235 lines
6.1 KiB
C++
235 lines
6.1 KiB
C++
|
|
#if !defined(BOOST_PP_IS_ITERATING)
|
|
|
|
///// header body
|
|
|
|
#ifndef BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
|
|
#define BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
|
|
|
|
// Copyright Aleksey Gurtovoy 2000-2008
|
|
//
|
|
// 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: apply_wrap.hpp 49272 2008-10-11 06:50:46Z agurtovoy $
|
|
// $Date: 2008-10-11 02:50:46 -0400 (Sat, 11 Oct 2008) $
|
|
// $Revision: 49272 $
|
|
|
|
#if !defined(BOOST_MPL_PREPROCESSING_MODE)
|
|
# include <boost/mpl/aux_/arity.hpp>
|
|
# include <boost/mpl/aux_/has_apply.hpp>
|
|
# include <boost/mpl/aux_/na.hpp>
|
|
# include <boost/mpl/aux_/msvc_never_true.hpp>
|
|
#endif
|
|
|
|
#include <boost/mpl/aux_/config/use_preprocessed.hpp>
|
|
|
|
#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
|
|
&& !defined(BOOST_MPL_PREPROCESSING_MODE)
|
|
|
|
# define BOOST_MPL_PREPROCESSED_HEADER apply_wrap.hpp
|
|
# include <boost/mpl/aux_/include_preprocessed.hpp>
|
|
|
|
#else
|
|
|
|
# include <boost/mpl/limits/arity.hpp>
|
|
# include <boost/mpl/aux_/preprocessor/params.hpp>
|
|
# include <boost/mpl/aux_/preprocessor/enum.hpp>
|
|
# include <boost/mpl/aux_/preprocessor/add.hpp>
|
|
# include <boost/mpl/aux_/config/bcc.hpp>
|
|
# include <boost/mpl/aux_/config/ctps.hpp>
|
|
# include <boost/mpl/aux_/config/dtp.hpp>
|
|
# include <boost/mpl/aux_/config/eti.hpp>
|
|
# include <boost/mpl/aux_/config/msvc.hpp>
|
|
# include <boost/mpl/aux_/config/workaround.hpp>
|
|
|
|
# include <boost/preprocessor/comma_if.hpp>
|
|
# include <boost/preprocessor/logical/and.hpp>
|
|
# include <boost/preprocessor/inc.hpp>
|
|
# include <boost/preprocessor/iterate.hpp>
|
|
|
|
|
|
namespace boost { namespace mpl {
|
|
|
|
// local macros, #undef-ined at the end of the header
|
|
# define AUX778076_APPLY_WRAP_PARAMS(n, param) \
|
|
BOOST_MPL_PP_PARAMS(n, param) \
|
|
/**/
|
|
|
|
# define AUX778076_APPLY_WRAP_SPEC_PARAMS(n, param) \
|
|
BOOST_MPL_PP_ENUM(BOOST_PP_INC(n), param) \
|
|
/**/
|
|
|
|
|
|
#define BOOST_PP_ITERATION_PARAMS_1 \
|
|
(3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply_wrap.hpp>))
|
|
#include BOOST_PP_ITERATE()
|
|
|
|
|
|
# undef AUX778076_APPLY_WRAP_SPEC_PARAMS
|
|
# undef AUX778076_APPLY_WRAP_PARAMS
|
|
|
|
}}
|
|
|
|
#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
|
|
#endif // BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
|
|
|
|
///// iteration, depth == 1
|
|
|
|
// For gcc 4.4 compatability, we must include the
|
|
// BOOST_PP_ITERATION_DEPTH test inside an #else clause.
