comp.lang.idl-pvwave archive: archive » Re: Multidimensional arrays and CALL

Home » Public Forums » archive » Re: Multidimensional arrays and CALL_EXTERNAL

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Multidimensional arrays and CALL_EXTERNAL [message #60830 is a reply to message #60829]

Fri, 20 June 2008 11:24

Foldy Lajos
Messages: 268
Registered: October 2001

Senior Member

On Fri, 20 Jun 2008, Dan wrote:

> Hi everyone,
>
> Now that I have gotten CALL_EXTERNAL to work correctly, I am trying to
> figure out how IDL stores multidimensional arrays in memory. Since
> CALL_EXTERNAL passes an arrays by reference (pointer to the first
> element of the array), the multidimensional arrays in C act like a 1-D
> array. I have figured out how to access elements of a 2D array
> (array(i, j) ---> array[i + i_size * j]), but haven't been able to
> figure out how to access elements from a 4D array.
>
> For example, how would I access element:
> array(i, j, k, m) from the pointer in C?
>

I have never used CALL_EXTERNAL, but my guess is:

array(i, j, k, m) ---> array[i
+ i_size * j
+ i_size * j_size * k
+ i_size * j_size * k_size * m]

regards,
lajos

Report message to a moderator

[Message index]

		Re: Multidimensional arrays and CALL_EXTERNAL By: Foldy Lajos on Fri, 20 June 2008 13:21
		Re: Multidimensional arrays and CALL_EXTERNAL By: Dan[1] on Fri, 20 June 2008 12:36
		Re: Multidimensional arrays and CALL_EXTERNAL By: Foldy Lajos on Fri, 20 June 2008 11:24
		Re: Multidimensional arrays and CALL_EXTERNAL By: Allan Whiteford on Mon, 23 June 2008 05:15

Previous Topic:	Re: Runtime crashes
Next Topic:	Java Bridge Import

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 06:45:27 PDT 2025

Total time taken to generate the page: 1.84375 seconds