williamr@4: 
williamr@4: #if !defined(BOOST_PP_IS_ITERATING)
williamr@4: 
williamr@4: ///// header body
williamr@4: 
williamr@4: #ifndef BOOST_MPL_APPLY_HPP_INCLUDED
williamr@4: #define BOOST_MPL_APPLY_HPP_INCLUDED
williamr@4: 
williamr@4: // Copyright Aleksey Gurtovoy 2000-2004
williamr@4: //
williamr@4: // Distributed under the Boost Software License, Version 1.0. 
williamr@4: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@4: // http://www.boost.org/LICENSE_1_0.txt)
williamr@4: //
williamr@4: // See http://www.boost.org/libs/mpl for documentation.
williamr@4: 
williamr@4: // $Source: /cvsroot/boost/boost/boost/mpl/apply.hpp,v $
williamr@4: // $Date: 2004/09/02 15:40:41 $
williamr@4: // $Revision: 1.17 $
williamr@4: 
williamr@4: #if !defined(BOOST_MPL_PREPROCESSING_MODE)
williamr@4: #   include <boost/mpl/apply_fwd.hpp>
williamr@4: #   include <boost/mpl/apply_wrap.hpp>
williamr@4: #   include <boost/mpl/placeholders.hpp>
williamr@4: #   include <boost/mpl/lambda.hpp>
williamr@4: #   include <boost/mpl/aux_/na.hpp>
williamr@4: #   include <boost/mpl/aux_/lambda_support.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.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/default_params.hpp>
williamr@4: #   include <boost/mpl/aux_/preprocessor/partial_spec_params.hpp>
williamr@4: #   include <boost/mpl/aux_/preprocessor/enum.hpp>
williamr@4: #   include <boost/mpl/aux_/config/lambda.hpp>
williamr@4: #   include <boost/mpl/aux_/config/dtp.hpp>
williamr@4: #   include <boost/mpl/aux_/nttp_decl.hpp>
williamr@4: #   include <boost/mpl/aux_/config/eti.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/inc.hpp>
williamr@4: #   include <boost/preprocessor/iterate.hpp>
williamr@4: #   include <boost/preprocessor/cat.hpp>
williamr@4: 
williamr@4: namespace boost { namespace mpl {
williamr@4: 
williamr@4: // local macros, #undef-ined at the end of the header
williamr@4: #   define AUX778076_APPLY_PARAMS(param) \
williamr@4:     BOOST_MPL_PP_PARAMS( \
williamr@4:           BOOST_MPL_LIMIT_METAFUNCTION_ARITY \
williamr@4:         , param \
williamr@4:         ) \
williamr@4:     /**/
williamr@4: 
williamr@4: #   define AUX778076_APPLY_DEF_PARAMS(param, value) \
williamr@4:     BOOST_MPL_PP_DEFAULT_PARAMS( \
williamr@4:           BOOST_MPL_LIMIT_METAFUNCTION_ARITY \
williamr@4:         , param \
williamr@4:         , value \
williamr@4:         ) \
williamr@4:     /**/
williamr@4: 
williamr@4: #   define AUX778076_APPLY_N_PARAMS(n, param) \
williamr@4:     BOOST_MPL_PP_PARAMS(n, param) \
williamr@4:     /**/
williamr@4: 
williamr@4: #   define AUX778076_APPLY_N_COMMA_PARAMS(n, param) \
williamr@4:     BOOST_PP_COMMA_IF(n) \
williamr@4:     BOOST_MPL_PP_PARAMS(n, param) \
williamr@4:     /**/
williamr@4: 
williamr@4: #   define AUX778076_APPLY_N_PARTIAL_SPEC_PARAMS(n, param, def) \
williamr@4:     BOOST_PP_COMMA_IF(n) \
williamr@4:     BOOST_MPL_PP_PARTIAL_SPEC_PARAMS(n, param, def) \
williamr@4:     /**/
williamr@4:     
williamr@4: #   define AUX778076_APPLY_N_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.hpp>))
williamr@4: #include BOOST_PP_ITERATE()
williamr@4: 
williamr@4: #   if !defined(BOOST_MPL_CFG_NO_APPLY_TEMPLATE)
williamr@4: // real C++ version is already taken care of
williamr@4: #   if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
williamr@4: 
williamr@4: namespace aux {
williamr@4: // apply_count_args
williamr@4: #define AUX778076_COUNT_ARGS_PREFIX apply
williamr@4: #define AUX778076_COUNT_ARGS_DEFAULT na
williamr@4: #define AUX778076_COUNT_ARGS_ARITY BOOST_MPL_LIMIT_METAFUNCTION_ARITY
williamr@4: #include <boost/mpl/aux_/count_args.hpp>
williamr@4: }
williamr@4: 
williamr@4: 
williamr@4: template<
williamr@4:       typename F, AUX778076_APPLY_DEF_PARAMS(typename T, na)
williamr@4:     >
