comp.lang.idl-pvwave archive: archive » Probs w/ keyword

Home » Public Forums » archive » Probs w/ keyword_set

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Probs w/ keyword_set [message #2511]

Tue, 02 August 1994 13:39

tai
Messages: 14
Registered: June 1994

Junior Member

This is probably old news, but in IDL 3.6 (and I think in 3.51), I
realized early on that you run into problems by setting a keyword
parameter to 0 and running it through keyword_set. I.e. keyword_set
believes the parameter is unset:

pro test, Key = Key
if (keyword_set(Key)) then print, 'Set' $
else print, 'Unset'
end
test, Key = 0

Solution: use n_elements instead of keyword_set. I found this out
from reading through some procedures from the JHUAPL library.

Alan

Report message to a moderator

[Message index]

Probs w/ keyword_set

By: tai on Tue, 02 August 1994 13:39

Previous Topic:	Re: convert 4 bytes into a long
Next Topic:	Reading binary data from cdrom using new PV-wave(v4.2)

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 09:19:32 PDT 2025

Total time taken to generate the page: 0.15453 seconds