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From: Szymon Guz <alpha@skynet.org.pl_WITHOUT>
Subject: Re: pointer questions
Date: Thu, 27 Oct 2005 12:19:51 +0200
Date: 2005-10-27T12:19:51+02:00	[thread overview]
Message-ID: <djq9lc$1h9a$1@node3.news.atman.pl> (raw)
In-Reply-To: <A_Z7f.2112$Rl1.1471@newsread1.news.pas.earthlink.net>

Jeffrey R. Carter napisał(a):
> Szymon Guz wrote:
> 
>> I've got some maybe stupid questions but I don't understand some things:
>>
>> 1. Is there a pointer like (void *) from C that points to anything ?
>>
>> 2. Is there a universal (like above) pointer for procedure|function 
>> that  can point to any kind of procedure|funcion ?
> 
> 
> The short answer, as you've already heard, is No.
> 
> The long answer is that you'll never need these to use Ada. In fact, 
> you'll rarely need pointers at all. If you think you do, especially for 
> beginning Ada, then you're probably misunderstanding something.
> 
> About the only time you'd need anything like these is when interfacing 
> to C. Judging from your questions, I suspect your understanding of Ada 
> is not yet at a level where you should be doing that.
> 

Well, that's how I thought but I wanted to ask. The problem that I want 
to solve is how to create a property in type like that ones in 
Delphi|Builder, so I have defined the property name, value, read and 
write functions. I thought that it could be done by defining a generic 
structure like this:

Name
Value
Get_Function
Set_Function

when Value is a pointer to value, Get and Set are pointers to function 
for setting and getting the value. That's why I thought about universal 
variable pointer.
.........................
Well, now I sought that it ca easily be done without any pointer, sorry

regards
szymon guz



  reply	other threads:[~2005-10-27 10:19 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-26 23:01 pointer questions Szymon Guz
2005-10-26 23:51 ` Gene
2005-10-26 23:58 ` tmoran
2005-10-27  1:12 ` Stephen Leake
2005-10-27  2:30 ` Steve
2005-10-27  5:56 ` Jeffrey R. Carter
2005-10-27 10:19   ` Szymon Guz [this message]
2005-10-27 14:14     ` Robert A Duff
2005-11-07  4:21       ` Dave Thompson
2005-10-27 14:11   ` Robert A Duff
2005-10-27 15:13     ` Marc A. Criley
2005-10-27 18:53       ` Jeffrey R. Carter
2005-10-27 17:29     ` Martin Dowie
2005-10-27 18:28       ` Marc A. Criley
2005-10-27 19:28         ` Martin Dowie
2005-10-28  0:12           ` Robert A Duff
2005-10-28 11:57           ` Dr. Adrian Wrigley
2005-10-28 21:26             ` Jeffrey R. Carter
2005-10-30 22:26               ` Robert A Duff
2005-10-31  6:21                 ` Jeffrey R. Carter
2005-11-02  0:52                   ` Dr. Adrian Wrigley
2005-11-02  3:46                     ` Jeffrey R. Carter
2005-11-02 11:16                       ` Dr. Adrian Wrigley
2005-11-02 13:39                     ` Robert A Duff
2005-11-02 15:34                     ` Bob Spooner
2005-11-02 18:59                     ` Björn Persson
2005-10-27 18:43     ` Jeffrey R. Carter
2005-10-28  0:42       ` Robert A Duff
2005-10-28  5:58         ` Martin Dowie
2005-10-28 21:24         ` Jeffrey R. Carter
2005-10-28 11:53     ` David
2005-10-29 12:25       ` Simon Wright
2005-10-27 17:19 ` Martin Krischik
2005-11-07  4:21   ` Dave Thompson
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