pub unsafe extern "C" fn rsb_mtx_add_to_dense(
    alphap: *const c_void,
    mtxAp: *const rsb_mtx_t,
    ldB: rsb_nnz_idx_t,
    nrB: rsb_nnz_idx_t,
    ncB: rsb_nnz_idx_t,
    rowmajorB: rsb_bool_t,
    Bp: *mut c_void
) -> rsb_err_t