Enum Num 

pub enum Num {
    Bf16,
    F16,
    F32,
    E4m3,
    E2m1,
}

2026-10-02: The element precision of a value inside a kernel (registers, operands, sums).

Variants

Bf16

2026-10-02: bfloat16.

F16

2026-10-02: IEEE half.

F32

2026-10-02: float32.

E4m3

2026-10-02: FP8 E4M3 values (an FP8 activation or weight as multiplied).

E2m1

2026-10-02: FP4 E2M1 values (an NVFP4 activation or weight as multiplied).

Implementations

impl Num

pub fn name(self) -> &'static str

2026-10-02: The canonical spelling.

pub fn parse(s: &str) -> Option<Self>

2026-10-02: Parse the canonical spelling.

pub fn of_format(f: Format) -> Option<Self>

2026-10-02: The precision of a tensor format’s values: an FP8 tensor is E4M3, an NVFP4 one E2M1; None for i32, which no multiply or compute step reads as a number.

Trait Implementations

impl Clone for Num

fn clone(&self) -> Num

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Num

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

Formats the value using the given formatter.

impl Hash for Num

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 Num

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

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for Num

fn partial_cmp(&self, other: &Num) -> 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 Copy for Num

impl Eq for Num

impl StructuralPartialEq for Num