Struct ahash::RandomState [−][src]
Provides a Hasher factory. This is typically used (e.g. by [HashMap
]) to create
AHashers in order to hash the keys of the map. See build_hasher
below.
Implementations
impl RandomState
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pub fn new() -> RandomState
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pub fn with_seeds(k0: u64, k1: u64) -> RandomState
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Allows for explicetly setting the seeds to used.
Trait Implementations
impl BuildHasher for RandomState
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type Hasher = AHasher
Type of the hasher that will be created.
fn build_hasher(&self) -> AHasher
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Constructs a new AHasher with keys based on compile time generated constants** and the location this object was constructed at in memory. This means that two different BuildHashers will will generate AHashers that will return different hashcodes, but Hashers created from the same BuildHasher will generate the same hashes for the same input data.
** - only if the compile-time-rng
feature is enabled.
Examples
use ahash::{AHasher, RandomState}; use std::hash::{Hasher, BuildHasher}; let build_hasher = RandomState::new(); let mut hasher_1 = build_hasher.build_hasher(); let mut hasher_2 = build_hasher.build_hasher(); hasher_1.write_u32(1234); hasher_2.write_u32(1234); assert_eq!(hasher_1.finish(), hasher_2.finish()); let other_build_hasher = RandomState::new(); let mut different_hasher = other_build_hasher.build_hasher(); different_hasher.write_u32(1234); assert_ne!(different_hasher.finish(), hasher_1.finish());
impl Clone for RandomState
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fn clone(&self) -> RandomState
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pub fn clone_from(&mut self, source: &Self)
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impl Default for RandomState
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Auto Trait Implementations
impl RefUnwindSafe for RandomState
impl Send for RandomState
impl Sync for RandomState
impl Unpin for RandomState
impl UnwindSafe for RandomState
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,