#if !defined(BOOST_PP_IS_ITERATING) ///// header body #ifndef BOOST_MPL_ARG_HPP_INCLUDED #define BOOST_MPL_ARG_HPP_INCLUDED // Copyright Peter Dimov 2001-2002 // Copyright Aleksey Gurtovoy 2001-2004 // // 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: arg.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ // $Revision: 49267 $ #if !defined(BOOST_MPL_PREPROCESSING_MODE) # include <boost/mpl/arg_fwd.hpp> # include <boost/mpl/aux_/na.hpp> # include <boost/mpl/aux_/na_assert.hpp> # include <boost/mpl/aux_/arity_spec.hpp> # include <boost/mpl/aux_/arg_typedef.hpp> #endif #include <boost/mpl/aux_/config/static_constant.hpp> #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 arg.hpp # include <boost/mpl/aux_/include_preprocessed.hpp> #else # include <boost/mpl/limits/arity.hpp> # include <boost/mpl/aux_/preprocessor/default_params.hpp> # include <boost/mpl/aux_/preprocessor/params.hpp> # include <boost/mpl/aux_/config/lambda.hpp> # include <boost/mpl/aux_/config/dtp.hpp> # include <boost/mpl/aux_/nttp_decl.hpp> # include <boost/preprocessor/iterate.hpp> # include <boost/preprocessor/inc.hpp> # include <boost/preprocessor/cat.hpp> BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN // local macro, #undef-ined at the end of the header #if !defined(BOOST_MPL_CFG_NO_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) # define AUX778076_ARG_N_DEFAULT_PARAMS(param,value) \ BOOST_MPL_PP_DEFAULT_PARAMS( \ BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ , param \ , value \ ) \ /**/ #else # define AUX778076_ARG_N_DEFAULT_PARAMS(param,value) \ BOOST_MPL_PP_PARAMS( \ BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ , param \ ) \ /**/ #endif #define BOOST_PP_ITERATION_PARAMS_1 \ (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/arg.hpp>)) #include BOOST_PP_ITERATE() # undef AUX778076_ARG_N_DEFAULT_PARAMS BOOST_MPL_AUX_NONTYPE_ARITY_SPEC(1,int,arg) BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS #endif // BOOST_MPL_ARG_HPP_INCLUDED ///// iteration #else #define i_ BOOST_PP_FRAME_ITERATION(1) #if i_ > 0 template<> struct arg<i_> { BOOST_STATIC_CONSTANT(int, value = i_); typedef arg<BOOST_PP_INC(i_)> next; BOOST_MPL_AUX_ARG_TYPEDEF(na, tag) BOOST_MPL_AUX_ARG_TYPEDEF(na, type) template< AUX778076_ARG_N_DEFAULT_PARAMS(typename U, na) > struct apply { typedef BOOST_PP_CAT(U,i_) type; BOOST_MPL_AUX_ASSERT_NOT_NA(type); }; }; #else template<> struct arg<-1> { BOOST_STATIC_CONSTANT(int, value = -1); BOOST_MPL_AUX_ARG_TYPEDEF(na, tag) BOOST_MPL_AUX_ARG_TYPEDEF(na, type) template< AUX778076_ARG_N_DEFAULT_PARAMS(typename U, na) > struct apply { typedef U1 type; BOOST_MPL_AUX_ASSERT_NOT_NA(type); }; }; #endif // i_ > 0 #undef i_ #endif // BOOST_PP_IS_ITERATING