Enum CalcError 

pub enum CalcError {
    DivisionByZero,
    Overflow,
    ParseError(String),
    EmptyExpression,
    InvalidResult(String),
    AnomalyViolation(AnomalyViolation),
}

Calculator error types - exhaustive enum ensures all cases handled

Variants

DivisionByZero

Division by zero attempted

Overflow

Result overflowed (infinity)

ParseError(String)

Invalid expression syntax

EmptyExpression

Empty expression provided

InvalidResult(String)

Invalid result (NaN or other)

AnomalyViolation(AnomalyViolation)

Anomaly violation detected

Trait Implementations

impl Clone for CalcError

fn clone(&self) -> CalcError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CalcError

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

Formats the value using the given formatter.

impl Display for CalcError

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

Formats the value using the given formatter.

impl Error for CalcError

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 PartialEq for CalcError

fn eq(&self, other: &CalcError) -> 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 StructuralPartialEq for CalcError