Re: Access keyword

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

Sébastien wrote:
> I'd like to know if there is performance issue using the access keyword?
[snipped]
> Is NormeAccess faster because I'm using access keyword?

Have you measured a speed difference, or compared the assembly code
emitted by the compiler?

> I read that Ada
> compiler choose if a reference or a value mode is used in the Norme
> function, so it would mean that the access keyword should be used only
> for runtime allocated variable.

This is correct so, in your example, NormeAccess is unnecessary.
However there are legitimate uses of acces types beyond dymanic memory
allocation. For example a stack-allocated record may contain an access
to another stack-allocated record or array. Another use for access
types is access discriminants, but this is an advanced topic.

--
Ludovic Brenta.