Accessing Pointer to NDarray/Matrix data in C oct-file

[cjbattagl]

Hi,
I am using the octave interface to write functions that allocate octave
structures (NDarray/Matrix) onto a GPU for linear algebra operations. I
would like the memory allocation to be as fast as possible--

In Octave 3.0 I was able to directly access the data directly using
rep->data:

Matrix A = args(0).matrix_value();
double* a_data = A.rep->data;

so it was easy to copy memory to the GPU by passing the pointer to the
memory call. However, the code no longer compiles under Octave 3.2 because
'rep' is now protected. I definitely understand the reasoning behind this,
but for higher performance I would like access the data directly.

What is the best way to access the memory directly without having to
duplicate the Octave array in C?
I would appreciate your advice!

Thanks,
Casey
-- 
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