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Addressed @BurntSuchi's remarks regarding Entry::replace

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This commit is contained in:
Jeroen Bollen 2017-09-12 15:32:10 +02:00
parent a312b47698
commit d3de465dc8
1 changed files with 3 additions and 4 deletions
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7
src/libstd/collections/hash/map.rs
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@ -2167,21 +2167,20 @@ impl<'a, K, V> OccupiedEntry<'a, K, V> {
/// # Examples
///
/// ```
/// # #![feature(map_entry_replace)]
/// #![feature(map_entry_replace)]
/// use std::collections::HashMap;
/// use std::collections::hash_map::Entry;
///
/// let mut map: HashMap<String, u32> = HashMap::new();
/// map.insert(String::from("poneyland"), 15);
/// map.insert("poneyland".to_string(), 15);
///
/// if let Entry::Occupied(entry) = map.entry(String::from("poneyland")) {
/// if let Entry::Occupied(entry) = map.entry("poneyland".to_string()) {
/// let (old_key, old_value): (String, u32) = entry.replace(16);
/// assert_eq!(old_key, "poneyland");
/// assert_eq!(old_value, 15);
/// }
///
/// assert_eq!(map.get("poneyland"), Some(&16));
///
/// ```
#[unstable(feature = "map_entry_replace", issue = "44286")]
pub fn replace(mut self, value: V) -> (K, V) {