Re: strange cursor in nested containers

[Egil H H <ehh.public@gmail.com>]

On Wednesday, April 19, 2023 at 9:09:48 AM UTC+2, Mario Blunk wrote:
> Hello out there, 
> I've put together a demo to reproduce a strange behavior of a cursor. 
> 
> https://github.com/Blunk-electronic/ada_training/blob/master/src/containers/demo/nested/nest_1.adb 
> 

Each call to `element(n)` returns a _copy_ of the element, which in this case includes the enitre doubly linked list
(and since `net` is a renames of `element(n), you would have gotten multiple copies if you had called `net` multiple times inside query net)

Using a reference instead should fix this problem:
			net : type_net renames nets.reference (key(n));

or (Ada 2012):
			net : type_net renames nets(n);

-- 
~egilhh