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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: a07f3367d7,5cc10500d0b7a280
X-Google-Attributes: gida07f3367d7,public,usenet
X-Google-NewGroupId: yes
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news2.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsfeed.velia.net!weretis.net!feeder2.news.weretis.net!news.tornevall.net!not-for-mail
From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: task model
Date: Sat, 17 Oct 2009 10:34:12 -0700
Organization: TornevallNET - http://news.tornevall.net
Message-ID: <hbcugm$nv8$1@news.tornevall.net>
References: 
 <04458a0b-1e58-478b-a2f0-c47226f840ac@f16g2000yqm.googlegroups.com>
 <c086cde9-96bf-47be-b56f-3793255788f2@a21g2000yqc.googlegroups.com>
 <6b6bd661-06b0-4ef6-8d48-0ef97d55fdd4@f20g2000prn.googlegroups.com>
 <nahsigbubftd.6s9bknzww2a4$.dlg@40tude.net>
 <m2d44na0xd.fsf@hal.futureapps.de> <hbaj1q$m4l$1@news.tornevall.net>
 <m2hbty8eer.fsf@hal.futureapps.de>
NNTP-Posting-Host: deb6f93519e1b99ba79c4690e6d34e56
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: b417b73f392fff07595c68a8c5439761
X-Complaints-To: abuse@tornevall.net
X-Complaints-Language: Spoken language is english or swedish - NOT ITALIAN,
 FRENCH, GERMAN OR ANY OTHER LANGUAGE!
In-Reply-To: <m2hbty8eer.fsf@hal.futureapps.de>
X-Validate-Post: 
 http://news.tornevall.net/validate.php?trace=b417b73f392fff07595c68a8c5439761
X-SpeedUI: 1738
X-Complaints-Italiano: Parlo la lingua non � italiano
User-Agent: Thunderbird 2.0.0.23 (Windows/20090812)
X-Posting-User: 9b22bfe2855937f9b3faeec7cfc91295
Xref: g2news2.google.com comp.lang.ada:8716
Date: 2009-10-17T10:34:12-07:00
List-Id: <comp.lang.ada>

Georg Bauhaus wrote:
>>
>> What's the point of re-raising? Exceptions don't propagate from tasks.
> 
> Uhm, I forgot to mention that a handler at some nesting level
> might be reporting, permitting more accurate diagnostic messages.
> It could then decide there is or is not a possible rescue,
> and accordingly re-raise, for example.

Not an exception handler for the task, then, but for a declare statement within 
the task. In that case, a re-raise might be useful.

However, the primary use I have had for such a structure is to enclose an accept 
statement, allowing an explicitly raised exception to propagate from the accept 
to the caller, while being handled and ignored in the called task.

-- 
Jeff Carter
"You've got the brain of a four-year-old boy,
and I bet he was glad to get rid of it."
Horse Feathers
47