Chris@16: 
Chris@16: #if !defined(BOOST_PP_IS_ITERATING)
Chris@16: 
Chris@16: ///// header body
Chris@16: 
Chris@16: #ifndef BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
Chris@16: #define BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2000-2008
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #if !defined(BOOST_MPL_PREPROCESSING_MODE)
Chris@16: #   include <boost/mpl/aux_/arity.hpp>
Chris@16: #   include <boost/mpl/aux_/has_apply.hpp>
Chris@16: #   include <boost/mpl/aux_/na.hpp>
Chris@16: #   include <boost/mpl/aux_/msvc_never_true.hpp>
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/mpl/aux_/config/use_preprocessed.hpp>
Chris@16: 
Chris@16: #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
Chris@16:     && !defined(BOOST_MPL_PREPROCESSING_MODE)
Chris@16: 
Chris@16: #   define BOOST_MPL_PREPROCESSED_HEADER apply_wrap.hpp
Chris@16: #   include <boost/mpl/aux_/include_preprocessed.hpp>
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16: #   include <boost/mpl/limits/arity.hpp>
Chris@16: #   include <boost/mpl/aux_/preprocessor/params.hpp>
Chris@16: #   include <boost/mpl/aux_/preprocessor/enum.hpp>
Chris@16: #   include <boost/mpl/aux_/preprocessor/add.hpp>
Chris@16: #   include <boost/mpl/aux_/config/bcc.hpp>
Chris@16: #   include <boost/mpl/aux_/config/ctps.hpp>
Chris@16: #   include <boost/mpl/aux_/config/dtp.hpp>
Chris@16: #   include <boost/mpl/aux_/config/eti.hpp>
Chris@16: #   include <boost/mpl/aux_/config/msvc.hpp>
Chris@16: #   include <boost/mpl/aux_/config/workaround.hpp>
Chris@16: 
Chris@16: #   include <boost/preprocessor/comma_if.hpp>
Chris@16: #   include <boost/preprocessor/logical/and.hpp>
Chris@16: #   include <boost/preprocessor/inc.hpp>
Chris@16: #   include <boost/preprocessor/iterate.hpp>
Chris@16: 
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: // local macros, #undef-ined at the end of the header
Chris@16: #   define AUX778076_APPLY_WRAP_PARAMS(n, param) \
Chris@16:     BOOST_MPL_PP_PARAMS(n, param) \
Chris@16:     /**/
Chris@16: 
Chris@16: #   define AUX778076_APPLY_WRAP_SPEC_PARAMS(n, param) \
Chris@16:     BOOST_MPL_PP_ENUM(BOOST_PP_INC(n), param) \
Chris@16:     /**/
Chris@16: 
Chris@16: 
Chris@16: #define BOOST_PP_ITERATION_PARAMS_1 \
Chris@16:     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply_wrap.hpp>))
Chris@16: #include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: 
Chris@16: #   undef AUX778076_APPLY_WRAP_SPEC_PARAMS
Chris@16: #   undef AUX778076_APPLY_WRAP_PARAMS
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
Chris@16: #endif // BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
Chris@16: 
Chris@16: ///// iteration, depth == 1
Chris@16: 
Chris@16: // For gcc 4.4 compatability, we must include the
Chris@16: // BOOST_PP_ITERATION_DEPTH test inside an #else clause.
Chris@16: #else // BOOST_PP_IS_ITERATING
Chris@16: #if BOOST_PP_ITERATION_DEPTH() == 1
Chris@16: 
Chris@16: #   define i_ BOOST_PP_FRAME_ITERATION(1)
Chris@16: 
Chris@16: #   if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
Chris@16: // MSVC version
Chris@16: 
Chris@16: #define AUX778076_MSVC_DTW_NAME BOOST_PP_CAT(msvc_apply,i_)
Chris@16: #define AUX778076_MSVC_DTW_ORIGINAL_NAME apply
Chris@16: #define AUX778076_MSVC_DTW_ARITY i_
Chris@16: #include <boost/mpl/aux_/msvc_dtw.hpp>
Chris@16: 
Chris@16: template<
Chris@16:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
Chris@16:     >
Chris@16: struct BOOST_PP_CAT(apply_wrap,i_)
Chris@16: {
Chris@16:     // Metafunction forwarding confuses vc6
Chris@16:     typedef typename BOOST_PP_CAT(msvc_apply,i_)<F>::template result_<
Chris@16:           AUX778076_APPLY_WRAP_PARAMS(i_, T)
Chris@16:         >::type type;
Chris@16: };
Chris@16: 
Chris@16: #   elif defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
Chris@16: // MWCW/Borland version
Chris@16: 
Chris@16: template<
Chris@16:       int N, typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
Chris@16:     >
Chris@16: struct BOOST_PP_CAT(apply_wrap_impl,i_);
Chris@16: 