williamr@4: struct apply
williamr@4:     : aux::apply_chooser< 
williamr@4:           aux::apply_count_args< AUX778076_APPLY_PARAMS(T) >::value
williamr@4:         >::template result_< F, AUX778076_APPLY_PARAMS(T) >::type
williamr@4: {
williamr@4: };
williamr@4: 
williamr@4: #   endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
williamr@4: #   endif // BOOST_MPL_CFG_NO_APPLY_TEMPLATE
williamr@4: 
williamr@4: #   undef AUX778076_APPLY_N_SPEC_PARAMS
williamr@4: #   undef AUX778076_APPLY_N_PARTIAL_SPEC_PARAMS
williamr@4: #   undef AUX778076_APPLY_N_COMMA_PARAMS
williamr@4: #   undef AUX778076_APPLY_N_PARAMS
williamr@4: #   undef AUX778076_APPLY_DEF_PARAMS
williamr@4: #   undef AUX778076_APPLY_PARAMS
williamr@4: 
williamr@4: }}
williamr@4: 
williamr@4: #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
williamr@4: #endif // BOOST_MPL_APPLY_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: template<
williamr@4:       typename F AUX778076_APPLY_N_COMMA_PARAMS(i_, typename T)
williamr@4:     >
williamr@4: struct BOOST_PP_CAT(apply,i_)
williamr@4: #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
williamr@4:     : BOOST_PP_CAT(apply_wrap,i_)< 
williamr@4:           typename lambda<F>::type
williamr@4:         AUX778076_APPLY_N_COMMA_PARAMS(i_, T)
williamr@4:         >
williamr@4: {
williamr@4: #else
williamr@4: {
williamr@4:     typedef typename BOOST_PP_CAT(apply_wrap,i_)< 
williamr@4:           typename lambda<F>::type
williamr@4:         AUX778076_APPLY_N_COMMA_PARAMS(i_, T)
williamr@4:         >::type type;
williamr@4: #endif
williamr@4:     BOOST_MPL_AUX_LAMBDA_SUPPORT(
williamr@4:           BOOST_PP_INC(i_)
williamr@4:         , BOOST_PP_CAT(apply,i_)
williamr@4:         , (F AUX778076_APPLY_N_COMMA_PARAMS(i_,T))
williamr@4:         )
williamr@4: };
williamr@4: 
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,i_)<AUX778076_APPLY_N_SPEC_PARAMS(i_, int)>
williamr@4: {
williamr@4:     typedef int type;
williamr@4: };
williamr@4: #endif
williamr@4: 
williamr@4: #   if !defined(BOOST_MPL_CFG_NO_APPLY_TEMPLATE)
williamr@4: #   if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
williamr@4: 
williamr@4: #if i_ == BOOST_MPL_LIMIT_METAFUNCTION_ARITY
williamr@4: /// primary template (not a specialization!)
williamr@4: template<
williamr@4:       typename F AUX778076_APPLY_N_COMMA_PARAMS(i_, typename T)
williamr@4:     >
williamr@4: struct apply
williamr@4:     : BOOST_PP_CAT(apply,i_)< F AUX778076_APPLY_N_COMMA_PARAMS(i_, T) >
williamr@4: {
williamr@4: };
williamr@4: #else
williamr@4: template<
williamr@4:       typename F AUX778076_APPLY_N_COMMA_PARAMS(i_, typename T)
williamr@4:     >
williamr@4: struct apply< F AUX778076_APPLY_N_PARTIAL_SPEC_PARAMS(i_, T, na) >
williamr@4:     : BOOST_PP_CAT(apply,i_)< F AUX778076_APPLY_N_COMMA_PARAMS(i_, T) >
williamr@4: {
williamr@4: };
williamr@4: #endif
williamr@4: 
williamr@4: #   else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
williamr@4: 
williamr@4: #if !defined(BOOST_MPL_CFG_NO_APPLY_TEMPLATE)
williamr@4: namespace aux {
williamr@4: 
williamr@4: template<>
williamr@4: struct apply_chooser<i_>
williamr@4: {
williamr@4:     template<
williamr@4:           typename F, AUX778076_APPLY_PARAMS(typename T)
williamr@4:         >
williamr@4:     struct result_
williamr@4:     {
williamr@4:         typedef BOOST_PP_CAT(apply,i_)<
williamr@4:               F AUX778076_APPLY_N_COMMA_PARAMS(i_, T)
williamr@4:             > type;
williamr@4:     };
williamr@4: };
williamr@4: 
williamr@4: } // namespace aux
williamr@4: #endif
williamr@4: 
williamr@4: #   endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
williamr@4: #   endif // BOOST_MPL_CFG_NO_APPLY_TEMPLATE
williamr@4: 
williamr@4: #   undef i_
williamr@4: 
williamr@4: #endif // BOOST_PP_IS_ITERATING