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!NULL in IDL 7.1 vs. 8.0 [message #79249]

Wed, 08 February 2012 13:33

TonyLanz
Messages: 4
Registered: January 2012

Junior Member

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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!NULL in IDL 7.1 vs. 8.0

By: TonyLanz on Wed, 08 February 2012 13:33

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