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Multidimensional arrays and CALL_EXTERNAL [message #60831]

Fri, 20 June 2008 10:50

Dan[1]
Messages: 7
Registered: June 2008

Junior Member

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?

Thank you for the help!

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Multidimensional arrays and CALL_EXTERNAL

By: Dan[1] on Fri, 20 June 2008 10:50

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