Enum SolverError 

pub enum SolverError {
    InvalidProblem(ProblemError),
    InvalidSettings(&'static str),
    NonPositiveSemidefiniteOmega,
    LinearSystem,
    Kkt(KktError),
    WarmStartDimension {
        field: &'static str,
        expected: usize,
        actual: usize,
    },
    WarmStartNonFinite(&'static str),
}

Errors that prevent solver setup.

Variants

InvalidProblem(ProblemError)

Invalid QP data.

InvalidSettings(&'static str)

Invalid scalar solver setting.

NonPositiveSemidefiniteOmega

Dense factor covariance is not positive semidefinite.

LinearSystem

A reduced positive-definite system could not be factored.

Kkt(KktError)

Internal KKT diagnostic dimensions were inconsistent.

WarmStartDimension

A warm-start vector has the wrong length.

Fields

field: &'static str

Warm-start field.

expected: usize

Expected vector length.

actual: usize

Supplied vector length.

WarmStartNonFinite(&'static str)

A warm-start vector contains NaN or infinity.

Trait Implementations

impl Debug for SolverError

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

Formats the value using the given formatter.

impl Display for SolverError

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

Formats the value using the given formatter.

impl Error for SolverError

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<KktError> for SolverError

fn from(source: KktError) -> Self

Converts to this type from the input type.

impl From<ProblemError> for SolverError

fn from(source: ProblemError) -> Self

Converts to this type from the input type.

impl From<SolverError> for PortfolioError

fn from(source: SolverError) -> Self

Converts to this type from the input type.