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Re: CATCH inside a FOR loop and out? [message #88377 is a reply to message #88371]

Thu, 17 April 2014 13:27

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On 4/17/14, 11:08 AM, Chris Torrence wrote:
> On Wednesday, April 16, 2014 1:50:44 PM UTC-6, Craig Markwardt
> wrote:
>>
>> No extra keywords required to be added to the language, no nuisance
>> variables, and cleaner flow. (and no backward compatibility
>> problems) The exception handler can look at any of the crumpteen
>> million !ERR* variables to decide what went wrong.
>>
>
> Crumpteen million! I like that. We should add that as an optional
> tick label for plots.
>
> We've thought about adding a "try/catch/finally" form of error
> handling, which would be similar to what you are proposing. But I
> like your idea of somehow re-using the existing reserved words. We've
> always pushed this feature to the bottom of the list because it was
> unclear how many people would make use of it. But it certainly fits
> in with "modernizing IDL", which has been our goal since IDL 8.0.
>
> Hmmm... Maybe now is the time.
>
> -Chris ExelisVIS
>

CATCH is a routine, not a keyword currently. I, personally, don't think
it would be so bad to add a keyword or two for nice exception handling.

Also, if you add something, I think it should have an optional "finally"
clause as well.

Mike
--
Michael Galloy
www.michaelgalloy.com
Modern IDL: A Guide to IDL Programming (http://modernidl.idldev.com)
Research Mathematician
Tech-X Corporation

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[Message index]

		CATCH inside a FOR loop and out? By: cgguido on Mon, 14 April 2014 12:25
		Re: CATCH inside a FOR loop and out? By: David Fanning on Mon, 14 April 2014 12:30
		Re: CATCH inside a FOR loop and out? By: cgguido on Mon, 14 April 2014 12:30
		Re: CATCH inside a FOR loop and out? By: David Fanning on Mon, 14 April 2014 12:31
		Re: CATCH inside a FOR loop and out? By: chris_torrence@NOSPAM on Tue, 15 April 2014 12:31
		Re: CATCH inside a FOR loop and out? By: cgguido on Tue, 15 April 2014 21:23
		Re: CATCH inside a FOR loop and out? By: Craig Markwardt on Wed, 16 April 2014 12:50
		Re: CATCH inside a FOR loop and out? By: chris_torrence@NOSPAM on Thu, 17 April 2014 10:08
		Re: CATCH inside a FOR loop and out? By: Michael Galloy on Thu, 17 April 2014 13:27
		Re: CATCH inside a FOR loop and out? By: Craig Markwardt on Thu, 17 April 2014 13:56
		Re: CATCH inside a FOR loop and out? By: chris_torrence@NOSPAM on Thu, 17 April 2014 15:06

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