inet::math::MemoizedFunction< R, D > Class Template Reference

Truncates the values of a multidimensional function outside the given domain to 0. More...

#include <CompoundFunctions.h>

Inheritance diagram for inet::math::MemoizedFunction< R, D >:

Public Member Functions
	MemoizedFunction (const Ptr< const IFunction< R, D >> &function, int limit=INT_MAX)
virtual R	getValue (const typename D::P &p) const override
	Returns the value of the function at the given point. More...
virtual void	partition (const typename D::I &i, std::function< void(const typename D::I &, const IFunction< R, D > *)> callback) const override
Public Member Functions inherited from inet::math::FunctionBase< R, D >
virtual void	partition (const typename D::I &i, const std::function< void(const typename D::I &, const IFunction< R, D > *)> callback) const override
	Subdivides the provided domain and calls back f with the subdomains and the corresponding potentially simpler domain limited functions. More...
virtual Interval< R >	getRange () const override
	Returns the valid range of the function as an interval. More...
virtual Interval< R >	getRange (const typename D::I &i) const override
	Returns the valid range of the function as an interval for the given domain. More...
virtual D::I	getDomain () const override
	Returns the valid domain of the function as an interval. More...
virtual bool	isFinite () const override
	Returns true if the function value is finite in the whole domain. More...
virtual bool	isFinite (const typename D::I &i) const override
	Returns true if the function value is finite in the given domain. More...
virtual bool	isNonZero () const override
	Returns true if the function value is non-zero in the whole domain. More...
virtual bool	isNonZero (const typename D::I &i) const override
	Returns true if the function value is non-zero in the given domain. More...
virtual R	getMin () const override
	Returns the minimum value for the whole domain. More...
virtual R	getMin (const typename D::I &i) const override
	Returns the minimum value for the given domain. More...
virtual R	getMax () const override
	Returns the maximum value for the whole domain. More...
virtual R	getMax (const typename D::I &i) const override
	Returns the maximum value for the given domain. More...
virtual R	getMean () const override
	Returns the mean value for the whole domain. More...
virtual R	getMean (const typename D::I &i) const override
	Returns the mean value for the given domain. More...
virtual R	getIntegral () const override
	Returns the integral value for the whole domain. More...
virtual R	getIntegral (const typename D::I &i) const override
	Returns the integral value for the given domain. More...
virtual const Ptr< const IFunction< R, D > >	add (const Ptr< const IFunction< R, D >> &o) const override
	Adds the provided function to this function. More...
virtual const Ptr< const IFunction< R, D > >	subtract (const Ptr< const IFunction< R, D >> &o) const override
	Substracts the provided function from this function. More...
virtual const Ptr< const IFunction< R, D > >	multiply (const Ptr< const IFunction< double, D >> &o) const override
	Multiplies the provided function with this function. More...
virtual const Ptr< const IFunction< double, D > >	divide (const Ptr< const IFunction< R, D >> &o) const override
	Divides this function with the provided function. More...
virtual std::ostream &	printOn (std::ostream &os) const override
virtual void	print (std::ostream &os, int level=0) const override
	Prints this function in human readable form to the provided stream for the whole domain. More...
virtual void	print (std::ostream &os, const typename D::I &i, int level=0) const override
	Prints this function in a human readable form to the provided stream for the given domain. More...
virtual void	printPartitioning (std::ostream &os, const typename D::I &i, int level) const override
	Prints the partitioning of this function in a human readable form to the provided stream for the given domain. More...
virtual void	printPartition (std::ostream &os, const typename D::I &i, int level=0) const override
	Prints a single partition of this function in a human readable form to the provided stream for the given domain. More...
virtual void	printStructure (std::ostream &os, int level=0) const override
	Prints the internal data structure of this function in a human readable form to the provided stream. More...
Public Member Functions inherited from inet::math::IFunction< R, D >
virtual	~IFunction ()

Protected Attributes
const Ptr< const IFunction< R, D > >	function
const int	limit
std::map< typename D::P, R >	cache

Detailed Description

template<typename R, typename D>
class inet::math::MemoizedFunction< R, D >

Truncates the values of a multidimensional function outside the given domain to 0.

Caches the values of a multidimensional function.

Constructor & Destructor Documentation

MemoizedFunction()

template<typename R , typename D >

inet::math::MemoizedFunction< R, D >::MemoizedFunction ( const Ptr< const IFunction< R, D >> &  function, int  limit = INT_MAX  )

inline

                                                                                      :
        function(function), limit(limit) {}

Member Function Documentation

getValue()

template<typename R , typename D >

virtual R inet::math::MemoizedFunction< R, D >::getValue ( const typename D::P &  p ) const

inlineoverridevirtual

Returns the value of the function at the given point.

The returned value falls into the range of the function. The provided point must fall into the domain of the function.

Implements inet::math::IFunction< R, D >.

                                                            {
        auto it = cache.find(p);
        if (it != cache.end())
            return it->second;
        else {
            R v = function->getValue(p);
#ifdef _OPENMP
#pragma omp critical
#endif
            {
                cache[p] = v;
                if ((int)cache.size() > limit)
                    cache.clear();
            }
            return v;
        }
    }

partition()

template<typename R , typename D >

virtual void inet::math::MemoizedFunction< R, D >::partition ( const typename D::I &  i, std::function< void(const typename D::I &, const IFunction< R, D > *)>  callback  ) const

inlineoverridevirtual

                                                                                                                                         {
        function->partition(i, callback);
    }

Member Data Documentation

cache

template<typename R , typename D >

std::map<typename D::P, R> inet::math::MemoizedFunction< R, D >::cache

mutableprotected

function

template<typename R , typename D >

const Ptr<const IFunction<R, D> > inet::math::MemoizedFunction< R, D >::function

protected

limit

template<typename R , typename D >

const int inet::math::MemoizedFunction< R, D >::limit

protected

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The documentation for this class was generated from the following file:

• CompoundFunctions.h