Struct std::collections::hash_map::RandomState 1.7.0
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pub struct RandomState { // some fields omitted }
RandomState
is the default state for HashMap
types.
A particular instance RandomState
will create the same instances of
Hasher
, but the hashers created by two different RandomState
instances are unlikely to produce the same result for the same values.
Examples
fn main() { use std::collections::HashMap; use std::collections::hash_map::RandomState; let s = RandomState::new(); let mut map = HashMap::with_hasher(s); map.insert(1, 2); }use std::collections::HashMap; use std::collections::hash_map::RandomState; let s = RandomState::new(); let mut map = HashMap::with_hasher(s); map.insert(1, 2);
Methods
impl RandomState
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fn new() -> RandomState
Constructs a new RandomState
that is initialized with random keys.
Examples
fn main() { use std::collections::hash_map::RandomState; let s = RandomState::new(); }use std::collections::hash_map::RandomState; let s = RandomState::new();
Trait Implementations
impl Clone for RandomState
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fn clone(&self) -> RandomState
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0
Performs copy-assignment from source
. Read more
impl BuildHasher for RandomState
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type Hasher = DefaultHasher
Type of the hasher that will be created.
fn build_hasher(&self) -> DefaultHasher
Creates a new hasher. Read more
impl Default for RandomState
1.0.0[src]
fn default() -> RandomState
Returns the "default value" for a type. Read more