Function do_sort

src/sort/merge.rs:109–119

(a: &mut [T], l: usize, u: usize, ws: &mut [T])

    }

    fn do_sort<T>(a: &mut [T], l: usize, u: usize, ws: &mut [T])
    where
        T: Ord + Copy,
    {
        if u - l > 1 {
            let mid = (u + l) / 2;
            do_sort(a, l, mid, ws);
            do_sort(a, mid, u, ws);
            merge(a, l, mid, u, ws);
        }
    }

    pub fn sort<T>(a: &mut [T])
    where