summaryrefslogtreecommitdiff
path: root/boost/numeric/odeint/util/unwrap_reference.hpp
blob: d622a5c0077c4f1d942fd97c02ccb7c0af67e9f2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
/*
 [auto_generated]
 boost/numeric/odeint/util/unwrap_reference.hpp

 [begin_description]
 unwrap_reference
 [end_description]

 Copyright 2012-2013 Karsten Ahnert
 Copyright 2012-2013 Mario Mulansky

 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or
 copy at http://www.boost.org/LICENSE_1_0.txt)
 */


#ifndef BOOST_NUMERIC_ODEINT_UTIL_UNWRAP_REFERENCE_HPP_INCLUDED
#define BOOST_NUMERIC_ODEINT_UTIL_UNWRAP_REFERENCE_HPP_INCLUDED


#include <boost/numeric/odeint/config.hpp>


#if BOOST_NUMERIC_ODEINT_CXX11
#include <functional>
#else
#include <boost/ref.hpp>
#endif

namespace boost {

#if BOOST_NUMERIC_ODEINT_CXX11
template<typename T> class reference_wrapper;

template<typename T> class unwrap_reference;
#endif

namespace numeric {
namespace odeint {


#if BOOST_NUMERIC_ODEINT_CXX11

template<typename T>
class unwrap_reference
{
public:
    typedef typename std::remove_reference<T>::type type;
};

template<typename T>
class unwrap_reference< std::reference_wrapper<T> >
{
public:
    typedef typename std::remove_reference<T>::type type;
};

template<typename T>
class unwrap_reference< boost::reference_wrapper<T> >
{
public:
        typedef typename boost::unwrap_reference<T>::type type;
};

#else

using ::boost::unwrap_reference;

#endif

namespace detail
{

#if BOOST_NUMERIC_ODEINT_CXX11

using ::std::ref;

#else

using ::boost::ref;

#endif
}

}
}
}



/*
 * 
 * the following is the suggested way, but unfortunately it does not work with all compilers.
 */

/*

#include <boost/config.hpp>


#ifdef BOOST_NO_CXX11_HDR_FUNCTIONAL
#include <boost/ref.hpp>
#else
#include <functional>
#endif



namespace boost {
namespace numeric {
namespace odeint {


#ifndef BOOST_NO_CXX11_HDR_FUNCTIONAL

template<typename T>
struct unwrap_reference
{
    typedef typename std::remove_reference<T>::type type;
};

template<typename T>
struct unwrap_reference< std::reference_wrapper<T> >
{
    typedef typename std::remove_reference<T>::type type;
};

template<typename T>
struct unwrap_reference< boost::reference_wrapper<T> >
{
    typedef typename boost::unwrap_reference<T>::type type;
};

#else

using ::boost::unwrap_reference;

#endif

}
}
}

namespace boost {
namespace numeric {
namespace odeint {  
namespace detail {


#ifndef BOOST_NO_CXX11_HDR_FUNCTIONAL

using ::std::ref;

#else

using ::boost::ref;

#endif


}
}
}
}

*/

#endif // BOOST_NUMERIC_ODEINT_UTIL_UNWRAP_REFERENCE_HPP_INCLUDED