From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00,SUBJ_ALL_CAPS
	autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,51359402da60c472
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2003-06-18 04:14:01 PST
Path: 
 archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!proxad.net!newsfeed.stueberl.de!newsr1.ipcore.viaginterkom.de!btnet-peer1!btnet-peer0!btnet-feed5!btnet!news.btopenworld.com!not-for-mail
From: john@nospam.demon.co.uk (John McCabe)
Newsgroups: comp.lang.ada
Subject: Re: DYNAMIC ADA TASK CREATION?
Date: Wed, 18 Jun 2003 11:13:37 +0000 (UTC)
Organization: BT Openworld
Message-ID: <3ef04842.436197@news.btclick.com>
References: <bcnrkj$m16$1@atlantis.news.tpi.pl>
 <x7vadcgwiyo.fsf@smaug.pushface.org> <3EF0026E.2050309@attbi.com>
 <bcpas1$esp$1@a1-hrz.uni-duisburg.de>
NNTP-Posting-Host: host217-37-177-69.in-addr.btopenworld.com
X-Trace: hercules.btinternet.com 1055934817 4596 217.37.177.69 (18 Jun 2003
 11:13:37 GMT)
X-Complaints-To: news-complaints@lists.btinternet.com
NNTP-Posting-Date: Wed, 18 Jun 2003 11:13:37 +0000 (UTC)
X-Newsreader: Forte Free Agent 1.21/32.243
Xref: archiver1.google.com comp.lang.ada:39384
Date: 2003-06-18T11:13:37+00:00
List-Id: <comp.lang.ada>

On Wed, 18 Jun 2003 09:20:01 +0000 (UTC), Georg Bauhaus
<sb463ba@d2-hrz.uni-duisburg.de> wrote:


>: Correct.  But if you don't want to get stuck there, do this instead:
>: 
>:     -- task type t as above
>:     type ta is access t;
>: 
>:     type ts is array (positive range <>) of ta := new t;
>                                                 ^^^^^^^^  
>I think I got the idea and made me program to see the tasks working
>outside the declare block. A good hint!
>But is new t on the line above some new default initialisation
>construct, or meant to abbreviate something? (The compiler complains.)
: 
:     declare
:       the_ts : ts (1 .. n);
:     begin
:       --  do something with the tasks
:       --  NB, CAN pass this once all the tasks have been created.
:     end;
: 

I'm not surprised, you're trying to initialise a type!! Simon did say
he hadn't compiled this though!

You need to remove the ' := new t' at the end, then actually create
the tasks something like:

-- task type t as above
type ta is access t;

type ts is array (positive range <>) of ta;

declare
   the_ts : ts (1 .. n);
begin
   for Index in 1 .. n loop
      the_ts(n) := new t;
   end loop;

   --  do something with the tasks
   --  NB, CAN pass this once all the tasks have been created.
end;

Just a vague thought....does..

declare
   the_ts : ts (1 .. n) = (others => new t);
begin
....

compile?


Best Regards
John McCabe

To reply by email replace 'nospam' with 'assen'