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{BTree,Hash}Map: add "Entry API" section heading #145162

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Merged
merged 2 commits into from
Aug 10, 2025
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{BTree,Hash}Map: add "Entry API" section heading #145162

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c0a3e48
`{BTree,Hash}Map`: add "`Entry` API" section heading
ada4a Aug 9, 2025
06e4365
`HashMap`: also add "Usage with custom key types" heading
ada4a Aug 9, 2025
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2 changes: 2 additions & 0 deletions library/alloc/src/collections/btree/map.rs
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Expand Up @@ -135,6 +135,8 @@ pub(super) const MIN_LEN: usize = node::MIN_LEN_AFTER_SPLIT;
/// ]);
/// ```
///
/// ## `Entry` API
///
/// `BTreeMap` implements an [`Entry API`], which allows for complex
/// methods of getting, setting, updating and removing keys and their values:
///
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4 changes: 4 additions & 0 deletions library/std/src/collections/hash/map.rs
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Expand Up @@ -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:
Expand Down Expand Up @@ -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`].
///
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