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Default values for keywords [message #90780]

Wed, 15 April 2015 11:21

Gordon Farquharson
Messages: 48
Registered: December 2010

Member

I have been a long time IDL user, but it has only just occurred to me to ask whether there is a more elegant way to set default values for keyword parameters than

if n_elements(foo) then foo = !pi

I suspect there isn't, but this makes the start of most IDL routines very cluttered. It would be cool if there was a way to set the default value, like in C++ constructor calls. Maybe something like,

pro bar, AKP=akp

DEFAULT_BLOCK
apk = 1.0
END_DEFAULT_BLOCK

...

END

I'm sure somebody could come up with a more elegant syntax.

Just a thought.

Gordon

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[Message index]

		Default values for keywords By: Gordon Farquharson on Wed, 15 April 2015 11:21
		Re: Default values for keywords By: David Fanning on Wed, 15 April 2015 11:30
		Re: Default values for keywords By: Gordon Farquharson on Wed, 15 April 2015 11:36

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