Re: Question: Combination of Access and Constraining

[papand0pul0@yahoo.com (Papandopulo)]

> Pointers are inherently bad. Why not:
If they are ingerently bad why they are in
the language ?

> function Fn (Arg : Tp) return Natural;
I have to use access type here. Since this is
simplified example. I have function accepting
several such array arguments each of which is
optional (null).

> But this is another type! Probably you meant a subtype:
> 
> subtype TpCon is Tp(1..1);
Nope, now it says:
warning: aliased object has explicit bounds.

> >So where I am going wrong here ?
> 
> You are mixing types and subtypes. If you want just to put a
> constraint on a type, declare a constrained subtype.
Gives warnings as I said before: variable with constrained subtype
can't be aliased (any idea why?).

Thanx,
George.