pub mod cox_py_callback;
pub mod pyears3b;
pub mod pystep;
pub(crate) fn column_major_index(indices: &[usize], dims: &[usize]) -> usize {
let mut index = 0;
let mut stride = 1;
for (&i, &dim) in indices.iter().zip(dims.iter()) {
index += i * stride;
stride *= dim;
}
index
}