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Re: IDL 8.0 questions [message #71819 is a reply to message #71818]

Sun, 25 July 2010 08:22

Mike Potter
Messages: 19
Registered: August 2008

Junior Member

On Jul 25, 7:12 am, wlandsman <wlands...@gmail.com> wrote:
> On Jul 25, 2:07 am, Mike Potter <m...@orionsound.com> wrote:
>
>> QFILE STRING = '8 unsigned int, 16 & 32 int, -32 & -64
>> A couple of things to note:
>
>> 1) the final time through the first loop filenames get corrupted
>> somehow - and the string that results is actually some of the code
>> from "readfits.pro".
>
> 1. No - there is no line in readfits.pro that reads "8 unsigned
> int....". This looks instead to me like something typically
> written in the comment field of the FITS header (for the keyword
> BITPIX).
>
> 2. It looks like the error is occurring in the FOR-ENDFOR loop --
> before the FOREACH loop is even reached! Is that right?
>
> I have no idea what is going on but if forced to choose I would say
> that this is a string descriptor problem rather than a FOREACH
> problem. In particular, I would suspect that there is an IDL 8.0
> Windows bug in the processing of empty strings. --Wayne

Wayne - as to your second point - yes, the error shows no matter where
the "FOREACH" loop is located. I tried the same code with the
"FOREACH" loop first and got essentially the same results. I say
"essentially" because the results do vary from consecutive running of
the program, even without re-compiling. And while it doesn't happen
every time it SEEMS as though the spontaneous exits of the IDLDE occur
while compiling code containing a FOREACH loop. Also note I tried a
FOREACH loop that interated through an array of integers and got
essentially the same result.

Mike

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[Message index]

		Re: IDL 8.0 questions By: David Fanning on Sun, 25 July 2010 12:33
		Re: IDL 8.0 questions By: penteado on Sun, 25 July 2010 12:11
		Re: IDL 8.0 questions By: Mike Potter on Sun, 25 July 2010 11:15
		Re: IDL 8.0 questions By: penteado on Sun, 25 July 2010 10:20
		Re: IDL 8.0 questions By: penteado on Sun, 25 July 2010 09:27
		Re: IDL 8.0 questions By: Mike Potter on Sun, 25 July 2010 08:22
		Re: IDL 8.0 questions By: Mike Potter on Sun, 25 July 2010 07:22
		Re: IDL 8.0 questions By: wlandsman on Sun, 25 July 2010 04:12
		Re: IDL 8.0 questions By: Mike Potter on Sat, 24 July 2010 23:07
		Re: IDL 8.0 questions By: penteado on Sat, 24 July 2010 16:24
		Re: IDL 8.0 questions By: Mike Potter on Sat, 24 July 2010 10:50
		Re: IDL 8.0 questions By: David Fanning on Sat, 24 July 2010 10:09
		Re: IDL 8.0 questions By: penteado on Mon, 26 July 2010 08:57

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