1 2 #ifndef BOOST_MPL_AUX_PREPROCESSOR_EXT_PARAMS_HPP_INCLUDED 3 #define BOOST_MPL_AUX_PREPROCESSOR_EXT_PARAMS_HPP_INCLUDED 4 5 // Copyright Aleksey Gurtovoy 2000-2004 6 // 7 // Distributed under the Boost Software License, Version 1.0. 8 // (See accompanying file LICENSE_1_0.txt or copy at 9 // http://www.boost.org/LICENSE_1_0.txt) 10 // 11 // See http://www.boost.org/libs/mpl for documentation. 12 13 // $Id$ 14 // $Date$ 15 // $Revision$ 16 17 #include <boost/mpl/aux_/config/preprocessor.hpp> 18 19 // BOOST_MPL_PP_EXT_PARAMS(2,2,T): <nothing> 20 // BOOST_MPL_PP_EXT_PARAMS(2,3,T): T2 21 // BOOST_MPL_PP_EXT_PARAMS(2,4,T): T2, T3 22 // BOOST_MPL_PP_EXT_PARAMS(2,n,T): T2, T3, .., Tn-1 23 24 #if !defined(BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES) 25 26 # include <boost/mpl/aux_/preprocessor/filter_params.hpp> 27 # include <boost/mpl/aux_/preprocessor/sub.hpp> 28 29 # define BOOST_MPL_PP_EXT_PARAMS(i,j,p) \ 30 BOOST_MPL_PP_EXT_PARAMS_DELAY_1(i,BOOST_MPL_PP_SUB(j,i),p) \ 31 /**/ 32 33 # define BOOST_MPL_PP_EXT_PARAMS_DELAY_1(i,n,p) \ 34 BOOST_MPL_PP_EXT_PARAMS_DELAY_2(i,n,p) \ 35 /**/ 36 37 # define BOOST_MPL_PP_EXT_PARAMS_DELAY_2(i,n,p) \ 38 BOOST_MPL_PP_EXT_PARAMS_##i(n,p) \ 39 /**/ 40 41 # define BOOST_MPL_PP_EXT_PARAMS_1(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##1,p##2,p##3,p##4,p##5,p##6,p##7,p##8,p##9) 42 # define BOOST_MPL_PP_EXT_PARAMS_2(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##2,p##3,p##4,p##5,p##6,p##7,p##8,p##9,p1) 43 # define BOOST_MPL_PP_EXT_PARAMS_3(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##3,p##4,p##5,p##6,p##7,p##8,p##9,p1,p2) 44 # define BOOST_MPL_PP_EXT_PARAMS_4(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##4,p##5,p##6,p##7,p##8,p##9,p1,p2,p3) 45 # define BOOST_MPL_PP_EXT_PARAMS_5(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##5,p##6,p##7,p##8,p##9,p1,p2,p3,p4) 46 # define BOOST_MPL_PP_EXT_PARAMS_6(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##6,p##7,p##8,p##9,p1,p2,p3,p4,p5) 47 # define BOOST_MPL_PP_EXT_PARAMS_7(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##7,p##8,p##9,p1,p2,p3,p4,p5,p6) 48 # define BOOST_MPL_PP_EXT_PARAMS_8(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##8,p##9,p1,p2,p3,p4,p5,p6,p7) 49 # define BOOST_MPL_PP_EXT_PARAMS_9(i,p) BOOST_MPL_PP_FILTER_PARAMS_##i(p##9,p1,p2,p3,p4,p5,p6,p7,p8) 50 51 #else 52 53 # include <boost/preprocessor/arithmetic/add.hpp> 54 # include <boost/preprocessor/arithmetic/sub.hpp> 55 # include <boost/preprocessor/comma_if.hpp> 56 # include <boost/preprocessor/repeat.hpp> 57 # include <boost/preprocessor/tuple/elem.hpp> 58 # include <boost/preprocessor/cat.hpp> 59 60 # define BOOST_MPL_PP_AUX_EXT_PARAM_FUNC(unused, i, op) \ 61 BOOST_PP_COMMA_IF(i) \ 62 BOOST_PP_CAT( \ 63 BOOST_PP_TUPLE_ELEM(2,1,op) \ 64 , BOOST_PP_ADD_D(1, i, BOOST_PP_TUPLE_ELEM(2,0,op)) \ 65 ) \ 66 /**/ 67 68 # define BOOST_MPL_PP_EXT_PARAMS(i, j, param) \ 69 BOOST_PP_REPEAT( \ 70 BOOST_PP_SUB_D(1,j,i) \ 71 , BOOST_MPL_PP_AUX_EXT_PARAM_FUNC \ 72 , (i,param) \ 73 ) \ 74 /**/ 75 76 #endif 77 78 #endif // BOOST_MPL_AUX_PREPROCESSOR_EXT_PARAMS_HPP_INCLUDED 79