diff options
Diffstat (limited to 'library/std/src')
| -rw-r--r-- | library/std/src/collections/hash/map.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/library/std/src/collections/hash/map.rs b/library/std/src/collections/hash/map.rs index edbdd041145..15a7a770d1a 100644 --- a/library/std/src/collections/hash/map.rs +++ b/library/std/src/collections/hash/map.rs @@ -135,6 +135,8 @@ use crate::ops::Index; /// ]); /// ``` /// +/// ## `Entry` API +/// /// `HashMap` implements an [`Entry` API](#method.entry), which allows /// for complex methods of getting, setting, updating and removing keys and /// their values: @@ -167,6 +169,8 @@ use crate::ops::Index; /// player_stats.entry("mana").and_modify(|mana| *mana += 200).or_insert(100); /// ``` /// +/// ## Usage with custom key types +/// /// The easiest way to use `HashMap` with a custom key type is to derive [`Eq`] and [`Hash`]. /// We must also derive [`PartialEq`]. /// |