[Swig-user] Armadillo typemaps simplification?

[Marco A. V. G. <mar...@uc...>]

Hi guys,

This is not a question about details but a 'more general' consideration.
I have a C++ shared library (mylib.so) that I want to interface with 
several languages (Python, R, Octave/Matlab, Ruby, Java... ).
The library uses Armadillo for matrix algebra, and its functions receive 
and return arma::mat objects.

arma::mat myfunc (arma::mat arg1);

Looking for an easy way of interfacing with many languages at once, I am 
considering to add a 'facade' to avoid armadillo types, in this way:

void myfunc_facade (double* IN_array,    int  rows,     int cols,
double* OUT_array, int* OUT_rows, int* OUT_cols){

     // BUILD THE ARMA::MAT OBJECT*****************************
     arma::mat in_mat = build_mat(IN_array, rows, cols);

     // CALL THE ORIGINAL FUNCTION*****************************
     arma::mat out_mat = myfunc(in_mat);

     // RETURNTHE DATA****************************************
     OUT_array = out_mat.memptr();
     *OUT_cols= out_mat.n_cols;
     *OUT_rows = out_mat.n_rows;

return;
}

Does it make sense to you?

Thank you very much!
Marco Villegas