Enum Error 

pub enum Error {
    EmptyTally,
    LengthMismatch {
        expected: usize,
        got: usize,
    },
    ZeroMaxFlux {
        energy_group: usize,
    },
    EmptyPdf,
    NegativePdf {
        index: usize,
        value: f64,
    },
    NonFinitePdf {
        index: usize,
    },
    ZeroSumPdf,
    NegativeTally {
        index: usize,
        value: f64,
    },
    NonFiniteTally {
        field: &'static str,
        index: usize,
    },
}

Errors raised by variance-reduction tools.

Variants

EmptyTally

Tally carries no volume elements.

LengthMismatch

A requested array has the wrong length.

Fields

expected: usize

got: usize

ZeroMaxFlux

Every flux value feeding one energy bin is non-positive, so the MAGIC normalization value / (2 * max) would divide by zero. (Rather than silently emitting inf/nan, this is an error.)

Fields

energy_group: usize

EmptyPdf

PDF input is empty.

NegativePdf

PDF contains a negative entry.

Fields

index: usize

value: f64

NonFinitePdf

PDF contains a non-finite (NaN/infinite) entry.

Fields

index: usize

ZeroSumPdf

PDF sums to zero (or negatively); cannot normalize.

NegativeTally

Tally or user density contains a negative value.

Fields

index: usize

value: f64

NonFiniteTally

Tally array contains a non-finite (NaN/infinite) value.

Fields

field: &'static str

index: usize

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

fn eq(&self, other: &Error) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Error