Enum Error 

pub enum Error {
    Infeasible(String),
    Unbounded(String),
    InvalidInput(String),
    DimensionMismatch {
        expected: usize,
        got: usize,
    },
    Timeout {
        seconds: f64,
    },
    Overflow(String),
    NoConvergence {
        iterations: usize,
    },
    FfiRequired(String),
    Internal(String),
}

Errors that can occur during optimization

Variants

Infeasible(String)

Problem has no feasible solution

Unbounded(String)

Problem is unbounded (no finite optimal)

InvalidInput(String)

Invalid input data

DimensionMismatch

Dimension mismatch in input

Fields

expected: usize

Expected dimension

got: usize

Actual dimension

Timeout

Solver timeout

Fields

seconds: f64

Seconds elapsed before timeout

Overflow(String)

Numeric overflow during computation

NoConvergence

Algorithm did not converge

Fields

iterations: usize

Iterations completed

FfiRequired(String)

Feature requires FFI but it’s not enabled

Internal(String)

Internal error (bug)

Implementations

impl Error

pub fn infeasible(msg: impl Into<String>) -> Self

Create an infeasible error

pub fn invalid_input(msg: impl Into<String>) -> Self

Create an invalid input error

pub fn dimension_mismatch(expected: usize, got: usize) -> Self

Create a dimension mismatch error

pub fn timeout(seconds: f64) -> Self

Create a timeout error

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, __formatter: &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

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 Error