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Pointers (Perl and Access VBA Cross Reference Guide)

By Mike Prestwood

Perl versus Access VBA: A side by side comparison between Perl and Access VBA.

 
Data Structures
 

Data structures allow you to store and work with data. Common data structures include arrays, associative arrays, etc.

Pointers

[Other Languages] 

General Info: Pointers / References

A pointer is a variable type that allows you to refer indirectly to another object. Instead of holding data, a pointer holds the address to data -- the address of another variable or object. You can change the address value a pointer points to thus changing the variable or object the pointer is pointing to.

A reference is a type of pointer that cannot change and it must always point to a valid storage (no nulls).

Perl: 

Perl supports both pointers and references.

Access VBA:   Not Supported

Same as VB Classic. Access VBA does not offer developer defined pointers.













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