Enum GradedBettiTableError 

pub enum GradedBettiTableError {
    Resolution(ResolutionError),
    MinimalityRequired,
    GradingRequired,
    DegreeRank {
        expected: usize,
        actual: usize,
    },
    HomologicalDegree {
        length: usize,
        degree: usize,
    },
    ZeroMultiplicity,
    TooManyEntries {
        limit: usize,
    },
    Noncanonical,
}

Failure to construct or derive an exact graded Betti table.

Variants

Resolution(ResolutionError)

Resolution construction or verification failed.

MinimalityRequired

Betti numbers require a verified minimal resolution.

GradingRequired

One represented free module did not carry exact shifts.

DegreeRank

One internal degree had the wrong grading rank.

Fields

expected: usize

Grading rank.

actual: usize

Supplied degree rank.

HomologicalDegree

An entry lay above the represented homological range.

Fields

length: usize

Resolution length.

degree: usize

Rejected degree.

ZeroMultiplicity

A multiplicity was zero.

TooManyEntries

A bounded table exceeded its fixed sparse-entry limit.

Fields

limit: usize

Maximum admitted nonzero entries.

Noncanonical

An in-memory table was not in canonical sparse order.

Trait Implementations

impl Clone for GradedBettiTableError

fn clone(&self) -> GradedBettiTableError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GradedBettiTableError

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

Formats the value using the given formatter.

impl Display for GradedBettiTableError

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

Formats the value using the given formatter.

impl Error for GradedBettiTableError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<GradedBettiTableError> for ModuleInvariantError

fn from(value: GradedBettiTableError) -> Self

Converts to this type from the input type.

impl From<ResolutionError> for GradedBettiTableError

fn from(value: ResolutionError) -> Self

Converts to this type from the input type.

impl PartialEq for GradedBettiTableError

fn eq(&self, other: &GradedBettiTableError) -> 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 Eq for GradedBettiTableError

impl StructuralPartialEq for GradedBettiTableError