williamr@4: 
williamr@4: #if !defined(BOOST_PP_IS_ITERATING)
williamr@4: 
williamr@4: ///// header body
williamr@4: 
williamr@4: #ifndef BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
williamr@4: #define BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Aleksey Gurtovoy 2000-2004
williamr@2: //
williamr@2: // Distributed under the Boost Software License, Version 1.0. 
williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@4: // See http://www.boost.org/libs/mpl for documentation.
williamr@2: 
williamr@4: // $Source: /cvsroot/boost/boost/boost/mpl/apply_wrap.hpp,v $
williamr@4: // $Date: 2004/09/03 15:56:55 $
williamr@4: // $Revision: 1.3 $
williamr@4: 
williamr@4: #if !defined(BOOST_MPL_PREPROCESSING_MODE)
williamr@4: #   include <boost/mpl/aux_/arity.hpp>
williamr@4: #   include <boost/mpl/aux_/has_apply.hpp>
williamr@4: #   include <boost/mpl/aux_/na.hpp>
williamr@4: #   include <boost/mpl/aux_/msvc_never_true.hpp>
williamr@4: #endif
williamr@4: 
williamr@4: #include <boost/mpl/aux_/config/use_preprocessed.hpp>
williamr@4: 
williamr@4: #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
williamr@4:     && !defined(BOOST_MPL_PREPROCESSING_MODE)
williamr@4: 
williamr@4: #   define BOOST_MPL_PREPROCESSED_HEADER apply_wrap.hpp
williamr@4: #   include <boost/mpl/aux_/include_preprocessed.hpp>
williamr@4: 
williamr@4: #else
williamr@4: 
williamr@4: #   include <boost/mpl/limits/arity.hpp>
williamr@4: #   include <boost/mpl/aux_/preprocessor/params.hpp>
williamr@4: #   include <boost/mpl/aux_/preprocessor/enum.hpp>
williamr@4: #   include <boost/mpl/aux_/preprocessor/add.hpp>
williamr@4: #   include <boost/mpl/aux_/config/dtp.hpp>
williamr@4: #   include <boost/mpl/aux_/config/eti.hpp>
williamr@4: #   include <boost/mpl/aux_/config/ctps.hpp>
williamr@4: #   include <boost/mpl/aux_/config/msvc.hpp>
williamr@4: #   include <boost/mpl/aux_/config/workaround.hpp>
williamr@4: 
williamr@4: #   include <boost/preprocessor/comma_if.hpp>
williamr@4: #   include <boost/preprocessor/logical/and.hpp>
williamr@4: #   include <boost/preprocessor/inc.hpp>
williamr@4: #   include <boost/preprocessor/iterate.hpp>
williamr@4: 
williamr@2: 
williamr@2: namespace boost { namespace mpl {
williamr@2: 
williamr@4: // local macros, #undef-ined at the end of the header
williamr@4: #   define AUX778076_APPLY_WRAP_PARAMS(n, param) \
williamr@4:     BOOST_MPL_PP_PARAMS(n, param) \
williamr@4:     /**/
williamr@4: 
williamr@4: #   define AUX778076_APPLY_WRAP_SPEC_PARAMS(n, param) \
williamr@4:     BOOST_MPL_PP_ENUM(BOOST_PP_INC(n), param) \
williamr@4:     /**/
williamr@4: 
williamr@4: 
williamr@4: #define BOOST_PP_ITERATION_PARAMS_1 \
williamr@4:     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply_wrap.hpp>))
williamr@4: #include BOOST_PP_ITERATE()
williamr@4: 
williamr@4: 
williamr@4: #   undef AUX778076_APPLY_WRAP_SPEC_PARAMS
williamr@4: #   undef AUX778076_APPLY_WRAP_PARAMS
williamr@4: 
williamr@4: }}
williamr@4: 
williamr@4: #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
williamr@4: #endif // BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
williamr@4: 
williamr@4: ///// iteration, depth == 1
williamr@4: 
williamr@4: #elif BOOST_PP_ITERATION_DEPTH() == 1
williamr@4: 
williamr@4: #   define i_ BOOST_PP_FRAME_ITERATION(1)
williamr@4: 
williamr@4: #   if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
williamr@4: // MSVC version
williamr@4: 
williamr@4: #define AUX778076_MSVC_DTW_NAME BOOST_PP_CAT(msvc_apply,i_)
williamr@4: #define AUX778076_MSVC_DTW_ORIGINAL_NAME apply
williamr@4: #define AUX778076_MSVC_DTW_ARITY i_
williamr@4: #include <boost/mpl/aux_/msvc_dtw.hpp>
williamr@4: 
williamr@2: template<
williamr@4:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
williamr@4:     >
