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Re: Defining constants in IDL? [message #31315 is a reply to message #31314]

Fri, 21 June 2002 19:31

mperrin+news
Messages: 81
Registered: May 2001

Member

Dominic Zarro <dzarro@yahoo.com> wrote:
> IDL is very forgiving. Just define a constant to be any name and set its
> value. For example,
>
> IDL> a = 100
>
> Just be careful not to redefine and, hence, overwrite the variable 'a'.

The problem with this approach is that it is only visible within one
particular file. There's no mechanism akin to C's header files for
getting a constant into multiple source files, something I frequently find
myself missing. You can work around this using common blocks, but that's
has its own problems. Perhaps the best solution is user-defined system
variables but even that seems rather kludgy.

- Marshall

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[Message index]

		Re: Defining constants in IDL? By: thompson on Thu, 27 June 2002 15:51
		Re: Defining constants in IDL? By: jeyadev on Tue, 25 June 2002 10:37
		Re: Defining constants in IDL? By: R.Bauer on Mon, 24 June 2002 06:43
		Re: Defining constants in IDL? By: Robert Stockwell on Mon, 24 June 2002 06:04
		Re: Defining constants in IDL? By: ronn on Sat, 22 June 2002 09:55
		Re: Defining constants in IDL? By: mperrin+news on Fri, 21 June 2002 19:31
		Re: Defining constants in IDL? By: Dominic Zarro on Fri, 21 June 2002 19:18
		Re: Defining constants in IDL? By: jeyadev on Fri, 28 June 2002 15:51

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