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From: Preben Randhol <randhol+abuse@pvv.org>
Newsgroups: comp.lang.ada
Subject: Re: Whether to raise exception or End_of_List function
Date: Thu, 22 Nov 2001 10:23:33 +0000 (UTC)
Organization: Norwegian university of science and technology
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On Thu, 22 Nov 2001 03:53:15 -0000, Nick Roberts wrote:
> "Preben Randhol" <randhol+abuse@pvv.org> wrote in message
> news:slrn9vntpg.7nm.randhol+abuse@kiuk0156.chembio.ntnu.no...
>> ...
>> As I also read
>> that exceptions can be a monstrosity if over used.
> 
> And sometimes a piece of code can become a monstrosity (in terms of a
> proliferation of if-then-elses or whatever) if exceptions are underused.
> Indeed, sometimes the neophyte attempting to avoid using the humble 'goto'
> can end up in a similar mess.

Very true.

> When should one use exceptions? Exceptionally. The clue is in the name ;-)

Yes :-)

[snipped good example]

> Much better, eh? If more detailed diagnostics are required, one can always
> use Ada.Exceptions and provide extra information in the Message parameter
> when calling the Raise_Exception procedure.

Yes think that is smart so that it is easier to locate the problem.

Preben
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