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From: "SteveD" <nospam_steved94@attbi.com>
Newsgroups: comp.lang.ada
References: <NfPP8.30076$9b.3149846@typhoon.austin.rr.com>
Subject: Re: Linked List in ada
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"kaak" <the_kaak@hotmail.com> wrote in message
news:NfPP8.30076$9b.3149846@typhoon.austin.rr.com...
> I'm curious about linked lists and pointers in ada. I'm not sure exactly
how
> they work.
>
> This is the code i have so far:
>
> procedure insertRear(header:in out ptr; x: integer) is
>
>         p: ptr;
>         q: ptr;
> BEGIN
>         p = new node;
>         p.key = x;
>         q = header;
>
>         loop:
>                 exit when q.next = null;
>                 if q.next then
>                         q = q.next;
>                 else
>                         exit;
>                 end if;
>         end loop;
>
>         q.next = p
>
> I don't think the syntax is right with the pointers. and ideas?
>
Here are a few hints:
  In Ada assignment is done with the ":=" operator not "=".
  The only value permitted as the condition of an if statement is an
expression that evaluates to a boolean.
  Labels end with a colon, the beginning of a loop does not.
  If you try compiling the program, most compilers will direct you to these
simple errors.
  If your program is small, go ahead and post a working example, you'll
generally get a better response that way.  If your program is large, try
creating a small version that reproduces just the part you have in question.

SteveD