Problems with Unchecked programming

Problems with Unchecked programming

[Vasilios Tourloupis]

Dear Ada users,

I am having difficulties implementing Unchecked_Conversion and
Unchecked_Deallocation.  I am following the Ada 95 book to the
letter, and still I am receiving compile errors that both
Unchecked_Conversion and Unchecked_Deallocation is not visible!
Any suggestions to what I am doing wrong, would be greatly
appreciated!

Regards,

Bill Tourloupis
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+
| Vasilios E. Tourloupis             | vasilios@insect.sd.monash.edu.au |
| Dept. of Software Development      | vasilios@hestia.sd.monash.edu.au |
| Monash University,                 |                /\                |
| Caulfield East, Vic., 3145         |___________/\  /  \_______________|
| Australia                          |             \/                   | 
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+
| Disclaimer: There are some that call me Bill!  But I don't know why?  |
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+

Re: Problems with Unchecked programming

[Henri Altarac]

Do you have with clauses ?
   
   with Unchecked_Conversion;
   with Unchecked_Deallocation;



Vasilios Tourloupis <vasilios@insect.sd.monash.edu.au> wrote:
>Dear Ada users,
>
>I am having difficulties implementing Unchecked_Conversion and
>Unchecked_Deallocation.  I am following the Ada 95 book to the
>letter, and still I am receiving compile errors that both
>Unchecked_Conversion and Unchecked_Deallocation is not visible!
>Any suggestions to what I am doing wrong, would be greatly
>appreciated!
>
>Regards,
>
>Bill Tourloupis
>+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+
>| Vasilios E. Tourloupis             | vasilios@insect.sd.monash.edu.au |
>| Dept. of Software Development      | vasilios@hestia.sd.monash.edu.au |
>| Monash University,                 |                /\                |
>| Caulfield East, Vic., 3145         |___________/\  /  \_______________|
>| Australia                          |             \/                   | 
>+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+
>| Disclaimer: There are some that call me Bill!  But I don't know why?  |
>+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-+
>

Re: Problems with Unchecked programming

[Robert Dewar]

Bill says

"
I am having difficulties implementing Unchecked_Conversion and
Unchecked_Deallocation.  I am following the Ada 95 book to the
letter, and still I am receiving compile errors that both
Unchecked_Conversion and Unchecked_Deallocation is not visible!
Any suggestions to what I am doing wrong, would be greatly
appreciated!
"

No you are not following the Ada 95 book to the letter  (unless the book
is very broken). You are undoubtedly writing illegal code, and that is
what is wrong, and if you want more specific advice, then please show
some of your illegal code. I assume that the problem is that 
Unchecked_Conversion and Unchecked_Deallocation are not visible!
The solution is to make them visible. Probably you have some misconceptions
as to how Ada works, but we cannot begin to guess what these
misconceptions might be without code.

Please, EVERYONE, do not post vague questions like this, it wastes everyone's
time. We can't help you figure out what is wrong in your code, if you don't
post it.

P.S. however, please be careful everyone who might respond to a question
about how to use Ada, to remember my previous post about helping people too
much who are doing assignments in a class. In my experience, within limits
(you do not want people to get too frustrated), finding your own errors
is highly instructive. Normally students in classes should have local
resources for helping themselves out if they get too stuck. For example,
in the Ada course I am teaching now, if students can't figure out an
error message, they send ME and my TA email, they do NOT send it to CLA!