Chris@16: #define BOOST_PP_ITERATION_PARAMS_2 \
Chris@16:     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY - i_, <boost/mpl/apply_wrap.hpp>))
Chris@16: #include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: template<
Chris@16:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
Chris@16:     >
Chris@16: struct BOOST_PP_CAT(apply_wrap,i_)
Chris@16:     : BOOST_PP_CAT(apply_wrap_impl,i_)<
Chris@16:           ::boost::mpl::aux::arity<F,i_>::value
Chris@16:         , F
Chris@16:         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
Chris@16:         >::type
Chris@16: {
Chris@16: };
Chris@16: 
Chris@16: #   else
Chris@16: // ISO98 C++, with minor concession to vc7
Chris@16: 
Chris@16: template<
Chris@16:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
Chris@16: #if i_ == 0
Chris@16:     , typename has_apply_ = typename aux::has_apply<F>::type
Chris@16: #endif
Chris@16:     >
Chris@16: struct BOOST_PP_CAT(apply_wrap,i_)
Chris@16: // metafunction forwarding confuses MSVC 7.0
Chris@16: #if !BOOST_WORKAROUND(BOOST_MSVC, == 1300)
Chris@16:     : F::template apply< AUX778076_APPLY_WRAP_PARAMS(i_, T) >
Chris@16: {
Chris@16: #else
Chris@16: {    
Chris@16:     typedef typename F::template apply<
Chris@16:          AUX778076_APPLY_WRAP_PARAMS(i_, T)
Chris@16:         >::type type;
Chris@16: #endif
Chris@16: };
Chris@16: 
Chris@16: #if i_ == 0 && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
Chris@16: template< typename F >
Chris@16: struct BOOST_PP_CAT(apply_wrap,i_)<F,true_>
Chris@16:     : F::apply
Chris@16: {
Chris@16: };
Chris@16: #endif
Chris@16: 
Chris@16: #   endif // workarounds
Chris@16: 
Chris@16: #if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
Chris@16: /// workaround for ETI bug
Chris@16: template<>
Chris@16: struct BOOST_PP_CAT(apply_wrap,i_)<AUX778076_APPLY_WRAP_SPEC_PARAMS(i_, int)>
Chris@16: {
Chris@16:     typedef int type;
Chris@16: };
Chris@16: #endif
Chris@16: 
Chris@16: #   undef i_
Chris@16: 
Chris@16: ///// iteration, depth == 2
Chris@16: 
Chris@16: #elif BOOST_PP_ITERATION_DEPTH() == 2
Chris@16: 
Chris@16: #   define j_ BOOST_PP_FRAME_ITERATION(2)
Chris@16: 
Chris@16: #if i_ == 0 && j_ == 0 \
Chris@16:     && defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) \
Chris@16:     && !defined(BOOST_MPL_CFG_NO_HAS_APPLY)
Chris@16: 
Chris@16: template< typename F, bool F_has_apply >
Chris@16: struct apply_wrap_impl0_bcb {
Chris@16:     typedef typename F::template apply< na > type;
Chris@16: };
Chris@16: 
Chris@16: template< typename F >
Chris@16: struct apply_wrap_impl0_bcb< F, true > {
Chris@16:     typedef typename F::apply type;
Chris@16: };
Chris@16: 
Chris@16: template<
Chris@16:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
Chris@16:     >
Chris@16: struct BOOST_PP_CAT(apply_wrap_impl,i_)<
Chris@16:           BOOST_MPL_PP_ADD(i_, j_)
Chris@16:         , F
Chris@16:         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
Chris@16:         >
Chris@16: {
Chris@16:     typedef apply_wrap_impl0_bcb< F, aux::has_apply< F >::value >::type type;
Chris@16: };
Chris@16: #else
Chris@16: 
Chris@16: template<
Chris@16:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
Chris@16:     >
Chris@16: struct BOOST_PP_CAT(apply_wrap_impl,i_)<
Chris@16:           BOOST_MPL_PP_ADD(i_, j_)
Chris@16:         , F
Chris@16:         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
Chris@16:         >
Chris@16: {
Chris@16:     typedef typename F::template apply<
Chris@16:           AUX778076_APPLY_WRAP_PARAMS(i_, T)
Chris@16: #if i_ == 0 && j_ == 0
Chris@16: /// since the defaults are "lost", we have to pass *something* even for nullary
Chris@16: /// metafunction classes
Chris@16:         na
Chris@16: #else
Chris@16:         BOOST_PP_COMMA_IF(BOOST_PP_AND(i_, j_)) BOOST_MPL_PP_ENUM(j_, na)
Chris@16: #endif
Chris@16:         > type;
Chris@16: };
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: #   undef j_
Chris@16: 
Chris@16: #endif // BOOST_PP_ITERATION_DEPTH()
Chris@16: #endif // BOOST_PP_IS_ITERATING