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Re: IDL 8.0 questions [message #71824 is a reply to message #71822]

Sat, 24 July 2010 16:24

penteado
Messages: 866
Registered: February 2018

Senior Member
Administrator

On Jul 24, 1:18 pm, Mike Potter <m...@orionsound.com> wrote:
> 1) I'm trying out the new "foreach" capability. The top loop, below,
> works, the bottom one does not.
>
> for i=0,nf-1 do begin
> qfile = file_names[i]
> image = readfits( qfile )
> sky,image,sky,sky_sig,/silent
> q = dialog_message( "Sky = "+string(sky)+" Sigma =
> "+string(sky_sig) ,/information )
> endfor
>
> foreach qfile, file_names do begin
> image = readfits( qfile )
> sky,image,sky_mod,sky_sig,/silent
> q = dialog_message( "Sky = "+string(sky_mod)+" Sigma =
> "+string(sky_sig) ,/information )
> endforeach
>
> After running the bottom loop, the first time readfits is called it
> crashes and the input "qfile" has been changed and either contains two
> characters equal to the final two characters of what qfile was on
> input, or it returns a short string of garbage characters.
> (file_names is a string array of filenames returned by
> dialog_pickfile).

I do not see why the second loop should not work the same as the
first. I can only suggest to check the values in file_names before
running each loop, or during the foreach loop, to make sure they are
actually the same.

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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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