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Re: compile a routine wich inlude a commun [message #47109 is a reply to message #47067]

Tue, 24 January 2006 13:30

Foldy Lajos
Messages: 268
Registered: October 2001

Senior Member

Hi,

and the odd thing is, that functions sometimes return these references,
not the values:

function f, arg
return, arg
end

a=1
(f(a))=2
help, a

A INT = 2

regards,
lajos

On Tue, 24 Jan 2006, JD Smith wrote:

> By the way, IDL always does pass all arguments by reference, it just
> happens that if you feed a routine a temporary variable, like a
> structure member, or array subset, that variable is freed after the
> call... so it only *seems* these are being passed by value. In fact,
> modifying such arguments modifies the temporary variable, which is of
> course, immediately deleted, and so was quite a useless operation.
>
> JD
>
>

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[Message index]

		compile a routine wich inlude a commun By: L. Testut on Sun, 22 January 2006 04:26
		Re: compile a routine wich inlude a commun By: JD Smith on Tue, 24 January 2006 14:15
		Re: compile a routine wich inlude a commun By: Foldy Lajos on Tue, 24 January 2006 13:30
		Re: compile a routine wich inlude a commun By: JD Smith on Tue, 24 January 2006 13:13
		Re: compile a routine wich inlude a commun By: JD Smith on Tue, 24 January 2006 13:05
		Re: compile a routine wich inlude a commun By: JD Smith on Tue, 24 January 2006 12:55
		Re: compile a routine wich inlude a commun By: Paul Van Delst[1] on Tue, 24 January 2006 08:58
		Re: compile a routine wich inlude a commun By: David Fanning on Tue, 24 January 2006 08:26
		Re: compile a routine wich inlude a commun By: Paul Van Delst[1] on Tue, 24 January 2006 08:13
		Re: compile a routine wich inlude a commun By: Paul Van Delst[1] on Tue, 24 January 2006 08:09
		Re: compile a routine wich inlude a commun By: peter.albert@gmx.de on Tue, 24 January 2006 08:01
		Re: compile a routine wich inlude a commun By: Paul Van Delst[1] on Tue, 24 January 2006 06:42
		Re: compile a routine wich inlude a commun By: Maarten[1] on Tue, 24 January 2006 02:04
		Re: compile a routine wich inlude a commun By: peter.albert@gmx.de on Tue, 24 January 2006 00:09
		Re: compile a routine wich inlude a commun By: David Fanning on Mon, 23 January 2006 20:03
		Re: compile a routine wich inlude a commun By: Paul Van Delst[1] on Mon, 23 January 2006 16:14
		Re: compile a routine wich inlude a commun By: David Fanning on Mon, 23 January 2006 15:16
		Re: compile a routine wich inlude a commun By: David Fanning on Mon, 23 January 2006 10:38
		Re: compile a routine wich inlude a commun By: Paul Van Delst[1] on Mon, 23 January 2006 10:25
		Re: compile a routine wich inlude a commun By: David Fanning on Mon, 23 January 2006 10:04

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