Isis::PointerCopy< T > Struct Template Reference

Pointer to object policy for copying map elements. More...

#include <CollectorMap.h>

Collaboration diagram for Isis::PointerCopy< T >:

Protected Member Functions
T	copy (const T &src) const
	Allocate new object using copy construtor and new pointer. More...

Private Member Functions
template<typename P >
P *	allocate (const P &obj) const
	Allocate new object using copy constructor. More...

Detailed Description

template<typename T>
struct Isis::PointerCopy< T >

Pointer to object policy for copying map elements.

Defines a copy method to properly handle pointers to objects (assumed) when copying the complete CollectorMap. This implementation assumes the copy constructor properly handles the creation of a new element from a different one.

This policy assumes the assignment operator handles the proper copying of each element T* in the collection.

This employs an intersting technique of redirection. Because the type T is actually T*, the templated allocate() method exists to get down to the T class base level. Looks strange but it works.

Definition at line 214 of file CollectorMap.h.

Member Function Documentation

allocate()

template<typename T >

template<typename P >

P* Isis::PointerCopy< T >::allocate ( const P &  obj ) const

inlineprivate

Allocate new object using copy constructor.

Parameters

obj	Source object to create new one from

Returns

P* Pointer to newly allocated object

Definition at line 239 of file CollectorMap.h.

Referenced by Isis::PointerCopy< T >::copy().

copy()

template<typename T >

T Isis::PointerCopy< T >::copy ( const T &  src ) const

inlineprotected

Allocate new object using copy construtor and new pointer.

This copy method takes a pointer to a pointer (T is actually a T*) and allocates a new object using the copy constructor.

Parameters

src	Pointer to pointer of new class to allocate

Returns

T Pointer to new object type T

Definition at line 226 of file CollectorMap.h.

References Isis::PointerCopy< T >::allocate().

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

• src/base/objs/CollectorMap/CollectorMap.h