1
2#ifndef BOOST_MPL_AUX_PREPROCESSOR_DEFAULT_PARAMS_HPP_INCLUDED
3#define BOOST_MPL_AUX_PREPROCESSOR_DEFAULT_PARAMS_HPP_INCLUDED
4
5// Copyright Aleksey Gurtovoy 2002-2004
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_DEFAULT_PARAMS(0,T,int): <nothing>
20// BOOST_MPL_PP_DEFAULT_PARAMS(1,T,int): T1 = int
21// BOOST_MPL_PP_DEFAULT_PARAMS(2,T,int): T1 = int, T2 = int
22// BOOST_MPL_PP_DEFAULT_PARAMS(n,T,int): T1 = int, T2 = int, .., Tn = int
23
24#if !defined(BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES)
25
26# include <boost/preprocessor/cat.hpp>
27
28# define BOOST_MPL_PP_DEFAULT_PARAMS(n,p,v) \
29 BOOST_PP_CAT(BOOST_MPL_PP_DEFAULT_PARAMS_,n)(p,v) \
30 /**/
31
32# define BOOST_MPL_PP_DEFAULT_PARAMS_0(p,v)
33# define BOOST_MPL_PP_DEFAULT_PARAMS_1(p,v) p##1=v
34# define BOOST_MPL_PP_DEFAULT_PARAMS_2(p,v) p##1=v,p##2=v
35# define BOOST_MPL_PP_DEFAULT_PARAMS_3(p,v) p##1=v,p##2=v,p##3=v
36# define BOOST_MPL_PP_DEFAULT_PARAMS_4(p,v) p##1=v,p##2=v,p##3=v,p##4=v
37# define BOOST_MPL_PP_DEFAULT_PARAMS_5(p,v) p##1=v,p##2=v,p##3=v,p##4=v,p##5=v
38# define BOOST_MPL_PP_DEFAULT_PARAMS_6(p,v) p##1=v,p##2=v,p##3=v,p##4=v,p##5=v,p##6=v
39# define BOOST_MPL_PP_DEFAULT_PARAMS_7(p,v) p##1=v,p##2=v,p##3=v,p##4=v,p##5=v,p##6=v,p##7=v
40# define BOOST_MPL_PP_DEFAULT_PARAMS_8(p,v) p##1=v,p##2=v,p##3=v,p##4=v,p##5=v,p##6=v,p##7=v,p##8=v
41# define BOOST_MPL_PP_DEFAULT_PARAMS_9(p,v) p##1=v,p##2=v,p##3=v,p##4=v,p##5=v,p##6=v,p##7=v,p##8=v,p##9=v
42
43#else
44
45# include <boost/preprocessor/tuple/elem.hpp>
46# include <boost/preprocessor/comma_if.hpp>
47# include <boost/preprocessor/repeat.hpp>
48# include <boost/preprocessor/inc.hpp>
49# include <boost/preprocessor/cat.hpp>
50
51# define BOOST_MPL_PP_AUX_DEFAULT_PARAM_FUNC(unused, i, pv) \
52 BOOST_PP_COMMA_IF(i) \
53 BOOST_PP_CAT( BOOST_PP_TUPLE_ELEM(2,0,pv), BOOST_PP_INC(i) ) \
54 = BOOST_PP_TUPLE_ELEM(2,1,pv) \
55 /**/
56
57# define BOOST_MPL_PP_DEFAULT_PARAMS(n, param, value) \
58 BOOST_PP_REPEAT( \
59 n \
60 , BOOST_MPL_PP_AUX_DEFAULT_PARAM_FUNC \
61 , (param,value) \
62 ) \
63 /**/
64
65#endif
66
67#endif // BOOST_MPL_AUX_PREPROCESSOR_DEFAULT_PARAMS_HPP_INCLUDED
68