LazyEvaluate< T, M, create, destroy > Class Template Reference

#include <LazyEvaluate.h>

Collaboration diagram for LazyEvaluate< T, M, create, destroy >:

Public Member Functions
	LazyEvaluate (const M &metadata)
	LazyEvaluate (M &&metadata)
	LazyEvaluate (T *value)
	LazyEvaluate (T *value, const M &metadata)
	LazyEvaluate (T *value, M &&metadata)
bool	active () const
void	reset ()
T *	get ()
T *	operator-> ()
T &	operator* ()
	operator bool () const
	operator T * ()

Private Member Functions
	NOT_COPYABLE_OR_ASSIGNABLE (LazyEvaluate)

Private Attributes
M	m_Metadata
T *	m_Field
bool	m_Ok

Detailed Description

template<class T, class M, T *(*)(const M &) create, void(*)(T *) destroy>
class LazyEvaluate< T, M, create, destroy >

LazyEvaluate offers a way to defer potentially-expensive evaluation to the time at which the result of the evaluation is needed. This can allow for reduced memory usage and better performance, especially in cases where many objects are available for evaluation but only a few actually become evaluated.

Parameters

[in]	T	the result type of the evaluation
[in]	M	type for metadata to be passed to creation function
[in]	create	a function that performs evaluation based on the given metadata
[in]	destroy	a function that cleans up an evaluation if needed

Definition at line 40 of file LazyEvaluate.h.

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

• LazyEvaluate.h