To throw or to throw not?
Steve Holden
steve at holdenweb.com
Thu Nov 13 20:41:04 EST 2008
Emanuele D'Arrigo wrote:
> I'm pondering on what is a bit of a philosophical dilemma.
> When should I throw an exception and when should I not?
>
> Suppose I have myFunc1() calling myFunc2() which in turn calls myFunc3
> ().
> Suppose myFunc3() has detected a problem. What should it do?
>
> Throw an exception, forcing myFunc2() to handle it and/or trigger
> another exception for myFunc1() to deal with? Or should it simply
> return a meaningful error code, for myFunc2() and myFunc1() to handle
> as an option but not forcing them to do so?
>
Remember that with exceptions, if Func2 doesn't want to process the
exception it doesn't have to do anything at all to have the exception
re-raised: it simply doesn't trap the exception.
regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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