/// Find the minimal key-value entry.
Find the minimal key-value entry.
Find the minimal key - value entry .
pub fn min_entry(self) -> Option<(&'a K, &'a V)> {
        match self {
            Map(None) => None,
            Map(Some(Node(l, x, d, _r, _))) => match l {
                Map(None) => Some((x, d)),
                l => l.min_entry(),
            },
        }
    }
pub fn min_entry ( self ) -> Option < ( & ' a K , & ' a V ) > { match self { Map ( None ) => None , Map ( Some ( Node ( l , x , d , _r , _ ) ) ) => match l { Map ( None ) => Some ( ( x , d ) ) , l => l . min_entry ( ) , } , } }
Find the minimal key-value entry.
Find the minimal key - value entry .
self