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Re: Error Handling Advice [message #82706 is a reply to message #82703]

Mon, 14 January 2013 12:02

Matthew Argall
Messages: 286
Registered: October 2011

Senior Member

> I guess I will start with some with trial and ::ehem:: error ;-)

So, after a little work, I get a cascade of error messages

----------------------------
function add, a, b
Catch, theError
IF theError NE 0 THEN BEGIN
Catch, /CANCEL
void = Error_Message()
RETURN, !Null
ENDIF

RETURN, a + b
end

pro call_add
Catch, theError
IF theError NE 0 THEN BEGIN
Catch, /CANCEL
void = Error_Message()
RETURN
ENDIF

sum = add(a, b)

IF sum EQ !Null THEN message, 'Sum not valid'
END
--------------------------------

Should there be a STOP in there somewhere?

Is this were "add" would require an ON_ERROR, 2? I can imagine some cases where you would want to keep both CATCH statements...

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[Message index]

		Re: Error Handling Advice By: Paul Van Delst[1] on Mon, 14 January 2013 14:21
		Re: Error Handling Advice By: David Fanning on Mon, 14 January 2013 13:47
		Re: Error Handling Advice By: Matthew Argall on Mon, 14 January 2013 13:33
		Re: Error Handling Advice By: David Fanning on Mon, 14 January 2013 13:02
		Re: Error Handling Advice By: David Fanning on Mon, 14 January 2013 12:58
		Re: Error Handling Advice By: Matthew Argall on Mon, 14 January 2013 12:02
		Re: Error Handling Advice By: David Fanning on Mon, 14 January 2013 10:44
		Re: Error Handling Advice By: Matthew Argall on Mon, 14 January 2013 10:30
		Re: Error Handling Advice By: David Fanning on Mon, 14 January 2013 09:05
		Re: Error Handling Advice By: Paul Van Delst[1] on Mon, 14 January 2013 08:51
		Re: Error Handling Advice By: Paul Van Delst[1] on Mon, 14 January 2013 08:45
		Re: Error Handling Advice By: David Fanning on Mon, 14 January 2013 07:05
		Re: Error Handling Advice By: John Correira on Mon, 14 January 2013 06:51
		Re: Error Handling Advice By: David Fanning on Fri, 11 January 2013 19:08
		Re: Error Handling Advice By: Matthew Argall on Fri, 11 January 2013 18:36
		Re: Error Handling Advice By: David Fanning on Fri, 11 January 2013 16:15
		Re: Error Handling Advice By: Matthew Argall on Fri, 11 January 2013 16:03
		Re: Error Handling Advice By: David Fanning on Fri, 11 January 2013 15:17
		Re: Error Handling Advice By: Jeremy Bailin on Fri, 11 January 2013 14:58
		Re: Error Handling Advice By: David Fanning on Fri, 11 January 2013 14:51

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