Enum ExactError

#[non_exhaustive]
pub enum ExactError {
    NonFinite,
    DegenerateLine,
    NegativeRadius,
    DifferentLines,
    Undefined,
    TooDeep,
    DegenerateConic,
}

Why an exact computation was refused.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

NonFinite

An input was NaN or infinite. Exact values exist only for finite numbers.

DegenerateLine

A line’s two defining points coincide, so it has no direction.

NegativeRadius

A circle’s radius was negative.

DifferentLines

Two parameters were compared along different lines, where parameters mean different things.

Undefined

The expression has no real value in exact arithmetic (for example a square root of a negative number). A construction that validated its inputs never reports this.

TooDeep

More nested square roots than crate::tower::MAX_DEPTH: cost grows exponentially with depth, so the tower refuses rather than run unboundedly.

DegenerateConic

A conic whose quadratic part is identically zero (it is a line), or a conic pair no admissible shear could separate.

Trait Implementations

impl Clone for ExactError

fn clone(&self) -> ExactError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExactError

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

Formats the value using the given formatter.

impl PartialEq for ExactError

fn eq(&self, other: &ExactError) -> 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 Copy for ExactError

impl Eq for ExactError

impl StructuralPartialEq for ExactError