Struct re_log_types::hash::Hash64

pub struct Hash64(u64);

64-bit hash.

10^-12 collision risk with 6k values. 10^-9 collision risk with 190k values. 10^-6 collision risk with 6M values. 10^-3 collision risk with 200M values.

Tuple Fields

0: u64

Implementations

impl Hash64

pub const ZERO: Self = _

pub fn hash(value: impl Hash + Copy) -> Self

pub fn from_u64(i: u64) -> Self

From an existing u64. Use this only for data conversions.

pub fn hash64(&self) -> u64

Trait Implementations

impl Clone for Hash64

fn clone(&self) -> Hash64

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Hash64

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for Hash64

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Hash64

fn cmp(&self, other: &Hash64) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Hash64

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Hash64

fn partial_cmp(&self, other: &Hash64) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl SizeBytes for Hash64

fn heap_size_bytes(&self) -> u64

Returns the total size of self on the heap, in bytes.

fn total_size_bytes(&self) -> u64

Returns the total size of self in bytes, accounting for both stack and heap space.

fn stack_size_bytes(&self) -> u64

Returns the total size of self on the stack, in bytes.

fn is_pod() -> bool

Is Self just plain old data?

impl Copy for Hash64

impl Eq for Hash64

impl IsEnabled for Hash64