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Clarifying documentation for collections::hash_map::Entry::or_insert

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Previous version does not show that or_insert does not insert the
passed value, as the passed value was the same value as what was
already in the map.
This commit is contained in:
Meltinglava 2018-11-08 15:33:10 +01:00
parent 653da4fd00
commit b937be87cb
1 changed files with 2 additions and 2 deletions
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4
src/libstd/collections/hash/map.rs
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@ -2030,7 +2030,7 @@ impl<'a, K, V, S> RawEntryMut<'a, K, V, S> {
///
/// assert_eq!(map["poneyland"], 12);
///
/// *map.raw_entry_mut().from_key("poneyland").or_insert("poneyland", 12).1 += 10;
/// *map.raw_entry_mut().from_key("poneyland").or_insert("poneyland", 10).1 += 10;
/// assert_eq!(map["poneyland"], 22);
/// ```
#[unstable(feature = "hash_raw_entry", issue = "54043")]
@ -2652,7 +2652,7 @@ impl<'a, K, V> Entry<'a, K, V> {
///
/// assert_eq!(map["poneyland"], 12);
///
/// *map.entry("poneyland").or_insert(12) += 10;
/// *map.entry("poneyland").or_insert(10) += 10;
/// assert_eq!(map["poneyland"], 22);
/// ```
pub fn or_insert(self, default: V) -> &'a mut V {