TreeMap::clear

pub fn clear()

use collections::tree::{TreeMap};

Removes every entry.

Called on a TreeMap value as value.clear(…).

Contracts#

Checked according to --contracts (see Contracts).

ensures self.len == 0

See also#

• TreeMap: An ordered map from keys of type K to values of type V.
• TreeMap::new: Creates an empty map.
• TreeMap::empty: Creates an empty map; the same as TreeMap::new.
• TreeMap::size: Returns the number of entries.
• TreeMap::is_empty: Returns true when the map has no entries.
• TreeMap::iter: Returns an iterator over the entries in ascending key order.
• TreeMap::insert: Stores v under k, replacing any value already there.
• TreeMap::contains: Returns true when the map has an entry for k.