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Re: !NULL in IDL 7.1 vs. 8.0 [message #79247]

Wed, 08 February 2012 14:08

penteado
Messages: 866
Registered: February 2018

Senior Member
Administrator

!null was introduced in IDL 8.0. So, no surprises there.

On Feb 8, 7:33 pm, TonyLanz <tolan...@gmail.com> wrote:
> Hey all,
> I'm debugging some IDL code and I noticed some odd behavior with the
> system variable !NULL in IDL 7.1, curious if others had seen this....I
> suspect it's a bug and I can avoid it in IDL 8.
>
> In IDL 7.1 if I do a
>
> IDL>print,!NULL
>
> I get % Not a legal system variable: !NULL.
>
> In IDL 8 it properly returns !NULL. Have others observed this?
>
> Tony

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[Message index]

		Re: !NULL in IDL 7.1 vs. 8.0 By: penteado on Wed, 08 February 2012 14:08
		Re: !NULL in IDL 7.1 vs. 8.0 By: zhangchengxin2011 on Thu, 06 April 2017 01:39
		Re: !NULL in IDL 7.1 vs. 8.0 By: wlandsman on Thu, 06 April 2017 12:09

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