Enum OptimError 

pub enum OptimError {
    LineSearchFailed {
        iteration: usize,
        reason: String,
    },
    NotDescentDirection {
        directional_derivative: f64,
    },
    InvalidFunctionValue {
        value: f64,
    },
    SingularMatrix,
    DimensionMismatch {
        expected: usize,
        actual: usize,
    },
    NoObjective,
    NoInitialPoint,
    Infeasible {
        violation: f64,
    },
    Unbounded,
    LPInfeasible,
    QPNotPositiveSemiDefinite,
    MILPInfeasible,
    Other(String),
}

Errors that can occur during optimization.

Variants

LineSearchFailed

Fields

iteration: usize

reason: String

NotDescentDirection

Fields

directional_derivative: f64

InvalidFunctionValue

Fields

value: f64

SingularMatrix

DimensionMismatch

Fields

expected: usize

actual: usize

NoObjective

NoInitialPoint

Infeasible

Fields

violation: f64

Unbounded

LPInfeasible

QPNotPositiveSemiDefinite

MILPInfeasible

Other(String)

Trait Implementations

impl Debug for OptimError

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

Formats the value using the given formatter.

impl Display for OptimError

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

Formats the value using the given formatter.

impl Error for OptimError

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<&str> for OptimError

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<LinalgError> for OptimError

fn from(e: LinalgError) -> Self

Converts to this type from the input type.

impl From<LineSearchError> for OptimError

fn from(e: LineSearchError) -> Self

Converts to this type from the input type.

impl From<String> for OptimError

fn from(s: String) -> Self

Converts to this type from the input type.