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Rollup merge of #44794 - napen123:master, r=frewsxcv

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Add doc example to HashMap::hasher

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Mark Simulacrum 2017-09-29 17:58:56 -06:00 committed by GitHub
commit f2feb83b73
1 changed files with 11 additions and 0 deletions
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src/libstd/collections/hash/map.rs
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@ -691,6 +691,17 @@ impl<K, V, S> HashMap<K, V, S>
/// Returns a reference to the map's [`BuildHasher`].
///
/// [`BuildHasher`]: ../../std/hash/trait.BuildHasher.html
///
/// # Examples
///
/// ```
/// use std::collections::HashMap;
/// use std::collections::hash_map::RandomState;
///
/// let hasher = RandomState::new();
/// let map: HashMap<isize, isize> = HashMap::with_hasher(hasher);
/// let hasher: &RandomState = map.hasher();
/// ```
#[stable(feature = "hashmap_public_hasher", since = "1.9.0")]
pub fn hasher(&self) -> &S {
&self.hash_builder