From: anon@anon.org (anon)
Subject: Re: Puzzling small piece of code - exception block essentially used as goto
Date: Tue, 05 Jun 2007 07:58:49 GMT
Date: 2007-06-05T07:58:49+00:00 [thread overview]
Message-ID: <ZI89i.107390$p47.52904@bgtnsc04-news.ops.worldnet.att.net> (raw)
In-Reply-To: vQ68i.99$UD4.49@trndny07
Looks like a HOMEWORK problem to me:
And I do not help students cheat!
In <vQ68i.99$UD4.49@trndny07>, Anonymous Coward <anonymous@coward.org> writes:
>This is an excerpt from some code I recently encountered (it may give
>some of you a headache):
>
> Still_Looping := True;
>
> Delta_Beyond_Max_Minutes:
> while Still_Looping loop
>
> Handle_Max_Minute_Error:
> begin
>
> Hour_Delta := New_Hour - Hour;
> Still_Looping := False;
> Hour := New_Hour;
>
> exception
> when Constraint_Error =>
>
> if New_Hour > Hour then
>
> Hour_Delta := Max_Hour_Delta
>
> else
>
> Hour_Delta := Relative_Time - Max_Hour_Delta;
>
> end if;
>
> Hour := Hour + Hour_Delta;
>
> end Handle_Max_Minute_Error;
> end loop Delta_Beyond_Max_Minutes;
>
>Tests show that this code actually loops a few times when run in a
>typical state. What I would like clarification on is when the
>exception block ends, where is control returned to?
>
>Also, anyone up for the challenge of rewriting this without the
>exception handler so the rest of us humans can understand what it's
>doing?
next prev parent reply other threads:[~2007-06-05 7:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-02 5:01 Puzzling small piece of code - exception block essentially used as goto Anonymous Coward
2007-06-02 5:48 ` Jeffrey R. Carter
2007-06-05 2:38 ` Anonymous Coward
2007-06-05 4:10 ` tmoran
2007-06-05 4:53 ` tmoran
2007-06-02 6:16 ` tmoran
2007-06-05 0:08 ` Adam Beneschan
2007-06-05 7:58 ` anon [this message]
2007-06-05 10:40 ` Markus E Leypold
2007-06-05 23:43 ` Anonymous Coward
2007-06-06 10:39 ` Markus E Leypold
2007-06-08 0:55 ` Anonymous Coward
2007-06-08 2:22 ` Markus E Leypold
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox