2 #ifndef BOOST_MPL_AUX_PREPROCESSOR_EXT_PARAMS_HPP_INCLUDED
3 #define BOOST_MPL_AUX_PREPROCESSOR_EXT_PARAMS_HPP_INCLUDED
5 // Copyright Aleksey Gurtovoy 2000-2004
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)
11 // See http://www.boost.org/libs/mpl for documentation.
13 // $Id: ext_params.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
14 // $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
17 #include <boost/mpl/aux_/config/preprocessor.hpp>
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
24 #if !defined(BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES)
26 # include <boost/mpl/aux_/preprocessor/filter_params.hpp>
27 # include <boost/mpl/aux_/preprocessor/sub.hpp>
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) \
33 # define BOOST_MPL_PP_EXT_PARAMS_DELAY_1(i,n,p) \
34 BOOST_MPL_PP_EXT_PARAMS_DELAY_2(i,n,p) \
37 # define BOOST_MPL_PP_EXT_PARAMS_DELAY_2(i,n,p) \
38 BOOST_MPL_PP_EXT_PARAMS_##i(n,p) \
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)
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>
60 # define BOOST_MPL_PP_AUX_EXT_PARAM_FUNC(unused, i, op) \
61 BOOST_PP_COMMA_IF(i) \
63 BOOST_PP_TUPLE_ELEM(2,1,op) \
64 , BOOST_PP_ADD_D(1, i, BOOST_PP_TUPLE_ELEM(2,0,op)) \
68 # define BOOST_MPL_PP_EXT_PARAMS(i, j, param) \
70 BOOST_PP_SUB_D(1,j,i) \
71 , BOOST_MPL_PP_AUX_EXT_PARAM_FUNC \
78 #endif // BOOST_MPL_AUX_PREPROCESSOR_EXT_PARAMS_HPP_INCLUDED