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computers / comp.os.vms / Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?

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* Limit on number of RETURN commands left hanging via CTRL/Y abort?alanfe...@gmail.com
`* Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?Chris Townley
 `* Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?alanfe...@gmail.com
  `* Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?bill
   `- Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?alanfe...@gmail.com

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Limit on number of RETURN commands left hanging via CTRL/Y abort?

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Subject: Limit on number of RETURN commands left hanging via CTRL/Y abort?
From: alanfeld...@gmail.com (alanfe...@gmail.com)
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 by: alanfe...@gmail.com - Fri, 5 May 2023 14:34 UTC

Greetings,

I have a DCL command procedure that uses GOSUB subroutines. Now what if you exit one or more of them via CTRL/Y? Is it a problem to have too many RETURNs left hanging like that? TIA!

Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?

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From: new...@cct-net.co.uk (Chris Townley)
Newsgroups: comp.os.vms
Subject: Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?
Date: Fri, 5 May 2023 16:28:40 +0100
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 by: Chris Townley - Fri, 5 May 2023 15:28 UTC

On 05/05/2023 15:34, alanfe...@gmail.com wrote:
> Greetings,
>
> I have a DCL command procedure that uses GOSUB subroutines. Now what if you exit one or more of them via CTRL/Y? Is it a problem to have too many RETURNs left hanging like that? TIA!

Trap them with ON... within the subroutine, then return perhaps with a flag

--
Chris

Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?

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Subject: Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?
From: alanfeld...@gmail.com (alanfe...@gmail.com)
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 by: alanfe...@gmail.com - Fri, 5 May 2023 20:39 UTC

On Friday, May 5, 2023 at 11:28:45 AM UTC-4, Chris Townley wrote:
> On 05/05/2023 15:34, alanfe...@gmail.com wrote:
> > Greetings,
> >
> > I have a DCL command procedure that uses GOSUB subroutines. Now what if you exit one or more of them via CTRL/Y? Is it a problem to have too many RETURNs left hanging like that? TIA!
> Trap them with ON... within the subroutine, then return perhaps with a flag
>
>
> --
> Chris

Well, after working some more on the DCL command procedure, it seems to me that it's harmless to leave RETURN's hanging. Never mind.

Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?

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From: bill.gun...@gmail.com (bill)
Newsgroups: comp.os.vms
Subject: Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?
Date: Fri, 5 May 2023 16:57:54 -0400
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 by: bill - Fri, 5 May 2023 20:57 UTC

On 5/5/2023 4:39 PM, alanfe...@gmail.com wrote:
> On Friday, May 5, 2023 at 11:28:45 AM UTC-4, Chris Townley wrote:
>> On 05/05/2023 15:34, alanfe...@gmail.com wrote:
>>> Greetings,
>>>
>>> I have a DCL command procedure that uses GOSUB subroutines. Now what if you exit one or more of them via CTRL/Y? Is it a problem to have too many RETURNs left hanging like that? TIA!
>> Trap them with ON... within the subroutine, then return perhaps with a flag
>>
>>
>> --
>> Chris
>
> Well, after working some more on the DCL command procedure, it seems to me that it's harmless to leave RETURN's hanging. Never mind.

I wouldn't say harmless. You just didn't overflow the stack yet. :-)

bill

Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?

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Subject: Re: Limit on number of RETURN commands left hanging via CTRL/Y abort?
From: alanfeld...@gmail.com (alanfe...@gmail.com)
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 by: alanfe...@gmail.com - Sat, 6 May 2023 06:12 UTC

On Friday, May 5, 2023 at 4:58:00 PM UTC-4, bill wrote:
> On 5/5/2023 4:39 PM, alanfe...@gmail.com wrote:
> > On Friday, May 5, 2023 at 11:28:45 AM UTC-4, Chris Townley wrote:
> >> On 05/05/2023 15:34, alanfe...@gmail.com wrote:
> >>> Greetings,
> >>>
> >>> I have a DCL command procedure that uses GOSUB subroutines. Now what if you exit one or more of them via CTRL/Y? Is it a problem to have too many RETURNs left hanging like that? TIA!
> >> Trap them with ON... within the subroutine, then return perhaps with a flag
> >>
> >>
> >> --
> >> Chris
> >
> > Well, after working some more on the DCL command procedure, it seems to me that it's harmless to leave RETURN's hanging. Never mind.
> I wouldn't say harmless. You just didn't overflow the stack yet. :-)
>
> bill

Yes, I do recall reading recently somewhere that you can run out of space for symbols and labels and the like. But RETURN's seem to just be unattached to anything.

OK.

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