Re: advent of code day 11

[John Perry <john.perry@usm.edu>]

On Friday, December 11, 2020 at 1:29:58 PM UTC-6, gautier...@hotmail.com wrote:
> The ":=" makes a complete copy of the arrays.

That's what I was afraid of. 

> Of course it feels a bit heavy to make all those copies. And you understandably want to avoid playing with pointers.

Exactly!

So a solution is to define: 
> Map : array (0 .. 1) of Chart_Array; 
> ... 
> current := 0; 
> loop 
> next := 1 - current; 
> Perform_Round( Source => Map (current), Result => Map (next) , ... ); 
> current := next; 
> end loop;

This is a nice alternative, thanks.