class ROOT::Math::Functor: public ROOT::Math::IBaseFunctionMultiDim


   Documentation for class Functor class.
   It is used to wrap in a very simple and convenient way multi-dimensional function objects.
   It can wrap all the following types:
   <ul>
   <li> any C++ callable object implemention double operator()( const double *  )
   <li> a free C function of type double ()(double * )
   <li> a member function with the correct signature like Foo::Eval(const double * ).
       In this case one pass the object pointer and a pointer to the member function (&Foo::Eval)
   </ul>
   The function dimension is required when constructing the functor.

   @ingroup  GenFunc

Function Members (Methods)

public:

virtual	~Functor()
virtual ROOT::Math::Functor::ImplBase*	Clone() const
ROOT::Math::Functor	Functor()
ROOT::Math::Functor	Functor(const ROOT::Math::Functor&)
ROOT::Math::Functor	Functor(void* p, unsigned int dim, const char* className = 0, const char* methodName = 0)
virtual unsigned int	NDim() const
double	ROOT::Math::IBaseFunctionMultiDim::operator()(const double* x) const
ROOT::Math::Functor&	operator=(const ROOT::Math::Functor& rhs)

private:

virtual double

DoEval(const double* x) const

Data Members

private:

auto_ptr<ROOT::Math::IBaseFunctionMultiDim>	fImpl	pointer to base functor handler

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

BaseFunc * Clone() const

 clone of the function handler (use copy-ctor)

unsigned int NDim() const

 constructor for multi-dimensional functions

double DoEval(const double* x) const

Functor()

      Default constructor

{}

Functor(const PtrObj& p, MemFn memFn, unsigned int dim )

       construct from a pointer to member function (multi-dim type)

{}

Functor( const Func & f, unsigned int dim )

      construct from a callable object of multi-dimension
      with the right signature (implementing operator()(double *x)

{}

virtual ~Functor()

      Destructor (no operations)

{}