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strange "eq" behaviour [message #69770]

Mon, 15 February 2010 07:27

rogass
Messages: 200
Registered: April 2008

Senior Member

Hi folks,
sometimes it's hard to understand IDL interprets, e.g.:

IDL> print,maxx
1.00000
IDL> help,maxx
MAXX FLOAT = 1.00000
IDL> if maxx eq 1. then print, 'true' else print,'wrong'
wrong
IDL> if maxx eq 1 then print, 'true' else print,'wrong'
wrong
IDL> if maxx eq float(1) then print, 'true' else print,'wrong'
wrong
IDL> if maxx eq maxx then print, 'true' else print,'wrong'
true
IDL> if maxx[0] eq 1 then print, 'true' else print,'wrong'
wrong
IDL> if maxx[0] eq 1. then print, 'true' else print,'wrong'
wrong
IDL> if 5 eq 5. then print, 'true' else print,'wrong'
true

What's going wrong here? Has somebody an idea? Is this a bug or a
feature ;)
I use IDL 6.4.1 within Windows 7 x64 Pro

Thanks and regards

Chris

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[Message index]

		strange "eq" behaviour By: rogass on Mon, 15 February 2010 07:27
		Re: strange "eq" behaviour By: rogass on Mon, 15 February 2010 09:21
		Re: strange "eq" behaviour By: Spon on Mon, 15 February 2010 08:18

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