Enum AccuracyClass 

pub enum AccuracyClass {
    Unbounded,
    Stable,
    BoundedLoose,
    BoundedTight,
    CorrectlyRounded,
}

Discrete accuracy level — higher is better. Summarizes the guarantee’s ULP / rounding / monotonicity character into one ordered descriptor so it can sit on the cost vector as a discrete axis. Higher means tighter-rounded / more deterministic.

The ladder is intentionally coarse (a handful of rungs), matching the constitution’s “discrete accuracy levels.”

Variants

Unbounded

No static bound and not bit-stable — the weakest claim (e.g. scheduler-dependent subgroup reductions).

Stable

Bit-stable on same hardware but no static ULP bound stated.

BoundedLoose

A loose ULP bound is claimed (> 2 ULP) — vendor transcendental territory.

BoundedTight

A tight ULP bound is claimed (1–2 ULP) — IEEE-754 elementwise.

CorrectlyRounded

Correctly-rounded: ULP = 0 (the reference grade).

Implementations

impl AccuracyClass

pub fn rank(self) -> u8

Map to a small ordered integer (higher = better) for the tie-break / dominance arithmetic.

Trait Implementations

impl Clone for AccuracyClass

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AccuracyClass

impl Debug for AccuracyClass

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

Formats the value using the given formatter.

impl Eq for AccuracyClass

impl Ord for AccuracyClass

fn cmp(&self, other: &Self) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for AccuracyClass

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for AccuracyClass

fn partial_cmp(&self, other: &Self) -> 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 AccuracyClass