[Scilab-Dev] Scilab need a way to track variable deletion.

[Antoine ELIAS]

Hi Jonathan,

My understanding :

a = your_custom_function_returns_pointer_to_scilab();
//this function allocates custom data and returns a pointer
typeof(a)
ans  =

pointer

//...
//do something
//...
a = 1;

At this moment you want to be inform of data removal for delete your data ?

I don't see any way to "overload" data removal mechanism in Scilab 5.x.
For the new kernel, we can keep in mind this feature to provide 
mechanism to delete "external data".

Regards,
ELIAS Antoine
antoine.elias at scilab.org

Jonathan Blanchard a écrit :
> Hi all,
>
> While working on a toolbox for using multi precision numbers in Scilab
> it as become clear that a way of tracking Scilab variable destruction
> would be ideal.
>
> Why is it needed is when a Scilab variable has some anonymous memory(
> i.e. not in the scilab stack) associated with it.
>
> Especially useful would be a way to hook against variable removal or
> overwrite with a custom function for the structure.
>
> Would it be possible to see such function in a future version of Scilab?
>
>
> Jonathan Blanchard
>