|
|
#else // BOOST_PP_IS_ITERATING
|
|
#if BOOST_PP_ITERATION_DEPTH() == 1
|
|
|
|
# define i_ BOOST_PP_FRAME_ITERATION(1)
|
|
|
|
# if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
|
// MSVC version
|
|
|
|
#define AUX778076_MSVC_DTW_NAME BOOST_PP_CAT(msvc_apply,i_)
|
|
#define AUX778076_MSVC_DTW_ORIGINAL_NAME apply
|
|
#define AUX778076_MSVC_DTW_ARITY i_
|
|
#include <boost/mpl/aux_/msvc_dtw.hpp>
|
|
|
|
template<
|
|
typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
|
|
>
|
|
struct BOOST_PP_CAT(apply_wrap,i_)
|
|
{
|
|
// Metafunction forwarding confuses vc6
|
|
typedef typename BOOST_PP_CAT(msvc_apply,i_)<F>::template result_<
|
|
AUX778076_APPLY_WRAP_PARAMS(i_, T)
|
|
>::type type;
|
|
};
|
|
|
|
# elif defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
|
|
// MWCW/Borland version
|
|
|
|
template<
|
|
int N, typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
|
|
>
|
|
struct BOOST_PP_CAT(apply_wrap_impl,i_);
|
|
|
|
#define BOOST_PP_ITERATION_PARAMS_2 \
|
|
(3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY - i_, <boost/mpl/apply_wrap.hpp>))
|
|
#include BOOST_PP_ITERATE()
|
|
|
|
template<
|
|
typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
|
|
>
|
|
struct BOOST_PP_CAT(apply_wrap,i_)
|
|
: BOOST_PP_CAT(apply_wrap_impl,i_)<
|
|
::boost::mpl::aux::arity<F,i_>::value
|
|
, F
|
|
BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
|
|
>::type
|
|
{
|
|
};
|
|
|
|
# else
|
|
// ISO98 C++, with minor concession to vc7
|
|
|
|
template<
|
|
typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
|
|
#if i_ == 0
|
|
, typename has_apply_ = typename aux::has_apply<F>::type
|
|
#endif
|
|
>
|
|
struct BOOST_PP_CAT(apply_wrap,i_)
|
|
// metafunction forwarding confuses MSVC 7.0
|
|
#if !BOOST_WORKAROUND(BOOST_MSVC, == 1300)
|
|
: F::template apply< AUX778076_APPLY_WRAP_PARAMS(i_, T) >
|
|
{
|
|
#else
|
|
{
|
|
typedef typename F::template apply<
|
|
AUX778076_APPLY_WRAP_PARAMS(i_, T)
|
|
>::type type;
|
|
#endif
|
|
};
|
|
|
|
#if i_ == 0 && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
|
|
template< typename F >
|
|
struct BOOST_PP_CAT(apply_wrap,i_)<F,true_>
|
|
: F::apply
|
|
{
|
|
};
|
|
#endif
|
|
|
|
# endif // workarounds
|
|
|
|
#if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
|
|
/// workaround for ETI bug
|
|
template<>
|
|
struct BOOST_PP_CAT(apply_wrap,i_)<AUX778076_APPLY_WRAP_SPEC_PARAMS(i_, int)>
|
|
{
|
|
typedef int type;
|
|
};
|
|
#endif
|
|
|
|
# undef i_
|
|
|
|
///// iteration, depth == 2
|
|
|
|
#elif BOOST_PP_ITERATION_DEPTH() == 2
|
|
|
|
# define j_ BOOST_PP_FRAME_ITERATION(2)
|
|
|
|
#if i_ == 0 && j_ == 0 \
|
|
&& defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) \
|
|
&& !defined(BOOST_MPL_CFG_NO_HAS_APPLY)
|
|
|
|
template< typename F, bool F_has_apply >
|
|
struct apply_wrap_impl0_bcb {
|
|
typedef typename F::template apply< na > type;
|
|
};
|
|
|
|
template< typename F >
|
|
struct apply_wrap_impl0_bcb< F, true > {
|
|
typedef typename F::apply type;
|
|
};
|
|
|
|
template<
|
|
typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
|
|
>
|
|
struct BOOST_PP_CAT(apply_wrap_impl,i_)<
|
|
BOOST_MPL_PP_ADD(i_, j_)
|
|
, F
|
|
BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
|
|
>
|
|
{
|
|
typedef apply_wrap_impl0_bcb< F, aux::has_apply< F >::value >::type type;
|
|
};
|
|
#else
|
|
|
|
template<
|
|
typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
|
|
>
|
|
struct BOOST_PP_CAT(apply_wrap_impl,i_)<
|
|
BOOST_MPL_PP_ADD(i_, j_)
|
|
, F
|
|
BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
|
|
>
|
|
{
|
|
typedef typename F::template apply<
|
|
AUX778076_APPLY_WRAP_PARAMS(i_, T)
|
|
#if i_ == 0 && j_ == 0
|
|
/// since the defaults are "lost", we have to pass *something* even for nullary
|
|
/// metafunction classes
|
|
na
|
|
#else
|
|
BOOST_PP_COMMA_IF(BOOST_PP_AND(i_, j_)) BOOST_MPL_PP_ENUM(j_, na)
|
|
#endif
|
|
> type;
|
|
};
|
|
|
|
#endif
|
|
|
|
# undef j_
|
|
|
|
#endif // BOOST_PP_ITERATION_DEPTH()
|
|
#endif // BOOST_PP_IS_ITERATING
|