Method cmp

contents/graham_scan/code/rust/graham_scan.rs:23–26

(&self, other: &Self)

// Defines an order for Points so they can be sorted
impl Ord for Point {
    fn cmp(&self, other: &Self) -> Ordering {
        // Neither field of Point will be NaN, so this is safe
        self.partial_cmp(other).unwrap()
    }
}

// Determines whether the angle abc is clockwise, counter-clockwise or colinear