williamr@4: struct BOOST_PP_CAT(apply_wrap,i_)
williamr@4: {
williamr@4:     // Metafunction forwarding confuses vc6
williamr@4:     typedef typename BOOST_PP_CAT(msvc_apply,i_)<F>::template result_<
williamr@4:           AUX778076_APPLY_WRAP_PARAMS(i_, T)
williamr@4:         >::type type;
williamr@4: };
williamr@2: 
williamr@4: #   elif defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
williamr@4: // MWCW/Borland version
williamr@2: 
williamr@4: template<
williamr@4:       int N, typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
williamr@2:     >
williamr@4: struct BOOST_PP_CAT(apply_wrap_impl,i_);
williamr@2: 
williamr@4: #define BOOST_PP_ITERATION_PARAMS_2 \
williamr@4:     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY - i_, <boost/mpl/apply_wrap.hpp>))
williamr@4: #include BOOST_PP_ITERATE()
williamr@4: 
williamr@4: template<
williamr@4:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
williamr@4:     >
williamr@4: struct BOOST_PP_CAT(apply_wrap,i_)
williamr@4:     : BOOST_PP_CAT(apply_wrap_impl,i_)<
williamr@4:           ::boost::mpl::aux::arity<F,i_>::value
williamr@4:         , F
williamr@4:         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
williamr@4:         >::type
williamr@2: {
williamr@2: };
williamr@2: 
williamr@4: #   else
williamr@4: // ISO98 C++, with minor concession to vc7
williamr@4: 
williamr@4: template<
williamr@4:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
williamr@4: #if i_ == 0
williamr@4:     , typename has_apply_ = typename aux::has_apply<F>::type
williamr@4: #endif
williamr@4:     >
williamr@4: struct BOOST_PP_CAT(apply_wrap,i_)
williamr@4: // metafunction forwarding confuses MSVC 7.0
williamr@4: #if !BOOST_WORKAROUND(BOOST_MSVC, == 1300)
williamr@4:     : F::template apply< AUX778076_APPLY_WRAP_PARAMS(i_, T) >
williamr@4: {
williamr@4: #else
williamr@4: {    
williamr@4:     typedef typename F::template apply<
williamr@4:          AUX778076_APPLY_WRAP_PARAMS(i_, T)
williamr@4:         >::type type;
williamr@4: #endif
williamr@4: };
williamr@4: 
williamr@4: #if i_ == 0 && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
williamr@2: template< typename F >
williamr@4: struct BOOST_PP_CAT(apply_wrap,i_)<F,true_>
williamr@2:     : F::apply
williamr@2: {
williamr@2: };
williamr@4: #endif
williamr@4: 
williamr@4: #   endif // workarounds
williamr@4: 
williamr@4: #if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
williamr@4: /// workaround for ETI bug
williamr@4: template<>
williamr@4: struct BOOST_PP_CAT(apply_wrap,i_)<AUX778076_APPLY_WRAP_SPEC_PARAMS(i_, int)>
williamr@4: {
williamr@4:     typedef int type;
williamr@4: };
williamr@4: #endif
williamr@4: 
williamr@4: #   undef i_
williamr@4: 
williamr@4: ///// iteration, depth == 2
williamr@4: 
williamr@4: #elif BOOST_PP_ITERATION_DEPTH() == 2
williamr@4: 
williamr@4: #   define j_ BOOST_PP_FRAME_ITERATION(2)
williamr@2: 
williamr@2: template<
williamr@4:       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
williamr@2:     >
williamr@4: struct BOOST_PP_CAT(apply_wrap_impl,i_)<
williamr@4:           BOOST_MPL_PP_ADD(i_, j_)
williamr@4:         , F
williamr@4:         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
williamr@4:         >
williamr@2: {
williamr@4:     typedef typename F::template apply<
williamr@4:           AUX778076_APPLY_WRAP_PARAMS(i_, T)
williamr@4: #if i_ == 0 && j_ == 0
williamr@4: /// since the defaults are "lost", we have to pass *something* even for nullary
williamr@4: /// metafunction classes
williamr@4:         na
williamr@4: #else
williamr@4:         BOOST_PP_COMMA_IF(BOOST_PP_AND(i_, j_)) BOOST_MPL_PP_ENUM(j_, na)
williamr@4: #endif
williamr@4:         > type;
williamr@2: };
williamr@2: 
williamr@4: #   undef j_
williamr@2: 
williamr@4: #endif // BOOST_PP_IS_ITERATING