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Re: MAKE_ARRAY question

Craig Markwardt wrote:
> For KEYWORD_SET, I think "truth" is defined as non-zero.

From the IDL 5.3 documentation:
"The KEYWORD_SET function returns a nonzero value if Expression is
defined and nonzero or an array, otherwise zero is returned."

> Ooops.  What do you think this one should report?  Heh.
> 
>   print, keyword_set([0])

It should return 1, and it does:

IDL> print, keyword_set([0])
       1

Cheers,
Liam.
http://cimss.ssec.wic.edu/~gumley/