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Re: Attempt to store into an expression: Structure reference [message #63276 is a reply to message #63275]

Tue, 04 November 2008 09:40

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

David Fanning schrieb:
> =?ISO-8859-2?Q?F=D6LDY_Lajos?= writes:
>
>> On Tue, 4 Nov 2008, greg.addr@googlemail.com wrote:
>>
>>> I'm doing something wrong here, but what - I'm not sure...
>>>
>>> IDL> help,s.tab
>>> <Expression> POINTER = <PtrHeapVar26>
>>>
>>> IDL> help,*(s.tab)
>>> <PtrHeapVar26> STRUCT = -> TAB Array[2]
>>>
>>> IDL> help,(*(s.tab))[0]
>>> <Expression> STRUCT = -> TAB Array[1]
>>>
>>> IDL> help,((*(s.tab))[0]).img
>>> <Expression> POINTER = <NullPointer>
>>>
>>> IDL> ((*(s.tab))[0]).img=ptr_new(image)
>>> % Attempt to store into an expression: Structure reference.
>>>
>> Seems to be an IDL bug. This works in FL:
>>
>> s={s, tab:ptr_new()}
>> tab={tab, img:ptr_new()}
>> s.tab=ptr_new(replicate(tab, 2))
>> ((*(s.tab))[0]).img=ptr_new(dist(100))
>
> This is what I had in mind:
>
> s={s, tab:ptr_new()}
> tab={tab, img:ptr_new()}
> s.tab=ptr_new(replicate(tab, 2))
> (*(s.tab))[0].img=ptr_new(dist(100))
>
> Cheers,
>
> David

I think it should be only

(*s.tab)[0].img=ptr_new(dist(100))

cheers
Reimar

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[Message index]

		Re: Attempt to store into an expression: Structure reference By: David Fanning on Tue, 04 November 2008 10:54
		Re: Attempt to store into an expression: Structure reference By: R.Bauer on Tue, 04 November 2008 09:40
		Re: Attempt to store into an expression: Structure reference By: David Fanning on Tue, 04 November 2008 09:12
		Re: Attempt to store into an expression: Structure reference By: greg.addr on Tue, 04 November 2008 08:58
		Re: Attempt to store into an expression: Structure reference By: Foldy Lajos on Tue, 04 November 2008 08:57
		Re: Attempt to store into an expression: Structure reference By: David Fanning on Tue, 04 November 2008 08:44
		Re: Attempt to store into an expression: Structure reference By: David Fanning on Tue, 04 November 2008 08:44
		Re: Attempt to store into an expression: Structure reference By: Vince Hradil on Tue, 04 November 2008 08:39
		Re: Attempt to store into an expression: Structure reference By: greg.addr on Wed, 05 November 2008 00:31

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