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function_traits.hpp in vendors/XIOS/current/extern/boost/include/boost/type_traits – NEMO

source: vendors/XIOS/current/extern/boost/include/boost/type_traits/function_traits.hpp @ 3408

Last change on this file since 3408 was 3408, checked in by rblod, 12 years ago

importing initial XIOS vendor drop
  • Property svn:keywords set to Id
File size: 6.9 KB
Line 
1
2//  Copyright 2000 John Maddock (john@johnmaddock.co.uk)
3//  Use, modification and distribution are subject to the Boost Software License,
4//  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5//  http://www.boost.org/LICENSE_1_0.txt).
6//
7//  See http://www.boost.org/libs/type_traits for most recent version including documentation.
8
9#ifndef BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
10#define BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
11
12#include <boost/config.hpp>
13#include <boost/type_traits/is_function.hpp>
14#include <boost/type_traits/add_pointer.hpp>
15
16namespace boost {
17
18#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
19namespace detail {
20
21template<typename Function> struct function_traits_helper;
22
23template<typename R>
24struct function_traits_helper<R (*)(void)>
25{
26  BOOST_STATIC_CONSTANT(unsigned, arity = 0);
27  typedef R result_type;
28};
29
30template<typename R, typename T1>
31struct function_traits_helper<R (*)(T1)>
32{
33  BOOST_STATIC_CONSTANT(unsigned, arity = 1);
34  typedef R result_type;
35  typedef T1 arg1_type;
36  typedef T1 argument_type;
37};
38
39template<typename R, typename T1, typename T2>
40struct function_traits_helper<R (*)(T1, T2)>
41{
42  BOOST_STATIC_CONSTANT(unsigned, arity = 2);
43  typedef R result_type;
44  typedef T1 arg1_type;
45  typedef T2 arg2_type;
46  typedef T1 first_argument_type;
47  typedef T2 second_argument_type;
48};
49
50template<typename R, typename T1, typename T2, typename T3>
51struct function_traits_helper<R (*)(T1, T2, T3)>
52{
53  BOOST_STATIC_CONSTANT(unsigned, arity = 3);
54  typedef R result_type;
55  typedef T1 arg1_type;
56  typedef T2 arg2_type;
57  typedef T3 arg3_type;
58};
59
60template<typename R, typename T1, typename T2, typename T3, typename T4>
61struct function_traits_helper<R (*)(T1, T2, T3, T4)>
62{
63  BOOST_STATIC_CONSTANT(unsigned, arity = 4);
64  typedef R result_type;
65  typedef T1 arg1_type;
66  typedef T2 arg2_type;
67  typedef T3 arg3_type;
68  typedef T4 arg4_type;
69};
70
71template<typename R, typename T1, typename T2, typename T3, typename T4,
72         typename T5>
73struct function_traits_helper<R (*)(T1, T2, T3, T4, T5)>
74{
75  BOOST_STATIC_CONSTANT(unsigned, arity = 5);
76  typedef R result_type;
77  typedef T1 arg1_type;
78  typedef T2 arg2_type;
79  typedef T3 arg3_type;
80  typedef T4 arg4_type;
81  typedef T5 arg5_type;
82};
83
84template<typename R, typename T1, typename T2, typename T3, typename T4,
85         typename T5, typename T6>
86struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6)>
87{
88  BOOST_STATIC_CONSTANT(unsigned, arity = 6);
89  typedef R result_type;
90  typedef T1 arg1_type;
91  typedef T2 arg2_type;
92  typedef T3 arg3_type;
93  typedef T4 arg4_type;
94  typedef T5 arg5_type;
95  typedef T6 arg6_type;
96};
97
98template<typename R, typename T1, typename T2, typename T3, typename T4,
99         typename T5, typename T6, typename T7>
100struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7)>
101{
102  BOOST_STATIC_CONSTANT(unsigned, arity = 7);
103  typedef R result_type;
104  typedef T1 arg1_type;
105  typedef T2 arg2_type;
106  typedef T3 arg3_type;
107  typedef T4 arg4_type;
108  typedef T5 arg5_type;
109  typedef T6 arg6_type;
110  typedef T7 arg7_type;
111};
112
113template<typename R, typename T1, typename T2, typename T3, typename T4,
114         typename T5, typename T6, typename T7, typename T8>
115struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8)>
116{
117  BOOST_STATIC_CONSTANT(unsigned, arity = 8);
118  typedef R result_type;
119  typedef T1 arg1_type;
120  typedef T2 arg2_type;
