source: NonGTP/Boost/boost/mpl/aux_/na_spec.hpp @ 857

Revision 857, 4.6 KB checked in by igarcia, 19 years ago (diff)
Line 
1
2#ifndef BOOST_MPL_AUX_NA_SPEC_HPP_INCLUDED
3#define BOOST_MPL_AUX_NA_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// $Source: /cvsroot/boost/boost/boost/mpl/aux_/na_spec.hpp,v $
14// $Date: 2004/11/28 01:38:15 $
15// $Revision: 1.3 $
16
17#if !defined(BOOST_MPL_PREPROCESSING_MODE)
18#   include <boost/mpl/lambda_fwd.hpp>
19#   include <boost/mpl/int.hpp>
20#   include <boost/mpl/bool.hpp>
21#   include <boost/mpl/aux_/na.hpp>
22#   include <boost/mpl/aux_/arity.hpp>
23#   include <boost/mpl/aux_/template_arity_fwd.hpp>
24#endif
25
26#include <boost/mpl/aux_/preprocessor/params.hpp>
27#include <boost/mpl/aux_/preprocessor/enum.hpp>
28#include <boost/mpl/aux_/preprocessor/def_params_tail.hpp>
29#include <boost/mpl/aux_/lambda_arity_param.hpp>
30#include <boost/mpl/aux_/config/dtp.hpp>
31#include <boost/mpl/aux_/config/eti.hpp>
32#include <boost/mpl/aux_/nttp_decl.hpp>
33#include <boost/mpl/aux_/config/ttp.hpp>
34#include <boost/mpl/aux_/config/lambda.hpp>
35#include <boost/mpl/aux_/config/overload_resolution.hpp>
36
37
38#define BOOST_MPL_AUX_NA_PARAMS(i) \
39    BOOST_MPL_PP_ENUM(i, na) \
40/**/
41
42#if defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
43#   define BOOST_MPL_AUX_NA_SPEC_ARITY(i, name) \
44namespace aux { \
45template< BOOST_MPL_AUX_NTTP_DECL(int, N) > \
46struct arity< \
47          name< BOOST_MPL_AUX_NA_PARAMS(i) > \
48        , N \
49        > \
50    : int_< BOOST_MPL_LIMIT_METAFUNCTION_ARITY > \
51{ \
52}; \
53} \
54/**/
55#else
56#   define BOOST_MPL_AUX_NA_SPEC_ARITY(i, name) /**/
57#endif
58
59#define BOOST_MPL_AUX_NA_SPEC_MAIN(i, name) \
60template<> \
61struct name< BOOST_MPL_AUX_NA_PARAMS(i) > \
62{ \
63    template< \
64          BOOST_MPL_PP_PARAMS(i, typename T) \
65        BOOST_MPL_PP_NESTED_DEF_PARAMS_TAIL(i, typename T, na) \
66        > \
67    struct apply \
68        : name< BOOST_MPL_PP_PARAMS(i, T) > \
69    { \
70    }; \
71}; \
72/**/
73
74#if defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT)
75#   define BOOST_MPL_AUX_NA_SPEC_LAMBDA(i, name) \
76template<> \
77struct lambda< \
78      name< BOOST_MPL_AUX_NA_PARAMS(i) > \
79    , void_ \
80    , true_ \
81    > \
82{ \
83    typedef false_ is_le; \
84    typedef name< BOOST_MPL_AUX_NA_PARAMS(i) > type; \
85}; \
86template<> \
87struct lambda< \
88      name< BOOST_MPL_AUX_NA_PARAMS(i) > \
89    , void_ \
90    , false_ \
91    > \
92{ \
93    typedef false_ is_le; \
94    typedef name< BOOST_MPL_AUX_NA_PARAMS(i) > type; \
95}; \
96/**/
97#else
98#   define BOOST_MPL_AUX_NA_SPEC_LAMBDA(i, name) \
99template< typename Tag > \
100struct lambda< \
101      name< BOOST_MPL_AUX_NA_PARAMS(i) > \
102    , Tag \
103    BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(int_<-1>) \
104    > \
105{ \
106    typedef false_ is_le; \
107    typedef name< BOOST_MPL_AUX_NA_PARAMS(i) > result_; \
108    typedef name< BOOST_MPL_AUX_NA_PARAMS(i) > type; \
109}; \
110/**/
111#endif
112
113#if defined(BOOST_MPL_CFG_EXTENDED_TEMPLATE_PARAMETERS_MATCHING) \
114    || defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT) \
115        && defined(BOOST_MPL_CFG_BROKEN_OVERLOAD_RESOLUTION)
116#   define BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(i, j, name) \
117namespace aux { \
118template< BOOST_MPL_PP_PARAMS(j, typename T) > \
119struct template_arity< \
120          name< BOOST_MPL_PP_PARAMS(j, T) > \
121        > \
122    : int_<j> \
123{ \
124}; \
125\
126template<> \
127struct template_arity< \
128          name< BOOST_MPL_PP_ENUM(i, na) > \
129        > \
130    : int_<-1> \
131{ \
132}; \
133} \
134/**/
135#else
136#   define BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(i, j, name) /**/
137#endif
138
139#if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
140#   define BOOST_MPL_AUX_NA_SPEC_ETI(i, name) \
141template<> \
142struct name< BOOST_MPL_PP_ENUM(i, int) > \
143{ \
144    typedef int type; \
145    enum { value = 0 }; \
146}; \
147/**/
148#else
149#   define BOOST_MPL_AUX_NA_SPEC_ETI(i, name) /**/
150#endif
151
152#define BOOST_MPL_AUX_NA_PARAM(param) param = na
153
154#define BOOST_MPL_AUX_NA_SPEC_NO_ETI(i, name) \
155BOOST_MPL_AUX_NA_SPEC_MAIN(i, name) \
156BOOST_MPL_AUX_NA_SPEC_LAMBDA(i, name) \
157BOOST_MPL_AUX_NA_SPEC_ARITY(i, name) \
158BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(i, i, name) \
159/**/
160
161#define BOOST_MPL_AUX_NA_SPEC(i, name) \
162BOOST_MPL_AUX_NA_SPEC_NO_ETI(i, name) \
163BOOST_MPL_AUX_NA_SPEC_ETI(i, name) \
164/**/
165
166#define BOOST_MPL_AUX_NA_SPEC2(i, j, name) \
167BOOST_MPL_AUX_NA_SPEC_MAIN(i, name) \
168BOOST_MPL_AUX_NA_SPEC_ETI(i, name) \
169BOOST_MPL_AUX_NA_SPEC_LAMBDA(i, name) \
170BOOST_MPL_AUX_NA_SPEC_ARITY(i, name) \
171BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(i, j, name) \
172/**/
173
174
175#endif // BOOST_MPL_AUX_NA_SPEC_HPP_INCLUDED
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