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From: johnherro@aol.com (John Herro)
Subject: Re: Implementing pointers to pointers in Ada
Date: 1996/09/09
Message-ID: <511sp9$ogs@newsbf02.news.aol.com>#1/1
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references: <Pine.GSO.3.93.960909230243.7142A-100000@firefly.sd.monash.edu.au>
organization: America Online, Inc. (1-800-827-6364)
newsgroups: comp.lang.ada
Date: 1996-09-09T00:00:00+00:00
List-Id: <comp.lang.ada>


Vasilios Tourloupis <vasilios@insect.sd.monash.edu.au> asks:
> unsigned **a;
> How would this be expressed in Ada?

with Interfaces;
...
   type P is access Interfaces.Unsigned_32;
   type P2 is access P;
   A : P2;

Of course, it's not obvious WHY you want to use two levels of indirection.
 Sometimes, instead of directly translating C to Ada, it's better to think
the problem through again, and see if Ada offers a better way of solving
the problem.  In general, Ada has a LOT less need of pointers (access
types) than C.
- John Herro
Software Innovations Technology
http://members.aol.com/AdaTutor
ftp://members.aol.com/AdaTutor