Enum DotReject 

pub enum DotReject {
    NoLoop,
    NoAccumulation,
    NoProduct,
    NotInt,
    NonAffineIndex,
    NotAligned,
    NotCounted,
    ExtraWork,
    NotFromZero,
}

Why a program is not a recognizable dot product — a typed refusal, never a miscompile. Ordered from the least to the most advanced, so a search reports the refusal of the loop that came closest: what a loop’s body computes ranks before whether its counter is provable, so a dot product with an unprovable counter outranks a loop that accumulates nothing.

Variants

NoLoop

No While counter is less than BOUND loop.

NoAccumulation

No Set s to s + … in the loop body.

NoProduct

The accumulated term is not item _ of A * item _ of B.

NotInt

A product, but not of two declared Seq of Int arrays — the integer dot product the app computes.

NonAffineIndex

An index is not affine in the counter.

NotAligned

The two operands are not read at one unit-stride index of the counter.

NotCounted

The counter is not set to a constant right before the loop, or is not stepped by exactly one.

ExtraWork

The loop body does more than the dot product.

NotFromZero

The accumulator is not set to zero right before the loop.

Trait Implementations

impl Clone for DotReject

fn clone(&self) -> DotReject

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DotReject

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

Formats the value using the given formatter.

impl From<ZipReject> for DotReject

fn from(z: ZipReject) -> DotReject

Converts to this type from the input type.

impl Ord for DotReject

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

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

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

impl Eq for DotReject

impl StructuralPartialEq for DotReject