Struct ahash::AHasher [−][src]
pub struct AHasher { /* fields omitted */ }
A Hasher
for hashing an arbitrary stream of bytes.
Instances of AHasher
represent state that is updated while hashing data.
Each method updates the internal state based on the new data provided. Once
all of the data has been provided, the resulting hash can be obtained by calling
finish()
Clone is also provided in case you wish to calculate hashes for two different items that start with the same data.
Implementations
impl AHasher
[src]
impl AHasher
[src]pub fn new_with_keys(key1: u128, key2: u128) -> AHasher
[src]
Creates a new hasher keyed to the provided key.
Trait Implementations
impl Clone for AHasher
[src]
impl Clone for AHasher
[src]fn clone(&self) -> AHasher
[src]
pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Default for AHasher
[src]
impl Default for AHasher
[src]Provides a default Hasher compile time generated constants for keys. This is typically used in conjunction with BuildHasherDefault to create AHashers in order to hash the keys of the map.
Generally it is preferable to use RandomState instead, so that different hashmaps will have different keys. However if fixed keys are desireable this may be used instead.
Example
use std::hash::BuildHasherDefault; use ahash::{AHasher, RandomState}; use std::collections::HashMap; let mut map: HashMap<i32, i32, BuildHasherDefault<AHasher>> = HashMap::default(); map.insert(12, 34);
fn default() -> AHasher
[src]
Constructs a new AHasher with compile time generated constants for keys if the
compile-time-rng
feature is enabled. Otherwise the keys will be fixed constants.
This means the keys will be the same from one instance to another,
but different from build to the next. So if it is possible for a potential
attacker to have access to the compiled binary it would be better
to specify keys generated at runtime.
Examples
use ahash::AHasher; use std::hash::Hasher; let mut hasher_1 = AHasher::default(); let mut hasher_2 = AHasher::default(); hasher_1.write_u32(1234); hasher_2.write_u32(1234); assert_eq!(hasher_1.finish(), hasher_2.finish());
impl Hasher for AHasher
[src]
impl Hasher for AHasher
[src]Provides methods to hash all of the primitive types.