1 |
tim |
962 |
#ifndef _FUNCTOR_H_
|
2 |
tim |
939 |
#define _FUNCTOR_H_
|
3 |
|
|
|
4 |
tim |
1007 |
#include <vector>
|
5 |
|
|
|
6 |
|
|
using namespace std;
|
7 |
|
|
|
8 |
|
|
class ObjFunctor0{
|
9 |
|
|
public:
|
10 |
|
|
virtual double operator()(vector<double>&)=0;
|
11 |
|
|
};
|
12 |
|
|
|
13 |
|
|
class PtrFunctor0 : ObjFunctor0{
|
14 |
|
|
|
15 |
|
|
public:
|
16 |
|
|
|
17 |
|
|
PtrFunctor0(double (*thePtrFunc)(vector<double>&)){
|
18 |
|
|
ptrFunc = thePtrFunc;
|
19 |
|
|
}
|
20 |
|
|
|
21 |
|
|
virtual double operator()(vector<double>& arg){
|
22 |
|
|
return (*ptrFunc)(arg);
|
23 |
|
|
};
|
24 |
|
|
|
25 |
|
|
protected:
|
26 |
|
|
double (*ptrFunc)(vector<double>&);
|
27 |
|
|
};
|
28 |
|
|
|
29 |
|
|
|
30 |
|
|
//ClassMemObjFunctor class wraps a pointer pointing to a member function of a class
|
31 |
|
|
//
|
32 |
|
|
template<typename TClass>
|
33 |
|
|
class ClassMemObjFunctor0 : public ObjFunctor0{
|
34 |
|
|
public:
|
35 |
|
|
ClassMemObjFunctor0(TClass* thePtrClass, double (TClass::*thePtrFunc)(vector<double>&)){
|
36 |
|
|
ptrClass = thePtrClass;
|
37 |
|
|
ptrFunc = thePtrFunc;
|
38 |
|
|
}
|
39 |
|
|
|
40 |
|
|
double operator()(vector<double>& arg){
|
41 |
|
|
return (*ptrClass.*ptrFunc)(arg);
|
42 |
|
|
}
|
43 |
|
|
protected:
|
44 |
|
|
|
45 |
|
|
double (TClass::*ptrFunc)(vector<double>&);
|
46 |
|
|
TClass* ptrClass;
|
47 |
|
|
};
|
48 |
|
|
|
49 |
tim |
939 |
/**
|
50 |
|
|
* Abstract class of object function which have an overloaded method
|
51 |
|
|
* to calculate the gradient
|
52 |
|
|
*/
|
53 |
|
|
|
54 |
tim |
987 |
class ObjFunctor1{
|
55 |
tim |
939 |
|
56 |
|
|
public:
|
57 |
|
|
virtual double operator()(vector<double>&, vector<double>&)=0;
|
58 |
|
|
|
59 |
|
|
};
|
60 |
|
|
|
61 |
|
|
//PtrFunctor class wraps a pointer which points to an objct function.
|
62 |
|
|
// PtrFunctor can be invoked by
|
63 |
|
|
// functor(vector<double>&, vector<double>&)
|
64 |
tim |
987 |
class PtrFunctor1 : ObjFunctor1{
|
65 |
tim |
939 |
|
66 |
|
|
public:
|
67 |
|
|
|
68 |
tim |
987 |
PtrFunctor1(double (*thePtrFunc)(vector<double>&, vector<double>&)){
|
69 |
tim |
939 |
ptrFunc = thePtrFunc;
|
70 |
|
|
}
|
71 |
|
|
|
72 |
|
|
virtual double operator()(vector<double>& arg, vector<double>& grad){
|
73 |
|
|
return (*ptrFunc)(arg, grad);
|
74 |
|
|
};
|
75 |
|
|
|
76 |
|
|
protected:
|
77 |
|
|
double (*ptrFunc)(vector<double>&, vector<double>&);
|
78 |
|
|
};
|
79 |
|
|
|
80 |
|
|
//ClassMemObjFunctor class wraps a pointer pointing to a member function of a class
|
81 |
|
|
//
|
82 |
|
|
template<typename TClass>
|
83 |
tim |
987 |
class ClassMemObjFunctor1 : public ObjFunctor1{
|
84 |
tim |
939 |
public:
|
85 |
tim |
987 |
ClassMemObjFunctor1(TClass* thePtrClass, double (TClass::*thePtrFunc)(vector<double>&, vector<double>&)){
|
86 |
tim |
939 |
ptrClass = thePtrClass;
|
87 |
|
|
ptrFunc = thePtrFunc;
|
88 |
|
|
}
|
89 |
|
|
|
90 |
tim |
1007 |
double operator()(vector<double>&arg, vector<double>&grad){
|
91 |
|
|
return (*ptrClass.*ptrFunc)(arg, grad);
|
92 |
tim |
939 |
}
|
93 |
|
|
protected:
|
94 |
|
|
|
95 |
|
|
double (TClass::*ptrFunc)(vector<double>&, vector<double>&);
|
96 |
|
|
TClass* ptrClass;
|
97 |
|
|
};
|
98 |
|
|
|
99 |
|
|
#endif
|