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Re: Delete element from the structure inside another structure [message #88944 is a reply to message #88943]

Mon, 07 July 2014 01:57

Andrii
Messages: 7
Registered: March 2014

Junior Member

Hi Greg,

Thanks a lot. I will try!

Cheers,
Andrii

> Hi Andrii,
>
>
>
> I think you can't do that directly. You have two choices: either create a new structure in the shape you want, and explicitly copy over the elements you want to retain (struct_assign), or -- probably the better solution -- use a pointer in the first place, so that:
>
>
>
> a = { f1: 0, f2: { x: ptr_new(FltArr(10,10,10)), y: 0}}
>
>
>
> then you could set a.f2.x=ptr_new(FltArr(5,5,5)) and access with
>
>
>
> print,*(a.f2.x)
>
>
>
> If you want to be able to change all the values, put the pointers at the lowest level, and recreate the structures each time:
>
>
>
> a=ptrarr(2)
>
> a[0]=ptr_new(0)
>
> a[1]=ptr_new({ x: ptr_new(FltArr(10,10,10)), y: 0})
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>
>
> or
>
>
>
> a[1]=ptr_new({ x: ptr_new(FltArr(5,5,5)), y: 0})
>
>
>
> cheers,
>
> Greg

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[Message index]

		Delete element from the structure inside another structure By: Andrii on Sun, 06 July 2014 16:37
		Re: Delete element from the structure inside another structure By: greg.addr on Mon, 07 July 2014 01:50
		Re: Delete element from the structure inside another structure By: Andrii on Mon, 07 July 2014 01:57
		Re: Delete element from the structure inside another structure By: greg.addr on Mon, 07 July 2014 02:02
		Re: Delete element from the structure inside another structure By: Andrii on Mon, 07 July 2014 02:27
		Re: Delete element from the structure inside another structure By: greg.addr on Mon, 07 July 2014 02:51
		Re: Delete element from the structure inside another structure By: Andrii on Mon, 07 July 2014 02:38
		Re: Delete element from the structure inside another structure By: Fabzi on Mon, 07 July 2014 02:49

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