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Re: Re: (tye)Re: GOTO considered (a necessary) evil?

by Anonymous Monk
on Jul 16, 2002 at 01:39 UTC ( #181979=note: print w/replies, xml ) Need Help??

in reply to Re: (tye)Re: GOTO considered (a necessary) evil?
in thread GOTO considered (a necessary) evil?

Linked from the previous discussion you will find Loop Exits and Structured Programming: Reopening the Debate which does a very good job of explaining why returns from the middle of subroutines and loop exits are a good thing.
  • Comment on Re: Re: (tye)Re: GOTO considered (a necessary) evil?

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Re: Re: Re: (tye)Re: GOTO considered (a necessary) evil?
by RMGir (Prior) on Jul 16, 2002 at 10:15 UTC
    You seem to have misunderstood my position...

    I wasn't saying they were bad, I was just saying I'd worked with someone who thought
    a) goto's BAD, no exceptions
    b) return from middle of subroutine == goto.

    That's NOT my position at all. I believe in _necessary_ gotos, and don't mind return/redo/last/next at all, as long as they're not used to cause chaos :)

      I didn't misunderstand. I was just not clear enough.

      I meant that to be a resource you can use in discussions with people whose understanding of structured programming is more religious than practical.

      As for goto, very few are "necessary", and experience says that so-called necessary gotos generally have a better replacement. Furthermore the ability to combine loop control and named loops removes the vast majority of goto statements - including every one that Knuth pointed to in his rebuttal as being useful for algorithmic efficiency. So while I might agree that necessary gotos are OK, I likely mean something different by that than you do.

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