82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2009 Hartmut Kaiser
|
|
|
|
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)
|
|
==============================================================================*/
|
|
|
|
#ifndef BOOST_PP_IS_ITERATING
|
|
|
|
#if !defined(BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM)
|
|
#define BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM
|
|
|
|
#include <climits>
|
|
#include <boost/preprocessor/cat.hpp>
|
|
#include <boost/preprocessor/repeat.hpp>
|
|
#include <boost/preprocessor/iterate.hpp>
|
|
#include <boost/preprocessor/repetition/enum_params.hpp>
|
|
#include <boost/preprocessor/repetition/enum_binary_params.hpp>
|
|
#include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
|
|
#include <boost/mpl/vector_c.hpp>
|
|
#include <boost/fusion/adapted/mpl.hpp>
|
|
#include <boost/fusion/adapted/mpl/mpl_iterator.hpp>
|
|
|
|
#define BOOST_PP_ITERATION_PARAMS_1 \
|
|
(3, (1, FUSION_MAX_VECTOR_SIZE, \
|
|
"boost/fusion/view/nview/detail/cpp03/nview_impl.hpp")) \
|
|
/**/
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
namespace boost { namespace fusion { namespace result_of
|
|
{
|
|
template <typename Sequence
|
|
, BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(FUSION_MAX_VECTOR_SIZE, int I, INT_MAX)>
|
|
struct as_nview
|
|
{
|
|
typedef mpl::vector_c<
|
|
int, BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, I)
|
|
> index_type;
|
|
typedef nview<Sequence, index_type> type;
|
|
};
|
|
}}}
|
|
|
|
#include BOOST_PP_ITERATE()
|
|
|
|
#endif
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Preprocessor vertical repetition code
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
#else // defined(BOOST_PP_IS_ITERATING)
|
|
|
|
#define N BOOST_PP_ITERATION()
|
|
|
|
#if N < FUSION_MAX_VECTOR_SIZE
|
|
namespace boost { namespace fusion { namespace result_of
|
|
{
|
|
template <typename Sequence, BOOST_PP_ENUM_PARAMS(N, int I)>
|
|
struct as_nview<Sequence, BOOST_PP_ENUM_PARAMS(N, I)>
|
|
{
|
|
typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type;
|
|
typedef nview<Sequence, index_type> type;
|
|
};
|
|
}}}
|
|
#endif
|
|
|
|
namespace boost { namespace fusion
|
|
{
|
|
template<BOOST_PP_ENUM_PARAMS(N, int I), typename Sequence>
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
|
inline nview<Sequence, mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> >
|
|
as_nview(Sequence& s)
|
|
{
|
|
typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type;
|
|
return nview<Sequence, index_type>(s);
|
|
}
|
|
|
|
}}
|
|
|
|
#undef N
|
|
|
|
#endif
|