This evaluation policy uses previously cached results when possible. More...

#include <Cached.h>

Inheritance diagram for MEAL::Cached< T >:

Public Types
typedef T::Result	Result

Public Member Functions
	Cached (T *context)
	Default constructor.
Result	evaluate (std::vector< Result > *gradient=0) const
	Implement the evaluate method of the Function.
std::string	class_name () const
	Return the name of the class for debugging.
Public Member Functions inherited from MEAL::CalculatePolicy< T >
	CalculatePolicy (T *context)
	Default destructor.
void	calculate (Result &r, std::vector< Result > *grad) const
Public Member Functions inherited from MEAL::EvaluationPolicy< T::Result >
	EvaluationPolicy (Function *context)
	Default destructor.
virtual Result	evaluate (std::vector< Result > *grad=0) const=0
	Return the result (and its gradient, if requested)
Public Member Functions inherited from MEAL::FunctionPolicy
	FunctionPolicy (Function *context=0)
	Default constructor.
	~FunctionPolicy ()
	Destructor.
Function *	get_context () const
	Return the Function for whom this policy operates.
Public Member Functions inherited from Reference::Able
	Able (const Able &)
Able &	operator= (const Able &)
unsigned	get_reference_count () const
Public Member Functions inherited from Reference::HeapTracked
	HeapTracked (const HeapTracked &)
HeapTracked &	operator= (const HeapTracked &)
bool	__is_on_heap () const

Protected Member Functions
void	update (bool need_gradient) const
	Updates the result (and gradient when needed)
void	update (bool need_gradient)
Protected Member Functions inherited from Reference::Able
Handle *	__reference (bool active) const
void	__dereference (bool auto_delete=true) const

Protected Attributes
Result	cached_result
	The result cached in the last call to calculate.
std::vector< Result >	cached_gradient
	The gradient cached in the last call to calculate.
Protected Attributes inherited from MEAL::CalculatePolicy< T >
T *	calculate_context
	The object that implements a calculate method.

Additional Inherited Members
Static Public Member Functions inherited from Reference::Able
static size_t	get_instance_count ()
Static Public Member Functions inherited from Reference::HeapTracked
static void *	operator new (size_t size, void *ptr=0)
static void	operator delete (void location, void ptr)
static void	operator delete (void *location)
static size_t	get_heap_queue_size ()

Detailed Description

template<class T>
class MEAL::Cached< T >

This evaluation policy uses previously cached results when possible.

This class re-computes the cached values of the result and gradient only if the context has been altered.

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

Public Types