Re: Question about arrays and no. of elements

[Ludovic Brenta <ludovic@ludovic-brenta.org>]

Jacob Sparre Andersen writes:
> amal.alphonse writes:
>
>> If I define an array with say a million elements, and I only put
>> data in 10 of them, is it actually a waste of space/time with the
>> array or does Ada only create elements when there is data to put in
>> (so it is efficient)?
>
> With GNAT on Linux, you will only use memory for the part of the array
> you put something into (modulo the page size - which I think is 4 kb).

Actually, that's a kernel feature (commit-on-write) independent of the
compiler.

-- 
Ludovic Brenta.