Enum CurveError 

pub enum CurveError {
    TooFewNodes {
        found: usize,
    },
    NodesNotIncreasing {
        at_index: usize,
    },
    NonPositiveDiscount {
        at_index: usize,
        value: f64,
    },
    AnchorNotUnit,
    InvalidTime {
        t: f64,
    },
    Type(TypeError),
    DuplicateNode {
        t: f64,
    },
}

Error returned when constructing or evaluating a discount curve.

Examples

use regit_curves::errors::CurveError;

let err = CurveError::TooFewNodes { found: 1 };
assert_eq!(
    format!("{err}"),
    "curve needs at least two nodes, found 1",
);

Variants

TooFewNodes

Fewer than two nodes were supplied.

Fields

found: usize

Number of nodes that were supplied.

NodesNotIncreasing

Node times are not strictly increasing.

Fields

at_index: usize

Index of the first node that breaks the invariant.

NonPositiveDiscount

A discount factor at a node was not strictly positive.

Fields

at_index: usize

Index of the offending node.

value: f64

The offending value.

AnchorNotUnit

The first node is not at t = 0 or its discount factor is not 1.

InvalidTime

t is negative or non-finite.

Fields

t: f64

The offending value of t.

Type(TypeError)

A day-count query failed.

DuplicateNode

Two construction points have the same t (used in slope / spline construction).

Fields

t: f64

The duplicated time.

Trait Implementations

impl Clone for CurveError

fn clone(&self) -> CurveError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CurveError

impl Debug for CurveError

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

Formats the value using the given formatter.

impl Display for CurveError

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

Formats the value using the given formatter.

impl Error for CurveError

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<CurveError> for BootstrapError

fn from(e: CurveError) -> Self

Converts to this type from the input type.

impl From<MathError> for CurveError

fn from(e: MathError) -> Self

Converts to this type from the input type.

impl From<TypeError> for CurveError

fn from(e: TypeError) -> Self

Converts to this type from the input type.

impl PartialEq for CurveError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CurveError