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Re: Use of STOP inside an IF statement [message #60880 is a reply to message #60877]

Tue, 17 June 2008 11:16

Chris[5]
Messages: 16
Registered: May 2008

Junior Member

On Jun 17, 7:46 am, Benjamin.R.Ev...@gmail.com wrote:
> I currently have:
>
> spawn, 'mkdir '+output_dir, message
> IF ( string(message) ) then begin
> print, message
> stop
> ENDIF
>
> But the stop command will not work inside the IF statment but it will
> work
> outside the IF statment. I need it to be inside the IF statement so
> that the program
> stops if a message is printed out.
>
> Any help would be appreciated.
>
> Ben

The code looks fine. Have you considered the fact that the if
statement isn't true? For example, on my linux machine at least, if I
call mkdir through spawn and attempt to create an illegal directory
(one that already exists, for example), I get an error message printed
directly to the terminal, but not returned to the message variable. In
this case, your if loop fails to fire. The error message WOULD be
displayed to the screen but, if this if statement is embedded in some
sort of computationally intensive region of code, there tends to be a
lag between when messages are sent to the the terminal and when they
show up, leading you to think that it's not printing at all.

chris

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[Message index]

		Re: Use of STOP inside an IF statement By: Jeremy Bailin on Wed, 18 June 2008 11:19
		Re: Use of STOP inside an IF statement By: Brian Larsen on Tue, 17 June 2008 14:56
		Re: Use of STOP inside an IF statement By: Chris[5] on Tue, 17 June 2008 11:16
		Re: Use of STOP inside an IF statement By: Brian Larsen on Tue, 17 June 2008 11:01
		Re: Use of STOP inside an IF statement By: David Fanning on Tue, 17 June 2008 10:54

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