Struct Bool 

#[repr(transparent)]
pub struct Bool(pub u8);

Boolean element marker. #[repr(transparent)] wrapper around u8 (1-byte storage).

Truthiness convention follows PyTorch / NumPy: 0 is false; any non-zero byte is true. Kernels that consume Bool operands normalize the input to 0 or 1 before applying the logical op so the result is always strictly 0 or 1. The wrapper is #[repr(transparent)] over u8, so a DeviceBuffer<u8> (byte substrate) can be reinterpreted as a DeviceBuffer<Bool> via view_as without copying.

Used as the element type of comparison-op output tensors (eq, gt, …) and as the input element type for the logical-op family (logical_and, logical_or, logical_xor). Implements Element so the same BinaryPlan<T, N> / UnaryPlan<T, N> shapes extend to boolean tensors.

Tuple Fields

0: u8

Implementations

impl Bool

pub const fn new(b: bool) -> Bool

Build a Bool from a Rust bool. true becomes 1, false becomes 0.

pub const fn to_bool(self) -> bool

Convert to a Rust bool using the PyTorch convention: any non-zero byte is true.

Trait Implementations

impl Clone for Bool

fn clone(&self) -> Bool

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Bool

impl Debug for Bool

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

Formats the value using the given formatter.

impl Default for Bool

fn default() -> Bool

Returns the “default value” for a type.

impl DeviceRepr for Bool

impl Element for Bool

Boolean as an elementwise kernel input element. Used by the logical op family (logical_and / logical_or / logical_xor) and as the output type of comparison ops. Storage is 1 byte per element via the Bool wrapper.

The Scalar projection is f32 (nominal).

type Scalar = f32

Scalar type used for the kernel’s alpha / beta parameters (and the epilogue compute type). f32 for f16/bf16/f32/F32Strict — the epilogue runs at f32 to match the F32 accumulator. f64 for f64 — the DGEMM path uses an F64 accumulator and f64 alpha/beta. For integer / Bool elements the projection is nominally f32 (no α/β-scaled epilogue applies).

impl Eq for Bool

impl Hash for Bool

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

where __H: Hasher,

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 KernelDtype for Bool

const KIND: ElementKind = ElementKind::Bool

Runtime tag for this dtype. Stable across the workspace — keyed by this same enum in crate::KernelSku::element.

impl Ord for Bool

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

fn eq(&self, other: &Bool) -> 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 Bool

fn partial_cmp(&self, other: &Bool) -> 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 Bool