ext-boost/boost/mpl/map/aux_/numbered.hpp
2014-12-07 23:50:51 +01:00

111 lines
2.4 KiB
C++

// NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
#if !defined(BOOST_PP_IS_ITERATING)
// Copyright Aleksey Gurtovoy 2000-2004
//
// 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)
//
// See http://www.boost.org/libs/mpl for documentation.
// $Id$
// $Date$
// $Revision$
#else
#include <boost/mpl/aux_/config/typeof.hpp>
#include <boost/mpl/aux_/config/ctps.hpp>
#include <boost/preprocessor/enum_params.hpp>
#include <boost/preprocessor/dec.hpp>
#include <boost/preprocessor/cat.hpp>
#define i_ BOOST_PP_FRAME_ITERATION(1)
# define AUX778076_MAP_TAIL(map, i_, P) \
BOOST_PP_CAT(map,i_)< \
BOOST_PP_ENUM_PARAMS(i_, P) \
> \
/**/
#if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
template<
BOOST_PP_ENUM_PARAMS(i_, typename P)
>
struct BOOST_PP_CAT(map,i_)
: m_item<
typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::first
, typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::second
, AUX778076_MAP_TAIL(map,BOOST_PP_DEC(i_),P)
>
{
typedef BOOST_PP_CAT(map,i_) type;
};
#else // "brute force" implementation
# if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template< typename Map>
struct m_at<Map,BOOST_PP_DEC(i_)>
{
typedef typename Map::BOOST_PP_CAT(item,BOOST_PP_DEC(i_)) type;
};
template< typename Key, typename T, typename Base >
struct m_item<i_,Key,T,Base>
: m_item_<Key,T,Base>
{
typedef pair<Key,T> BOOST_PP_CAT(item,BOOST_PP_DEC(i_));
};
# else
template<>
struct m_at_impl<BOOST_PP_DEC(i_)>
{
template< typename Map > struct result_
{
typedef typename Map::BOOST_PP_CAT(item,BOOST_PP_DEC(i_)) type;
};
};
template<>
struct m_item_impl<i_>
{
template< typename Key, typename T, typename Base > struct result_
: m_item_<Key,T,Base>
{
typedef pair<Key,T> BOOST_PP_CAT(item,BOOST_PP_DEC(i_));
};
};
# endif
template<
BOOST_PP_ENUM_PARAMS(i_, typename P)
>
struct BOOST_PP_CAT(map,i_)
: m_item<
i_
, typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::first
, typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::second
, AUX778076_MAP_TAIL(map,BOOST_PP_DEC(i_),P)
>
{
typedef BOOST_PP_CAT(map,i_) type;
};
#endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
# undef AUX778076_MAP_TAIL
#undef i_
#endif // BOOST_PP_IS_ITERATING