//-----------------------------------------------------------------------------
// boost mpl/aux_/advance_forward.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2000-02
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appears in all copies and
// that both the copyright notice and this permission notice appear in
// supporting documentation. No representations are made about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
#if !defined(BOOST_PP_IS_ITERATING)
///// header body
#ifndef BOOST_MPL_AUX_ADVANCE_FORWARD_HPP_INCLUDED
#define BOOST_MPL_AUX_ADVANCE_FORWARD_HPP_INCLUDED
#include "boost/mpl/aux_/apply.hpp"
#include "boost/mpl/aux_/next.hpp"
#include "boost/mpl/aux_/config/eti.hpp"
#include "boost/mpl/aux_/config/use_preprocessed.hpp"
#if !defined(BOOST_MPL_NO_PREPROCESSED_HEADERS) && \
!defined(BOOST_MPL_PREPROCESSING_MODE)
# define BOOST_MPL_PREPROCESSED_HEADER advance_forward.hpp
# include "boost/mpl/aux_/include_preprocessed.hpp"
#else
# include "boost/mpl/limits/unrolling.hpp"
# include "boost/mpl/aux_/config/nttp.hpp"
# include "boost/preprocessor/iterate.hpp"
# include "boost/preprocessor/cat.hpp"
# include "boost/preprocessor/inc.hpp"
namespace boost {
namespace mpl {
namespace aux {
// forward declaration
template< BOOST_MPL_AUX_NTTP_DECL(long, N) > struct advance_forward;
# define BOOST_PP_ITERATION_PARAMS_1 \
(3,(0, BOOST_MPL_UNROLLING_LIMIT, "boost/mpl/aux_/advance_forward.hpp"))
# include BOOST_PP_ITERATE()
// implementation for N that exceeds BOOST_MPL_UNROLLING_LIMIT
template< BOOST_MPL_AUX_NTTP_DECL(long, N) >
struct advance_forward
{
template< typename Iterator > struct apply
{
typedef typename BOOST_MPL_AUX_APPLY1(
advance_forward<BOOST_MPL_UNROLLING_LIMIT>
, Iterator
)::type chunk_result_;
typedef typename BOOST_MPL_AUX_APPLY1(
advance_forward<(
(N - BOOST_MPL_UNROLLING_LIMIT) < 0
? 0
: N - BOOST_MPL_UNROLLING_LIMIT
)>
, chunk_result_
)::type type;
};
};
} // namespace aux
} // namespace mpl
} // namespace boost
#endif // BOOST_MPL_USE_PREPROCESSED_HEADERS
#endif // BOOST_MPL_AUX_ADVANCE_FORWARD_HPP_INCLUDED
///// iteration, depth == 1
#elif BOOST_PP_ITERATION_DEPTH() == 1
#define i BOOST_PP_FRAME_ITERATION(1)
template<>
struct advance_forward< BOOST_PP_FRAME_ITERATION(1) >
{
template< typename Iterator > struct apply
{
typedef Iterator iter0;
#if i > 0
# define BOOST_PP_ITERATION_PARAMS_2 \
(3,(1, i, "boost/mpl/aux_/advance_forward.hpp"))
# include BOOST_PP_ITERATE()
#endif
typedef BOOST_PP_CAT(iter,i) type;
};
#if defined(BOOST_MPL_MSVC_60_ETI_BUG)
//: ETI workaround
template<> struct apply<int>
{
typedef int type;
};
#endif
};
#undef i
///// iteration, depth == 2
#elif BOOST_PP_ITERATION_DEPTH() == 2
# define AUX_ITER_0 BOOST_PP_CAT(iter,BOOST_PP_DEC(BOOST_PP_FRAME_ITERATION(2)))
# define AUX_ITER_1 BOOST_PP_CAT(iter,BOOST_PP_FRAME_ITERATION(2))
typedef typename BOOST_MPL_AUX_NEXT(AUX_ITER_0) AUX_ITER_1;
# undef AUX_ITER_1
# undef AUX_ITER_0
#endif // BOOST_PP_IS_ITERATING