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Re: keyword_set bug or feature [message #4228 is a reply to message #4216]

Fri, 12 May 1995 00:00

llobet
Messages: 10
Registered: May 1993

Junior Member

In article <PHIL.95May12090139@peace.med.ohio-state.edu>,
phil@peace.med.ohio-state.edu (Phil) writes:

[...]
=I just can across another 'feature' and was wondering if others felt
=that it is really a 'bug' or if there is some way to over come it. It
=has to do with keywords in functions or procedures. I use several and
=check to see if the are set using
=
= IF NOT(keyowrd_set(key)) THEN BEGIN
= ;set a default value here
= ENDIF
=
=The problem comes in if the user wants to set key = 0. If so then it
=appears to the above test that the keyword is not set even though in
=the function call the user typed
=
= Result = somefunction(var,key=0)
=
=What gives? Can I just add key = key + 1 and key = key - 1 around the
=testing if statement?
=
=Any other suggestions appreciated.

You could try

IF N_ELEMENTS(key) EQ 0 THEN BEGIN

-xavier

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[Message index]

		keyword_set bug or feature By: phil on Fri, 12 May 1995 00:00
		Re: keyword_set bug or feature By: zawodny on Fri, 12 May 1995 00:00
		Re: keyword_set bug or feature By: zawodny on Fri, 12 May 1995 00:00
		Re: keyword_set bug or feature By: wmc on Fri, 12 May 1995 00:00
		Re: keyword_set bug or feature By: thompson on Fri, 12 May 1995 00:00
		Re: keyword_set bug or feature By: llobet on Fri, 12 May 1995 00:00
		Re: keyword_set bug or feature By: sterner on Fri, 12 May 1995 00:00
		Re: keyword_set bug or feature By: thompson on Tue, 16 May 1995 00:00
		Re: keyword_set bug or feature By: soc on Tue, 16 May 1995 00:00
		Re: keyword_set bug or feature By: thompson on Thu, 25 May 1995 00:00

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