1
2#ifndef BOOST_MPL_AUX_ARITY_SPEC_HPP_INCLUDED
3#define BOOST_MPL_AUX_ARITY_SPEC_HPP_INCLUDED
4
5// Copyright Aleksey Gurtovoy 2001-2004
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/int.hpp>
18#include <boost/mpl/limits/arity.hpp>
19#include <boost/mpl/aux_/config/dtp.hpp>
20#include <boost/mpl/aux_/preprocessor/params.hpp>
21#include <boost/mpl/aux_/arity.hpp>
22#include <boost/mpl/aux_/template_arity_fwd.hpp>
23#include <boost/mpl/aux_/config/ttp.hpp>
24#include <boost/mpl/aux_/config/lambda.hpp>
25#include <boost/mpl/aux_/config/static_constant.hpp>
26
27#if defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
28# define BOOST_MPL_AUX_NONTYPE_ARITY_SPEC(i,type,name) \
29namespace aux { \
30template< BOOST_MPL_AUX_NTTP_DECL(int, N), BOOST_MPL_PP_PARAMS(i,type T) > \
31struct arity< \
32 name< BOOST_MPL_PP_PARAMS(i,T) > \
33 , N \
34 > \
35{ \
36 BOOST_STATIC_CONSTANT(int \
37 , value = BOOST_MPL_LIMIT_METAFUNCTION_ARITY \
38 ); \
39}; \
40} \
41/**/
42#else
43# define BOOST_MPL_AUX_NONTYPE_ARITY_SPEC(i,type,name) /**/
44#endif
45
46# define BOOST_MPL_AUX_ARITY_SPEC(i,name) \
47 BOOST_MPL_AUX_NONTYPE_ARITY_SPEC(i,typename,name) \
48/**/
49
50
51#if defined(BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING) \
52 && !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT)
53# define BOOST_MPL_AUX_TEMPLATE_ARITY_SPEC(i, name) \
54namespace aux { \
55template< BOOST_MPL_PP_PARAMS(i,typename T) > \
56struct template_arity< name<BOOST_MPL_PP_PARAMS(i,T)> > \
57 : int_<i> \
58{ \
59}; \
60} \
61/**/
62#else
63# define BOOST_MPL_AUX_TEMPLATE_ARITY_SPEC(i, name) /**/
64#endif
65
66
67#endif // BOOST_MPL_AUX_ARITY_SPEC_HPP_INCLUDED
68

source code of include/boost/mpl/aux_/arity_spec.hpp