.hpp>
#else
///////////////////////////////////////////////////////////////////////////////
// C++11 variadic implementation
///////////////////////////////////////////////////////////////////////////////
#include <boost/fusion/container/map/detail/build_map.hpp>
namespace boost { namespace fusion
{
namespace result_of
{
template <typename Sequence>
struct as_map :
detail::build_map<
typename result_of::begin<Sequence>::type
, typename result_of::end<Sequence>::type
, is_base_of<
associative_tag
, typename traits::category_of<Sequence>::type>::value
>
{
};
}
template <typename Sequence>
BOOST_FUSION_GPU_ENABLED
inline typename result_of::as_map<Sequence>::type
as_map(Sequence& seq)
{
typedef result_of::as_map<Sequence> gen;
return gen::call(fusion::begin(seq), fusion::end(seq));
}
template <typename Sequence>
BOOST_FUSION_GPU_ENABLED
inline typename result_of::as_map<Sequence const>::type
as_map(Sequence const& seq)
{
typedef result_of::as_map<Sequence const> gen;
return gen::call(fusion::begin(seq), fusion::end(seq));
}
namespace extension
{
template <typename T>
struct convert_impl;
template <>
struct convert_impl<map_tag>
{
template <typename Sequence>
struct apply
{
typedef typename
result_of::as_map<Sequence>::type
type;
BOOST_FUSION_GPU_ENABLED
static type call(Sequence& seq)
{
typedef result_of::as_map<Sequence> gen;
return gen::call(fusion::begin(seq), fusion::end(seq));
}
};
};
}
}}
#endif
#endif
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