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Re: Fun Writing Books [message #46713 is a reply to message #46705]

Wed, 14 December 2005 05:14

Paolo Grigis
Messages: 171
Registered: December 2003

Senior Member

Yes, the change in behaviour is documented in the IDL 5.4
"what's new", on section "Relaxed Rules for Combining Structures".

Ciao,
Paolo

Fďż˝LDY Lajos wrote:
> OK, here you are:
>
> IDL> print, !version
> { sparc sunos unix 5.3 Nov 11 1999}
> IDL>
> IDL> a = {Name:'Larry', Age:46}
> IDL> b = {Name:'JoeBob', Age:39}
> IDL> c = [a, b]
> % Conflicting data structures: B,concatenation.
> % Execution halted at: $MAIN$
> IDL>
>
> regards,
> lajos

>>>> >
>>>> >
>>>> >>I believe this wasn't restricted. Both are anonymous structures not
>>>> >>named!
>>>> >
>>>> >
>>>> >Concatenation of anonymous structures in the way David describes
>>>> >definitely used to be forbidden. Each anonymous structure has an
>>>> >internally generated identifier and IDL used to insist that these match,
>>>> >which effectively meant the only way to create an array of anonymous
>>>> >structures was replication. This restriction was removed a few versions
>>>> >back (don't recall when) and IDL now tries to do the sensible thing.
>>>> >
>>>> >
>>>>
>>>> But then it was always possible. I have used this often in the past
>>>> versions too
>>>>
>>>> Reimar
>>>>
>>>>

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[Message index]

		Re: Fun Writing Books By: Emmanuel Christophe on Wed, 14 December 2005 09:14
		Re: Fun Writing Books By: Paolo Grigis on Wed, 14 December 2005 05:14
		Re: Fun Writing Books By: Foldy Lajos on Wed, 14 December 2005 04:31
		Re: Fun Writing Books By: R.Bauer on Wed, 14 December 2005 04:21
		Re: Fun Writing Books By: Foldy Lajos on Wed, 14 December 2005 03:58
		Re: Fun Writing Books By: R.Bauer on Wed, 14 December 2005 02:33
		Re: Fun Writing Books By: David Fanning on Sun, 11 December 2005 18:04
		Re: Fun Writing Books By: Mark Hadfield on Sun, 11 December 2005 16:57
		Re: Fun Writing Books By: R.Bauer on Sun, 11 December 2005 00:07
		Re: Fun Writing Books By: m_schellens on Thu, 08 December 2005 21:27

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