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Programming > Eiffel > Re: Modular Pro...
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Re: Modular Protection vs Assertions ...

by Ulrich Windl <Ulrich.Windl@[EMAIL PROTECTED] > Jul 31, 2007 at 08:59 AM

llothar <llothar@[EMAIL PROTECTED]
> writes:

> On 29 Jul., 15:08, Colin LeMahieu <clemah...@[EMAIL PROTECTED]
> wrote:
> > Exceptions are used to handle cases where the failure result could not
> > have been predicted beforehand.  A network communications failure
> > cannot be tested for and you can only observe its occurrence once it
> > has happened.
> 
> But a network error it is so often that you shouldn't use exceptions
> here either. Don't use exceptions as another control flow (except if
> you have serious reasons to do so).

Define "network error" not as CSMA/CD error (like a lost packet, a mangled
packet), but as a high level error, like an aborted TCP connection. Those
are
quite rare (in a sane configuration). And I think it's much preferrable to
handle an unexpected problem via an exception rather than testing for an
error
after every write to the network. (Similar for writing to files)

[...]

Ulrich




 12 Posts in Topic:
Modular Protection vs Assertions ...
bravegag <bravegag@[EM  2007-07-28 06:40:53 
Re: Modular Protection vs Assertions ...
Colin LeMahieu <clemah  2007-07-29 01:08:25 
Re: Modular Protection vs Assertions ...
llothar <llothar@[EMAI  2007-07-29 04:24:56 
Re: Modular Protection vs Assertions ...
Ulrich Windl <Ulrich.W  2007-07-31 08:59:00 
Re: Modular Protection vs Assertions ...
Ulrich Windl <Ulrich.W  2007-07-31 08:54:06 
Re: Modular Protection vs Assertions ...
llothar <llothar@[EMAI  2007-07-31 11:26:53 
Re: Modular Protection vs Assertions ...
bravegag <bravegag@[EM  2007-07-31 23:57:33 
Re: Modular Protection vs Assertions ...
bravegag <bravegag@[EM  2007-08-01 00:14:09 
Re: Modular Protection vs Assertions ...
Ulrich Windl <Ulrich.W  2007-08-02 10:47:43 
Re: Modular Protection vs Assertions ...
llothar <llothar@[EMAI  2007-08-01 01:39:38 
Re: Modular Protection vs Assertions ...
llothar <llothar@[EMAI  2007-08-01 01:42:00 
Re: Modular Protection vs Assertions ...
Colin LeMahieu <clemah  2007-08-01 07:27:23 

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tan12V112 Fri May 16 11:00:39 CDT 2008.