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#ifndef _FUNCTOR_H |
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#ifndef _FUNCTOR_H_ |
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#define _FUNCTOR_H_ |
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#include <vector> |
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using namespace std; |
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class ObjFunctor0{ |
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public: |
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|
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virtual ~ObjFunctor0() {} |
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virtual double operator()(vector<double>&)=0; |
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}; |
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class PtrFunctor0 : public ObjFunctor0{ |
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public: |
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PtrFunctor0(double (*thePtrFunc)(vector<double>&)){ |
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ptrFunc = thePtrFunc; |
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} |
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|
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virtual double operator()(vector<double>& arg){ |
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return (*ptrFunc)(arg); |
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}; |
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|
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protected: |
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double (*ptrFunc)(vector<double>&); |
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}; |
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//ClassMemObjFunctor class wraps a pointer pointing to a member function of a class |
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// |
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template<typename TClass> |
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class ClassMemObjFunctor0 : public ObjFunctor0{ |
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public: |
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ClassMemObjFunctor0(TClass* thePtrClass, double (TClass::*thePtrFunc)(vector<double>&)){ |
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ptrClass = thePtrClass; |
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ptrFunc = thePtrFunc; |
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} |
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|
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double operator()(vector<double>& arg){ |
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return (*ptrClass.*ptrFunc)(arg); |
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} |
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protected: |
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|
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double (TClass::*ptrFunc)(vector<double>&); |
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TClass* ptrClass; |
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}; |
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|
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/** |
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* Abstract class of object function which have an overloaded method |
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* to calculate the gradient |
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*/ |
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class ObjFunctor{ |
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class ObjFunctor1{ |
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public: |
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virtual ~ObjFunctor1() {} |
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virtual double operator()(vector<double>&, vector<double>&)=0; |
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}; |
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– |
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– |
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//PtrFunctor class wraps a pointer which points to an objct function. |
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// PtrFunctor can be invoked by |
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// functor(vector<double>&, vector<double>&) |
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class PtrFunctor : ObjFunctor{ |
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class PtrFunctor1 : public ObjFunctor1{ |
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public: |
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PtrFunctor(double (*thePtrFunc)(vector<double>&, vector<double>&)){ |
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PtrFunctor1(double (*thePtrFunc)(vector<double>&, vector<double>&)){ |
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ptrFunc = thePtrFunc; |
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} |
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virtual double operator()(vector<double>& arg, vector<double>& grad){ |
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return (*ptrFunc)(arg, grad); |
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}; |
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//ClassMemObjFunctor class wraps a pointer pointing to a member function of a class |
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// |
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template<typename TClass> |
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class ClassMemObjFunctor : public ObjFunctor{ |
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class ClassMemObjFunctor1 : public ObjFunctor1{ |
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public: |
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ClassMemObjFunctor(TClass* thePtrClass, double (TClass::*thePtrFunc)(vector<double>&, vector<double>&)){ |
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ClassMemObjFunctor1(TClass* thePtrClass, double (TClass::*thePtrFunc)(vector<double>&, vector<double>&)){ |
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ptrClass = thePtrClass; |
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ptrFunc = thePtrFunc; |
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} |
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double operator()(vector<double>&, vector<double>&){ |
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return (*ptrClass.*ptrFunc))(arg, grad); |
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double operator()(vector<double>&arg, vector<double>&grad){ |
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return (*ptrClass.*ptrFunc)(arg, grad); |
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} |
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protected: |
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