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
next prev parent 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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