Re: Ada 2005,Doubly_Linked_List with Controlled parameter

[George J <ivanov_george@list.ru>]

> Note that you can write something like your original code, but it has to use 
> reference counts and an overriding of Adjust in order to manage the access 
> value properly (since the container copies the objects, and thus you have to 
> support that). I think Christoph Grein's safe pointers give an example of 
> how that could be done.
> 
> In this case, the various alternatives suggested are better, since the 
> compiler/runtime is doing that complicated work and you don't have to. But 
> sometimes you need to manage an object this way, so it's valuable to know 
> that it is possible.
> 
>                               Randy.

Thanks, Randy! I've found and added Christoph Grein's "Safe pointers" materials to bookmarks to read some later.