Help with global variables and classes

[Mario Ezequiel Ginsberg]

First of all, I apologize for my poor english, I'm using the google translator to write this post.

This is my problem:

Imagine that i've this class:

class Example {
    int hello;
}

And I need to do something like this

extern int Aux;
Example ex;
ex.hello = Aux;

I want to know if there's a way to delete Aux because i'll never use it again (and it consumes memory). Or at least a way to assign a value to ex.hello from outside (extern mode).

Thank you very much! 

[Taskin Osman]

dont worry about 2 bytes of data. extern variables cannot be deleted, there is no usage

[Carl Schreiber]

You can only free arrays: ArrayFree()

It frees up a buffer of any dynamic array and sets the size of the zero dimension to 0.