Enum OverlapFactor 

#[repr(u8)]
pub enum OverlapFactor {
    Simple = 0,
    Double = 64,
    Triple = 128,
    Quadruple = 192,
}

Approximate number of distinct codewords covering each byte.

Integer division of the segment stride makes coverage uneven for the overlapping factors: bytes near segment boundaries may be covered one time more, and leading bytes fewer times, than the nominal count.

Variants

Simple = 0

Each byte is covered once (plain Reed-Solomon, no overlap).

Double = 64

Each byte is covered approximately twice.

Triple = 128

Each byte is covered approximately three times.

Quadruple = 192

Each byte is covered approximately four times.

Implementations

impl OverlapFactor

pub const fn count(self) -> u8

Returns the nominal coverage count: the approximate number of codewords protecting each byte (1 to 4).

impl OverlapFactor

pub const fn from_u8(byte: u8) -> Self

Extracts the overlap factor from the high two bits of a parity byte.

The low six bits are ignored, so any byte maps to a valid factor.

impl OverlapFactor

pub const fn to_u8(self) -> u8

Returns the bit-packed representation, occupying the high two bits of the parity byte.

Trait Implementations

impl Clone for OverlapFactor

fn clone(&self) -> OverlapFactor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OverlapFactor

impl Debug for OverlapFactor

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

Formats the value using the given formatter.

impl Default for OverlapFactor

fn default() -> OverlapFactor

Returns the “default value” for a type.

impl Eq for OverlapFactor

impl From<OverlapFactor> for u8

fn from(factor: OverlapFactor) -> Self

Converts to this type from the input type.

impl From<u8> for OverlapFactor

fn from(byte: u8) -> Self

Converts to this type from the input type.

impl Hash for OverlapFactor

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 OverlapFactor

fn cmp(&self, other: &OverlapFactor) -> 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,

Restrict a value to a certain interval.

impl PartialEq for OverlapFactor

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for OverlapFactor

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl StructuralPartialEq for OverlapFactor