Enum PrecisionBoundaryError 

pub enum PrecisionBoundaryError {
    NonFiniteInput {
        kind: NonFiniteKind,
    },
    OutOfDomain {
        reason: &'static str,
    },
    RoundingOverflow {
        scale: u32,
    },
}

Error returned by the precision-boundary conversion helpers.

Rich variants — never bool, never a sentinel value. Callers must decide per-variant whether to propagate, substitute a documented default, or abort the containing operation.

Variants

NonFiniteInput

An f64 → Decimal crossing received a non-finite input.

Produced by every estimator that can diverge: covariance on a zero-variance series, regression on a rank-deficient design matrix, log of a non-positive return, sqrt of a negative residual.

Fields

kind: NonFiniteKind

Which non-finite value was seen.

OutOfDomain

A conversion succeeded in representability but violated a domain constraint.

Example: a Decimal too large for f64, or an f64 whose magnitude exceeds the Decimal 96-bit mantissa range.

Fields

reason: &'static str

Static reason — chosen from a closed set so downstream log aggregators can key on it.

RoundingOverflow

Rounding to the configured scale overflowed.

Triggered when an f64 → Decimal conversion produces a value that cannot be rounded to scale decimal places without exceeding the Decimal range.

Fields

scale: u32

The scale (decimal places) that was requested.

Trait Implementations

impl Clone for PrecisionBoundaryError

fn clone(&self) -> PrecisionBoundaryError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrecisionBoundaryError

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

Formats the value using the given formatter.

impl Display for PrecisionBoundaryError

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

Formats the value using the given formatter.

impl Error for PrecisionBoundaryError

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 PrecisionBoundaryError

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

impl StructuralPartialEq for PrecisionBoundaryError