liboctave's NDArray conversion to float array

[Robert Brothers]

To whom it may concern,

        I am using octave’s C++ compiler/wrapper to generate arrays. I need to 
store them in a binary dat file for later access. I need to convert the NDArray 
type to a double array for storage and later use using armadillo. I am having 
trouble finding a method to convert to a double array or pointer.

What I’m looking for:

        NDArray A = args.array_value();
        
        // convert this value to a double or float array
        float a[] = A.return_NDArray_raw_data();
        
        or 
        
        double a[] = A.return_NDArray_raw_data();


Is this possible? (Not this ^^  exactly but some method that makes this 
possible) Or is there some work around that may be helpful?