121  typedef T3 arg3_type;
122  typedef T4 arg4_type;
123  typedef T5 arg5_type;
124  typedef T6 arg6_type;
125  typedef T7 arg7_type;
126  typedef T8 arg8_type;
127};
128
129template<typename R, typename T1, typename T2, typename T3, typename T4,
130         typename T5, typename T6, typename T7, typename T8, typename T9>
131struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9)>
132{
133  BOOST_STATIC_CONSTANT(unsigned, arity = 9);
134  typedef R result_type;
135  typedef T1 arg1_type;
136  typedef T2 arg2_type;
137  typedef T3 arg3_type;
138  typedef T4 arg4_type;
139  typedef T5 arg5_type;
140  typedef T6 arg6_type;
141  typedef T7 arg7_type;
142  typedef T8 arg8_type;
143  typedef T9 arg9_type;
144};
145
146template<typename R, typename T1, typename T2, typename T3, typename T4,
147         typename T5, typename T6, typename T7, typename T8, typename T9,
148         typename T10>
149struct function_traits_helper<R (*)(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)>
150{
151  BOOST_STATIC_CONSTANT(unsigned, arity = 10);
152  typedef R result_type;
153  typedef T1 arg1_type;
154  typedef T2 arg2_type;
155  typedef T3 arg3_type;
156  typedef T4 arg4_type;
157  typedef T5 arg5_type;
158  typedef T6 arg6_type;
159  typedef T7 arg7_type;
160  typedef T8 arg8_type;
161  typedef T9 arg9_type;
162  typedef T10 arg10_type;
163};
164
165} // end namespace detail
166
167template<typename Function>
168struct function_traits : 
169   public boost::detail::function_traits_helper<typename boost::add_pointer<Function>::type>
170{
171};
172
173#else
174
175namespace detail {
176
177template<unsigned N> 
178struct type_of_size
179{
180  char elements[N];
181};
182
183template<typename R>
184type_of_size<1> function_arity_helper(R (*f)());
185
186template<typename R, typename T1>
187type_of_size<2> function_arity_helper(R (*f)(T1));
188
189template<typename R, typename T1, typename T2>
190type_of_size<3> function_arity_helper(R (*f)(T1, T2));
191
192template<typename R, typename T1, typename T2, typename T3>
193type_of_size<4> function_arity_helper(R (*f)(T1, T2, T3));
194
195template<typename R, typename T1, typename T2, typename T3, typename T4>
196type_of_size<5> function_arity_helper(R (*f)(T1, T2, T3, T4));
197
198template<typename R, typename T1, typename T2, typename T3, typename T4,
199         typename T5>
200type_of_size<6> function_arity_helper(R (*f)(T1, T2, T3, T4, T5));
201
202template<typename R, typename T1, typename T2, typename T3, typename T4,
203         typename T5, typename T6>
204type_of_size<7> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6));
205
206template<typename R, typename T1, typename T2, typename T3, typename T4,
207         typename T5, typename T6, typename T7>
208type_of_size<8> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7));
209
210template<typename R, typename T1, typename T2, typename T3, typename T4,
211         typename T5, typename T6, typename T7, typename T8>
212type_of_size<9> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7, T8));
213
214template<typename R, typename T1, typename T2, typename T3, typename T4,
215         typename T5, typename T6, typename T7, typename T8, typename T9>
216type_of_size<10> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7, T8, 
217                                              T9));
218
219template<typename R, typename T1, typename T2, typename T3, typename T4,
220         typename T5, typename T6, typename T7, typename T8, typename T9,
221         typename T10>
222type_of_size<11> function_arity_helper(R (*f)(T1, T2, T3, T4, T5, T6, T7, T8, 
223                                              T9, T10));
224} // end namespace detail
225
226// Won't work with references
227template<typename Function>
228struct function_traits
229{
230  BOOST_STATIC_CONSTANT(unsigned, arity = (sizeof(boost::detail::function_arity_helper((Function*)0))-1));
231};
232
233#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
234}
235
236#endif // BOOST_TT_FUNCTION_TRAITS_HPP_INCLUDED
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