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Re: idl6.2 and if statemente [message #45891 is a reply to message #45890]

Sun, 09 October 2005 01:07

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Paul Selby wrote:

> Craig Markwardt wrote:
>
>> Reimar Bauer <R.Bauer@fz-juelich.de> writes:
>>
>>
>>> Dear all
>>>
>>> probably I am confused from some of the other languages I used in the
>>> last days.
>>>
>>> text is a vector of length two
>>>
>>> IF N_ELEMENTS(text) then dummy=TEMPORARY(text)
>>>
>>> does not give true till I changed it to
>>>
>>> IF N_ELEMENTS(text) gt 0 then dummy=TEMPORARY(text)
>>>
>>>
>>> Is there something changed in this behaviour I was sure the first one
>>> will work.
>>
>> Reimar,
>>
>> IDL has always defined the odd integers as true and the even integers as
>> false. Since IDL version 4 at least.
>>
>> Craig
>>
>
> Since IDL 6.0 you can force all non-zero values to be treated as true
> using
>
> compile_opt LOGICAL_PREDICATE
>
>
> Paul

Thanks

cheers
Reimar

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[Message index]

		Re: idl6.2 and if statemente By: R.Bauer on Sun, 09 October 2005 01:07
		Re: idl6.2 and if statemente By: R.Bauer on Sun, 09 October 2005 01:07
		Re: idl6.2 and if statemente By: Paul Selby on Sat, 08 October 2005 18:09
		Re: idl6.2 and if statemente By: Craig Markwardt on Sat, 08 October 2005 14:37

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