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
|
// MemFun.hh for FbTk, Fluxbox Toolkit
// Copyright (c) 2008 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#ifndef FBTK_MEM_FUN_HH
#define FBTK_MEM_FUN_HH
namespace FbTk {
/// No argument functor
template <typename ReturnType, typename Object>
class MemFun0 {
public:
typedef ReturnType (Object:: *Action)();
MemFun0(Object& obj, Action action):
m_obj(obj),
m_action(action) {
}
void operator ()() {
(m_obj.*m_action)();
}
private:
Object& m_obj;
Action m_action;
};
template <typename ReturnType, typename Object>
MemFun0<ReturnType, Object>
MemFun( Object& obj, ReturnType (Object:: *action)() ) {
return MemFun0<ReturnType, Object>(obj, action);
}
/// One argument functor
template <typename ReturnType, typename Object, typename Arg1>
class MemFun1 {
public:
typedef ReturnType (Object:: *Action)(Arg1);
MemFun1(Object& obj, Action action):
m_obj(obj),
m_action(action) {
}
void operator ()(Arg1 arg1) {
(m_obj.*m_action)(arg1);
}
private:
Object& m_obj;
Action m_action;
};
/// One argument functor helper function
template <typename ReturnType, typename Object, typename Arg1>
MemFun1<ReturnType, Object, Arg1>
MemFun( Object& obj, ReturnType (Object:: *action)(Arg1) ) {
return MemFun1<ReturnType, Object, Arg1>(obj, action);
}
/// Two argument functor
template <typename ReturnType, typename Object, typename Arg1, typename Arg2>
class MemFun2 {
public:
typedef ReturnType (Object:: *Action)(Arg1,Arg2);
MemFun2(Object& obj, Action action):
m_obj(obj),
m_action(action) {
}
void operator ()(Arg1 arg1, Arg2 arg2) {
(m_obj.*m_action)(arg1, arg2);
}
private:
Object& m_obj;
Action m_action;
};
/// Two argument functor helper function
template <typename ReturnType, typename Object, typename Arg1, typename Arg2>
MemFun2<ReturnType, Object, Arg1, Arg2>
MemFun( Object& obj, ReturnType (Object:: *action)(Arg1,Arg2) ) {
return MemFun2<ReturnType, Object, Arg1, Arg2>(obj, action);
}
/// Three argument functor
template <typename ReturnType, typename Object,
typename Arg1, typename Arg2, typename Arg3>
class MemFun3 {
public:
typedef ReturnType (Object:: *Action)(Arg1,Arg2,Arg3);
MemFun3(Object& obj, Action action):
m_obj(obj),
m_action(action) {
}
void operator ()(Arg1 arg1, Arg2 arg2, Arg3 arg3) {
(m_obj.*m_action)(arg1, arg2, arg3);
}
private:
Object& m_obj;
Action m_action;
};
/// Three argument functor helper
template <typename ReturnType, typename Object, typename Arg1, typename Arg2, typename Arg3>
MemFun3<ReturnType, Object, Arg1, Arg2, Arg3>
MemFun( Object& obj, ReturnType (Object:: *action)(Arg1, Arg2, Arg3) ) {
return MemFun3<ReturnType, Object, Arg1, Arg2, Arg3>(obj, action);
}
} // namespace FbTk
#endif // FBTK_MEM_FUN_HH
|
